98940A405 | 4140 Black-Oxide Steel Precision Acme Lead Screw

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Metric Trapezoidal Class 7H

Metric Trapezoidal Class 8e

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Fully Threaded

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Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 2,999 lb.

3,000 lb. to 9,999 lb.

10,000 lb. or greater

Not Rated

Tensile Strength

Less than 10,000 psi

10,000 psi to 19,999 psi

20,000 psi to 39,999 psi

40,000 psi to 99,999 psi

100,000 psi or greater

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EAR99

DFARS Specialty Metals

Flange Material

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976 Products

...

Precision Acme Lead Screws and Nuts

Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.

Lead Screws—Right-Hand Thread


	Right-Hand Threads

1018 Low-Carbon Steel—Carbon steel lead screws and flanges have good machinability.

Black-Oxide 4140 Alloy Steel—Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance and a dark surface color.

304 Stainless Steel—304 stainless steel lead screws have good corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Thread Size	Lg.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
1018 Low-Carbon Steel



		1/4"-16	18"	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A981	000000


		1/4"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A032	00000
		1/4"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A132	00000
		1/4"-20	18"	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A984	00000
		1/4"-20	3 ft.	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A985	00000
		3/8"-8	3 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A326	00000
		3/8"-8	6 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A726	00000
		3/8"-10	18"	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A988	00000
		3/8"-10	3 ft.	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A327	00000
		3/8"-10	6 ft.	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A727	00000
		3/8"-12	18"	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A992	00000


		3/8"-12	3 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A993	00000
		3/8"-12	6 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A994	00000
		3/8"-16	18"	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A996	00000
		3/8"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A334	00000
		3/8"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A734	00000
		1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A005	00000
		1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A105	00000
		5/8"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A997	000000
		5/8"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A998	000000
		5/8"-8	3 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A009	00000


		5/8"-8	6 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A109	00000
		5/8"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A328	00000
		5/8"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A728	00000
		3/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A013	00000
		3/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A113	000000
		3/4"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A017	00000
		3/4"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A117	000000
		3/4"-8	3 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A075	00000
		3/4"-8	6 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A175	00000
		3/4"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A030	00000


		3/4"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A957	000000
		3/4"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A077	00000
		3/4"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A177	000000
		7/8"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A966	00000
		7/8"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A967	000000
		1"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A018	00000
		1"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A118	000000
		1"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A025	00000
		1"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A125	00000
		1"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A029	00000


		1"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A129	000000
		1"-8	3 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A076	00000
		1"-8	6 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A176	000000
		1"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A033	00000
		1"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A133	00000
		1 1/4"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A041	00000
		1 1/4"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A141	000000
		1 1/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A045	00000
		1 1/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A145	00000
		1 1/2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A053	00000

1 1/2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A153	000000
1 1/2"-5	18"	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 126	53,000 psi	99030A181	00000
1 1/2"-5	3 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 126	53,000 psi	99030A182	000000
1 1/2"-5	6 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 126	53,000 psi	99030A183	000000
1 1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A031	000000
1 1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A131	000000
2"-2	3 ft.	Acme	1:1	1	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A008	000000
2"-2	6 ft.	Acme	1:1	1	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A108	000000
2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A057	000000
2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A157	000000
2"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A023	000000
2"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A123	000000
2 1/2"-3	3 ft.	Acme	1:1	1	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A014	000000
2 1/2"-3	6 ft.	Acme	1:1	1	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A114	000000
2 1/2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A065	000000
2 1/2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A165	000000

Black-Oxide 4140 Alloy Steel



		1/4"-16	18"	Acme	1:1	1	0.063"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A191	00000


		1/4"-16	3 ft.	Acme	1:1	1	0.063"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A192	00000
		1/4"-16	6 ft.	Acme	1:1	1	0.063"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A193	000000
		1/4"-20	18"	Acme	1:1	1	0.05"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	99030A184	00000
		1/4"-20	3 ft.	Acme	1:1	1	0.05"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	99030A185	00000
		1/4"-20	6 ft.	Acme	1:1	1	0.05"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	99030A186	000000
		3/8"-8	3 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A605	00000
		3/8"-8	6 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A004	00000
		3/8"-12	18"	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A303	00000
		3/8"-12	3 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A615	00000
		3/8"-12	6 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A104	000000


		3/8"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A619	00000
		3/8"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A016	000000
		1/2"-10	18"	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A305	00000
		1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A625	00000
		1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A106	000000
		5/8"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A634	00000
		5/8"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A108	000000
		5/8"-8	18"	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A306	00000
		5/8"-8	3 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A633	00000
		5/8"-8	6 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A109	000000


		5/8"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A631	00000
		5/8"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A024	000000
		3/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A635	000000
		3/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A112	000000
		3/4"-6	18"	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A307	00000
		3/4"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A637	00000
		3/4"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A113	000000
		3/4"-8	18"	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A194	00000
		3/4"-8	3 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A195	00000
		3/4"-8	6 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A196	000000


		3/4"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A639	000000
		3/4"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A114	000000
		3/4"-16	18"	Acme	1:1	1	0.063"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A197	00000
		3/4"-16	3 ft.	Acme	1:1	1	0.063"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A198	00000
		3/4"-16	6 ft.	Acme	1:1	1	0.063"	±0.0003"/1"	Acme Class 2C	Brinell 200	60,000 psi	98940A199	000000
		1"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A641	00000
		1"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A118	000000
		1"-5	18"	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A308	00000
		1"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A643	000000
		1"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A119	000000


		1"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A645	000000
		1"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A120	000000
		1"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A647	000000
		1"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A121	000000
		1 1/4"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A649	000000
		1 1/4"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A123	000000
		1 1/4"-5	18"	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A309	00000
		1 1/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A651	000000
		1 1/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A124	000000
		1 1/2"-4	18"	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A401	00000

1 1/2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A653	000000
1 1/2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A127	000000
1 1/2"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A655	000000
1 1/2"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A128	000000
2"-4	18"	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A405	000000
4140 Black-Oxide Steel Precision Acme Lead Screw, Right Hand, 2"-4 Thread Size, 18" Long Product Detail QuantityEachIn stock Select a compatible file type: Parasolid Compatible Products for This Precision Lead Screw
2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A657	000000
2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A132	000000

304 Stainless Steel



		1/4"-16	18"	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A965	00000


		1/4"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A966	00000
		1/4"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A209	000000
		1/4"-20	18"	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A967	00000
		1/4"-20	3 ft.	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A968	00000
		1/4"-20	6 ft.	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A211	000000
		3/8"-8	3 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A114	00000
		3/8"-8	6 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A320	000000
		3/8"-10	3 ft.	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A120	00000
		3/8"-10	6 ft.	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A335	000000
		3/8"-12	18"	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A976	00000


		3/8"-12	3 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A124	00000
		3/8"-12	6 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A345	000000
		3/8"-16	18"	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A977	00000
		3/8"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A126	00000
		3/8"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A350	000000
		1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A132	00000
		1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A370	000000
		5/8"-5	18"	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A110	00000
		5/8"-5	3 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A120	00000
		5/8"-5	6 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A130	000000


		5/8"-8	3 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A140	00000
		5/8"-8	6 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A385	000000
		5/8"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A138	000000
		5/8"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A387	000000
		3/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A142	000000
		3/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A390	000000
		3/4"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A144	000000
		3/4"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A393	000000
		3/4"-8	18"	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A210	00000
		3/4"-8	3 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A220	000000


		3/4"-8	6 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A230	000000
		3/4"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A146	000000
		3/4"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A395	000000
		1"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A148	000000
		1"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A405	000000
		1"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A150	000000
		1"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A410	000000
		1"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A111	000000
		1"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A415	000000
		1"-8	18"	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A240	000000


		1"-8	3 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A250	000000
		1"-8	6 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A260	000000
		1"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A243	000000
		1"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A420	000000
		1 1/4"-4	18"	Acme	1:1	1	0.25"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A140	000000
		1 1/4"-4	3 ft.	Acme	1:1	1	0.25"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A150	000000
		1 1/4"-4	6 ft.	Acme	1:1	1	0.25"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A160	000000
		1 1/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A371	000000
		1 1/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A430	000000
		1 1/2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A418	000000

1 1/2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A435	000000
1 1/2"-5	18"	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A170	000000
1 1/2"-5	3 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A180	000000
1 1/2"-5	6 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000 psi	90497A190	00000000
2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A408	000000
2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A445	000000

Lead Screws—Left-Hand Thread


	Left-Hand Threads

1018 Low-Carbon Steel—Carbon steel lead screws and flanges have good machinability.

Black-Oxide 4140 Alloy Steel—Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance and a dark surface color.

304 Stainless Steel—304 stainless steel lead screws have good corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Thread Size	Lg., ft.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
1018 Low-Carbon Steel



		1/4"-16	3	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A432	000000


		1/4"-16	6	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A532	00000
		3/8"-10	3	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A527	00000
		3/8"-10	6	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A427	00000
		3/8"-16	3	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A534	00000
		3/8"-16	6	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A434	000000
		1/2"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A405	00000
		1/2"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A505	00000
		5/8"-8	3	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A409	00000
		5/8"-8	6	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A509	000000
		5/8"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A628	00000


		5/8"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A528	00000
		3/4"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A413	00000
		3/4"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A513	000000
		3/4"-6	3	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A417	00000
		3/4"-6	6	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A517	000000
		3/4"-8	3	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A475	00000
		3/4"-8	6	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A575	00000
		3/4"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A752	00000
		3/4"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A230	000000
		3/4"-16	3	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A477	00000


		3/4"-16	6	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A577	000000
		1"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A418	000000
		1"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A518	000000
		1"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A425	00000
		1"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A525	00000
		1"-6	3	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A429	00000
		1"-6	6	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A529	00000
		1"-8	3	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A476	00000
		1"-8	6	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A576	000000
		1"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A433	00000


		1"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A533	00000
		1 1/4"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A441	00000
		1 1/4"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A541	000000
		1 1/4"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A445	00000
		1 1/4"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A545	000000
		1 1/2"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A453	00000
		1 1/2"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A553	000000
		1 1/2"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A431	000000
		1 1/2"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A531	000000
		2"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A457	000000


		2"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A557	000000


		Black-Oxide 4140 Alloy Steel



				3/8"-12	3	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A715	00000


3/8"-12				6	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A404	00000
3/8"-16	3			Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A719	00000
3/8"-16	6			Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A316	000000
1/2"-10	3			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A725	00000
1/2"-10	6			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A406	000000
5/8"-5	3			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A734	00000
5/8"-5	6			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A408	000000
5/8"-8	3			Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A733	00000
5/8"-8	6			Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A409	000000
5/8"-10	3			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A731	00000


5/8"-10	6			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A324	000000
3/4"-5	3			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A735	00000
3/4"-5	6			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A412	000000
3/4"-6	3			Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A737	00000
3/4"-6	6			Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A413	000000
3/4"-10	3			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A739	000000
3/4"-10	6			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A414	000000
1"-4	3			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A741	000000
1"-4	6			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A418	000000
1"-5	3			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A743	000000


1"-5	6			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A419	000000
1"-10	3			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A747	000000
1"-10	6			Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A421	000000
1 1/4"-4	3			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A749	000000
1 1/4"-4	6			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A423	000000
1 1/4"-5	3			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A751	000000
1 1/4"-5	6			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A424	000000
1 1/2"-4	3			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A753	000000
1 1/2"-4	6			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A427	000000
1 1/2"-5	3			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A755	000000


1 1/2"-5	6			Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A428	000000
2"-4	3			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A757	000000
2"-4	6			Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A432	000000


304 Stainless Steel



				3/8"-8	3	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A001	00000


				3/8"-8	6	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A620	000000
				3/8"-10	3	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A002	00000
				3/8"-10	6	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A003	000000
				3/8"-12	3	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A004	00000
				3/8"-12	6	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A005	00000
				3/8"-16	3	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A225	00000
				3/8"-16	6	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A006	000000
				1/2"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A008	00000
				1/2"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A670	000000
				5/8"-8	3	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A240	00000


		5/8"-8	6	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A100	000000
		5/8"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A238	000000
		5/8"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A101	000000
		3/4"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A242	000000
		3/4"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A103	000000
		3/4"-6	3	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A113	000000
		3/4"-6	6	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A693	000000
		3/4"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A246	000000
		3/4"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A695	000000
		1"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A106	000000


		1"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A119	000000
		1"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A250	000000
		1"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A710	000000
		1"-6	3	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A208	000000
		1"-6	6	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A204	000000
		1"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A312	000000
		1"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A303	000000
		1 1/4"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A307	000000
		1 1/4"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A308	000000
		1 1/2"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A406	000000


		1 1/2"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A735	000000

Lead Screws—Right-Hand and Left-Hand Thread


	Right-Hand-and-Left-Hand Threads

Right-hand-and-left-hand threaded lead screws have right-hand threads on one end and left-hand threads on the other. Use them where you want to drive nuts in opposite directions at the same time, such as for widening and narrowing chutes on packing and assembly lines. Note: A short length of threading at the center of the lead screw is not usable.

Black-Oxide 4140 Alloy Steel—Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance and a dark surface color.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

					Usable Thread Lg.
	Thread Size	Lg., ft.	Thread Type	Speed Ratio	Right-Hand	Left-Hand	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
Black-Oxide 4140 Alloy Steel



		3/8"-12	3	Acme	1:1	17"	17"	1	0.083"	±0.0003"/1"	Acme Class 2C	Brinell 200	95,000	99015A250	0000000


		1/2"-10	3	Acme	1:1	17"	17"	1	0.1"	±0.0003"/1"	Acme Class 2C	Brinell 200	95,000	99015A260	000000
		5/8"-8	3	Acme	1:1	16 1/2"	16 1/2"	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 200	95,000	99015A270	000000
		3/4"-6	3	Acme	1:1	16 1/2"	16 1/2"	1	0.167"	±0.0003"/1"	Acme Class 2C	Brinell 200	95,000	99015A280	000000

Round Nuts—Right-Hand Thread

Iron—Iron nuts have good machinability and high strength.

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

PET—PET plastic nuts are lightweight and corrosion resistant.

PEEK—PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap.	Temp., ° F		Each
Iron



		3/8"-8	3/4"	1.344"	Stub Acme	1:1	1	0.125"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A521	000000


		3/8"-10	3/4"	1.344"	Stub Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A523	00000
		3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A111	00000
		3/8"-16	3/4"	1.344"	Acme	1:1	1	0.063"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A529	00000
		1/2"-10	1"	1.469"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A115	00000
		5/8"-5	1 1/4"	1.859"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A513	00000
		5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A119	00000
		5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A525	00000
		3/4"-5	1 1/2"	2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A123	00000
		3/4"-6	1 1/2"	2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A127	00000
		3/4"-10	1 1/2"	2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A526	00000


		7/8"-6	2"	2.985"	Acme	1:1	1	0.167"	Acme Class 2C	Not Rated	Not Rated	Not Rated	—	95365A631	00000
		1"-4	2"	2.984"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A506	00000
		1"-5	2"	2.984"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A131	000000
		1"-6	2"	2.984"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A135	00000
		1"-10	2"	2.984"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A139	000000
		1 1/4"-4	2 1/2"	3.734"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A507	000000
		1 1/4"-5	2 1/2"	3.734"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A143	000000
		1 1/2"-4	3"	4.469"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A147	000000


		932 Bearing Bronze



				3/8"-8	3/4"	1.344"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K131	00000


				3/8"-10	3/4"	1.344"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K133	00000
				3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K138	00000
				3/8"-16	3/4"	1.344"	Acme	1:1	1	0.063"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K39	00000
				1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,300 lb.	—	1343K134	00000
				5/8"-5	1 1/4"	1.859"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	2,000 lb.	—	1343K23	00000
				5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 65	Not Rated	2,000 lb.	—	1343K132	00000
				5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,000 lb.	—	1343K135	00000
				3/4"-5	1 1/2"	2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	2,900 lb.	—	1343K124	000000
				3/4"-6	1 1/2"	2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	2,900 lb.	—	1343K128	000000
				3/4"-10	1 1/2"	2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,900 lb.	—	1343K136	000000


				1"-4	2"	2.984"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K116	000000
				1"-5	2"	2.984"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K125	000000
				1"-6	2"	2.984"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K129	000000
				1"-10	2"	2.984"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K137	000000
				1 1/4"-4	2 1/2"	3.734"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	7,850 lb.	—	1343K117	000000
				1 1/4"-5	2 1/2"	3.734"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	7,850 lb.	—	1343K126	000000
				1 1/2"-4	3"	4.469"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	12,000 lb.	—	1343K118	000000


				PET



						3/8"-8	3/4"	1.344"	Acme	1:1	1	0.125"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K134	00000


						3/8"-10	3/4"	1.344"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K138	00000
3/8"-12						3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K149	00000
3/8"-16	3/4"					1.344"	Acme	1:1	1	0.063"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K39	00000
1/2"-10	1"					1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	1349K141	00000
5/8"-5	1 1/4"					1.859"	Acme	1:1	1	0.2"	Acme Class 2C	Not Rated	Not Rated	1,000 lb.	15 to 175	1349K23	00000
5/8"-8	1 1/4"					1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Not Rated	Not Rated	1,000 lb.	15 to 175	1349K136	00000
5/8"-10	1 1/4"					1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,000 lb.	15 to 175	1349K143	00000
3/4"-5	1 1/2"					2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	1349K121	000000
3/4"-6	1 1/2"					2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	1349K129	000000
3/4"-10	1 1/2"					2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	1349K145	000000


PEEK



						1/2"-10	1"	1.5"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	16,000 psi	5,650 lb.	-40 to 525	90493A250	000000

Round Nuts—Left-Hand Thread

Iron—Iron nuts have good machinability and high strength.

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

PET—PET plastic nuts are lightweight and corrosion resistant.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap.	Temp., ° F		Each
Iron



		3/8"-8	3/4"	1.344"	Stub Acme	1:1	1	0.125"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A621	000000


		3/8"-10	3/4"	1.344"	Stub Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A623	00000
		3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A311	00000
		3/8"-16	3/4"	1.344"	Acme	1:1	1	0.063"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A629	00000
		1/2"-10	1"	1.469"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A315	00000
		5/8"-5	1 1/4"	1.859"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A613	00000
		5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A319	00000
		5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A625	00000
		3/4"-5	1 1/2"	2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A323	00000
		3/4"-6	1 1/2"	2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A327	00000
		3/4"-10	1 1/2"	2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A626	00000


		1"-4	2"	2.984"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A606	000000
		1"-5	2"	2.984"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A331	000000
		1"-6	2"	2.984"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A335	00000
		1"-10	2"	2.984"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A339	00000
		1 1/4"-4	2 1/2"	3.734"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A607	000000
		1 1/4"-5	2 1/2"	3.734"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A343	000000
		1 1/2"-4	3"	4.469"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A347	000000


		932 Bearing Bronze



				3/8"-8	3/4"	1.344"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K231	00000


				3/8"-10	3/4"	1.344"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K233	00000
				3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K238	00000
				1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,300 lb.	—	1343K234	00000
				5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 65	Not Rated	2,000 lb.	—	1343K232	00000
				5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,000 lb.	—	1343K235	00000
				3/4"-5	1 1/2"	2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	2,900 lb.	—	1343K224	000000
				3/4"-6	1 1/2"	2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	2,900 lb.	—	1343K228	000000
				3/4"-10	1 1/2"	2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,900 lb.	—	1343K236	000000
				1"-4	2"	2.984"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K216	000000
				1"-5	2"	2.984"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K225	000000


				1"-6	2"	2.984"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K229	000000
				1"-10	2"	2.984"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	5,000 lb.	—	1343K237	000000
				1 1/4"-4	2 1/2"	3.734"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	7,850 lb.	—	1343K217	000000
				1 1/4"-5	2 1/2"	3.734"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	7,850 lb.	—	1343K226	000000
				1 1/2"-4	3"	4.469"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	12,000 lb.	—	1343K218	000000


				PET



						3/8"-8	3/4"	1.344"	Acme	1:1	1	0.125"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K135	00000


						3/8"-10	3/4"	1.344"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K139	00000
						3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K151	00000
						1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	1349K142	00000
						5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Not Rated	Not Rated	1,000 lb.	15 to 175	1349K137	00000
5/8"-10						1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,000 lb.	15 to 175	1349K144	00000
3/4"-5	1 1/2"					2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	1349K122	000000
3/4"-6	1 1/2"					2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	1349K131	000000
3/4"-10	1 1/2"					2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	1349K146	000000

Externally Threaded Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Acetal—Acetal nuts have good wear and corrosion resistance.

PET—PET plastic nuts are lightweight and corrosion resistant.

PEEK—PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap.	Temp., ° F		Each
360 Brass



		1/4"-20	5/8"	0.688"	Acme	1:1	1	0.05"	9/16"-18	3/8"	Acme Class 2C	Brinell 141	50,000 psi	310 lb.	—	95072A171	000000


		1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 141	50,000 psi	1,250 lb.	—	95072A172	00000
		3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Brinell 141	50,000 psi	2,800 lb.	—	95072A173	00000
		3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.166"	1"-18	1/2"	Acme Class 2C	Brinell 141	50,000 psi	2,800 lb.	—	95072A174	00000
		3/4"-8	1 1/4"	1.125"	Acme	1:1	1	0.125"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800 lb.	—	95072A351	00000
		3/4"-10	1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Brinell 141	50,000 psi	2,800 lb.	—	95072A175	00000
		3/4"-16	1 1/4"	1.125"	Acme	1:1	1	0.063"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800 lb.	—	95072A371	00000
		1"-4	1 1/2"	1.5"	Acme	1:1	1	0.25"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 141	50,000 psi	5,000 lb.	—	95072A176	00000
		1"-5	1 1/2"	1.5"	Acme	1:1	1	0.2"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 141	50,000 psi	5,000 lb.	—	95072A177	00000
		1"-8	1 1/2"	1.5"	Acme	1:1	1	0.125"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	5,000 lb.	—	95072A361	00000
		1"-10	1 1/2"	1.5"	Acme	1:1	1	0.1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 141	50,000 psi	5,000 lb.	—	95072A178	00000


		1 1/2"-10	2 19/64"	2.125"	Acme	1:1	1	0.1"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 141	50,000 psi	11,250 lb.	—	95072A179	000000


		673 Bronze



				1/4"-16	5/8"	0.688"	Acme	1:1	1	0.063"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A881	00000


				3/8"-8	5/8"	0.688"	Stub Acme	1:1	1	0.125"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A124	00000
				3/8"-10	5/8"	0.688"	Stub Acme	1:1	1	0.1"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A127	00000
				3/8"-12	5/8"	0.688"	Acme	1:1	1	0.083"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A108	00000
				3/8"-16	5/8"	0.688"	Acme	1:1	1	0.063"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A129	00000
				1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A109	00000
				5/8"-5	1"	1.125"	Acme	1:1	1	0.2"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A110	00000
				5/8"-8	1"	1.125"	Acme	1:1	1	0.125"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A111	00000
				5/8"-10	1"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A149	00000
				3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A112	00000
				3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.167"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A113	00000


				3/4"-10	1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A131	00000
				7/8"-6	1 1/2"	1.5"	Acme	1:1	1	0.167"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	Not Rated	—	95072A883	00000
				1"-4	1 1/2"	1.5"	Acme	1:1	1	0.25"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A132	00000
				1"-5	1 1/2"	1.5"	Acme	1:1	1	0.2"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A114	00000
				1"-6	1 1/2"	1.5"	Acme	1:1	1	0.167"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A115	00000
				1"-10	1 1/2"	1.5"	Acme	1:1	1	0.1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A116	00000
				1 1/4"-4	1 3/4"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A117	000000
				1 1/4"-5	1 3/4"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A118	000000
				1 1/2"-4	2 19/64"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A119	000000
				1 1/2"-5	2 19/64"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A121	000000


				2"-4	2 3/4"	2.75"	Acme	1:1	1	0.25"	2 35/64"-18	7/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A122	000000
				2"-5	2 3/4"	2.75"	Acme	1:1	1	0.2"	2 35/64"-18	7/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A761	000000
				2 1/2"-4	3 3/8"	3.375"	Acme	1:1	1	0.25"	3 9/64"-12	1 9/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A123	000000


				Acetal



						3/4"-8	1 1/4"	1.125"	Acme	1:1	1	0.125"	1"-18	1/2"	Acme Class 2C	Rockwell R120	8,000 psi	1,400 lb.	-40 to 190	90493A110	00000


3/4"-16						1 1/4"	1.125"	Acme	1:1	1	0.063"	1"-18	1/2"	Acme Class 2C	Rockwell R120	8,000 psi	1,400 lb.	-40 to 190	90493A120	00000
1"-8	1 1/2"					1.5"	Acme	1:1	1	0.125"	1 3/8"-16	1/2"	Acme Class 2C	Rockwell R120	8,000 psi	2,500 lb.	-40 to 190	90493A130	00000
1 1/2"-10	2 19/64"					2.125"	Acme	1:1	1	0.1"	1 31/32"-18	13/16"	Acme Class 2C	Rockwell R120	8,000 psi	5,600 lb.	-40 to 190	90493A140	000000


PET



						1/4"-16	5/8"	0.688"	Acme	1:1	1	0.063"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	160 lb.	15 to 175	95075A210	00000


						1/4"-20	5/8"	0.688"	Acme	1:1	1	0.05"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	160 lb.	15 to 175	95075A340	00000
						3/8"-8	5/8"	0.688"	Acme	1:1	1	0.125"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	95075A224	00000
						3/8"-10	5/8"	0.688"	Acme	1:1	1	0.1"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	95075A227	00000
						3/8"-12	5/8"	0.688"	Acme	1:1	1	0.083"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	95075A104	00000
						3/8"-16	5/8"	0.688"	Acme	1:1	1	0.063"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	95075A229	00000
						1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	95075A106	00000
						5/8"-8	1"	1.125"	Acme	1:1	1	0.125"	15/16"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	1,000 lb.	15 to 175	95075A109	00000
						5/8"-10	1"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	1,000 lb.	15 to 175	95075A249	00000
						3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	95075A112	00000
						3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.167"	1"-18	1/2"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	95075A113	00000


		3/4"-10	1 1/4"			1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	95075A114	00000
		1"-4	1 1/2"			1.5"	Acme	1:1	1	0.25"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	2,500 lb.	15 to 175	95075A118	00000
		1"-5	1 1/2"			1.5"	Acme	1:1	1	0.2"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	2,500 lb.	15 to 175	95075A119	00000
		1"-6	1 1/2"			1.5"	Acme	1:1	1	0.167"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	2,500 lb.	15 to 175	95075A120	00000
		1"-10	1 1/2"			1.5"	Acme	1:1	1	0.1"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	2,500 lb.	15 to 175	95075A121	00000
		1 1/4"-5	1 3/4"			2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Not Rated	Not Rated	3,900 lb.	15 to 175	95075A218	00000
		1 1/2"-4	2 19/64"			2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Not Rated	Not Rated	6,000 lb.	15 to 175	95075A219	000000
		2"-4	3 15/32"			2.75"	Acme	1:1	1	0.25"	2 35/64"-18	7/8"	Acme Class 2C	Not Rated	Not Rated	10,000 lb.	15 to 175	95075A222	000000


		PEEK



						1/4"-20	5/8"	0.688"	Acme	1:1	1	0.05"	9/16"-18	3/8"	Acme Class 2C	Not Rated	16,000 psi	150 lb.	-40 to 525	90493A150	000000


						1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Not Rated	16,000 psi	620 lb.	-40 to 525	90493A160	000000
						3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Not Rated	16,000 psi	1,400 lb.	-40 to 525	90493A170	000000
						3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.166"	1"-18	1/2"	Acme Class 2C	Not Rated	16,000 psi	1,400 lb.	-40 to 525	90493A180	000000
						3/4"-10	1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Not Rated	16,000 psi	1,400 lb.	-40 to 525	90493A190	000000
						1"-4	1 1/2"	1.5"	Acme	1:1	1	0.25"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	16,000 psi	2,500 lb.	-40 to 525	90493A210	000000
						1"-5	1 1/2"	1.5"	Acme	1:1	1	0.2"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	16,000 psi	2,500 lb.	-40 to 525	90493A220	000000
						1"-10	1 1/2"	1.5"	Acme	1:1	1	0.1"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	16,000 psi	2,500 lb.	-40 to 525	90493A230	000000
						1 1/4"-5	1 3/4"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Not Rated	16,000 psi	3,900 lb.	-40 to 525	90493A240	000000

Externally Threaded Nuts—Left-Hand Thread

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap.		Each
360 Brass



		3/4"-8	1 1/4"	1.125"	Acme	1:1	1	0.125"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800 lb.	95072A352	000000


		3/4"-16	1 1/4"	1.125"	Acme	1:1	1	0.063"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800 lb.	95072A372	00000
		1"-8	1 1/2"	1.5"	Acme	1:1	1	0.125"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	5,000 lb.	95072A362	00000
		1 1/2"-10	2 19/64"	2.125"	Acme	1:1	1	0.1"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	11,250 lb.	95072A442	000000


		673 Bronze



				1/4"-16	5/8"	0.688"	Acme	1:1	1	0.063"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A882	00000


				3/8"-12	5/8"	0.688"	Acme	1:1	1	0.083"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A208	00000
				1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A209	00000
				5/8"-5	1"	1.125"	Acme	1:1	1	0.2"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A210	00000
				5/8"-8	1"	1.125"	Acme	1:1	1	0.125"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A211	00000
				5/8"-10	1"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A249	00000
				3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A212	00000
				3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.167"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A213	00000
				3/4"-10	1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A231	00000
				1"-4	1 1/2"	1.5"	Acme	1:1	1	0.25"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A232	00000
				1"-5	1 1/2"	1.5"	Acme	1:1	1	0.2"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A214	00000


				1"-6	1 1/2"	1.5"	Acme	1:1	1	0.167"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A224	00000
				1"-10	1 1/2"	1.5"	Acme	1:1	1	0.1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A216	00000
				1 1/4"-4	1 3/4"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A217	000000
				1 1/4"-5	1 3/4"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A218	000000
				1 1/2"-4	2 19/64"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A219	000000
				1 1/2"-5	2 19/64"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A225	000000
				2"-4	2 3/4"	2.75"	Acme	1:1	1	0.25"	2 35/64"-18	7/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A226	000000

Flange Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Flange Nuts—Right-Hand Thread.

Flange nuts have wide, machinable surfaces for custom mounting.

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

				Flange
	Thread Size	Lg.	Dia.	Dia.	Thk.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi	Dynamic Thrust Load Cap., lb.		Each
932 Bearing Bronze



		1/2"-10	1 3/4"	1"	2"	3/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	35,000	1,200	97790A110	0000000


		3/4"-5	2 1/4"	1.375"	2 5/8"	9/16"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	35,000	2,800	97790A120	000000
		3/4"-6	2 1/4"	1.375"	2 5/8"	9/16"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	35,000	2,800	97790A130	000000
		3/4"-10	2 1/4"	1.375"	2 5/8"	9/16"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	35,000	2,800	97790A140	000000
		1"-4	3"	1.625"	3"	5/8"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	35,000	5,000	97790A150	000000
		1"-5	3"	1.625"	3"	5/8"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	35,000	5,000	97790A160	000000
		1"-10	3"	1.625"	3"	5/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	35,000	5,000	97790A170	000000
		1 1/4"-5	3 3/4"	1.875"	3 1/4"	5/8"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	35,000	7,800	97790A180	000000

Platform Nuts—Left-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Platform Nuts—Left-Hand Thread.

Platform nuts have wide, machinable surfaces for custom mounting.

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Wd.	Ht.	Ctr. Ht.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.		Each
932 Bearing Bronze



	1/2"-10	1 3/4"	2"	1 1/8"	5/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,200	1710K49	0000000


	3/4"-5	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K44	000000
	3/4"-6	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K47	000000
	3/4"-10	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K51	000000
	1"-4	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K41	000000
	1"-5	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K45	000000
	1"-6	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K48	000000
	1"-10	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K52	000000
	1 1/2"-4	4 1/2"	3 5/8"	2 9/16"	1 1/2"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	11,000	1710K43	000000

Platform Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Platform Nuts—Right-Hand Thread.

Platform nuts have wide, machinable surfaces for custom mounting.

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Wd.	Ht.	Ctr. Ht.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.		Each
932 Bearing Bronze



	1/2"-10	1 3/4"	2"	1 1/8"	5/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,200	1710K9	0000000


	3/4"-5	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K4	000000
	3/4"-6	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K7	000000
	3/4"-10	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K11	000000
	1"-4	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K1	000000
	1"-5	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K5	000000
	1"-6	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K8	000000
	1"-10	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K12	000000
	1 1/2"-4	4 1/2"	3 5/8"	2 9/16"	1 1/2"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	11,000	1710K3	000000

Flanges

Image of Attribute. Front orientation. Contains Annotated.

Thread onto an externally threaded acme nut to create a custom flange nut.

1117 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

Black-Oxide 1117 Carbon Steel—Black-oxide carbon steel flanges have mild corrosion resistance in dry environments and a dark surface color.

1215 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

303 Stainless Steel—303 stainless steel flanges have good corrosion resistance.

	Flange Dia.	Flange Thk.	Bolt Circle Dia.	Flange Hardness		Each
1117 Carbon Steel



	1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 156	95082A644	000000


	1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 156	95082A645	00000
	2 35/64"-18	4 15/16"	29/32"	4 1/16"	Brinell 156	95082A646	00000
	3 9/64"-12	5 3/8"	1 37/64"	4 3/8"	Brinell 156	95082A647	000000


	Black-Oxide 1117 Carbon Steel



			9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 135	1329K101	00000


			15/16"-16	2 39/64"	17/32"	2 3/32"	Brinell 135	1329K102	00000
			1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 135	1329K104	00000
			1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 135	1329K105	00000


			1215 Carbon Steel



					9/16"-18	1 39/64"	13/32"	1 1/8"	Not Rated	95082A641	00000


					15/16"-16	2 5/8"	17/32"	2 3/32"	Not Rated	95082A642	00000
					1"-18	2 5/8"	17/32"	2 3/32"	Not Rated	95082A643	00000


					303 Stainless Steel



							9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 140	1329K11	00000


							15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K12	00000
							1"-18	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K13	00000
							1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 140	1329K14	00000
							1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 140	1329K15	000000
							2 35/64"-18	4 15/16"	29/32"	4 1/16"	Brinell 140	1329K16	000000

Metric Precision Lead Screws and Nuts

Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread direction, size, and number of thread starts.

Lead Screws—Right-Hand Thread

1018 Low-Carbon Steel—Carbon steel lead screws and flanges have good machinability.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg., mm	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi	Specs. Met		Each
1018 Low-Carbon Steel



	M10 × 2 mm	250	Metric Trapezoidal	1:1	1	2	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K71	000000


	M10 × 2 mm	500	Metric Trapezoidal	1:1	1	2	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K72	00000
	M10 × 2 mm	750	Metric Trapezoidal	1:1	1	2	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K73	00000
	M10 × 2 mm	1,750	Metric Trapezoidal	1:1	1	2	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	70,000	DIN 103	7549K1	00000
	M12 × 3 mm	500	Metric Trapezoidal	1:1	1	3	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K74	00000
	M12 × 3 mm	1,000	Metric Trapezoidal	1:1	1	3	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K75	00000
	M12 × 3 mm	1,750	Metric Trapezoidal	1:1	1	3	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	70,000	DIN 103	7549K2	00000
	M16 × 3 mm	500	Metric Trapezoidal	1:1	1	3	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K76	00000
	M16 × 3 mm	1,000	Metric Trapezoidal	1:1	1	3	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K77	00000
	M16 × 3 mm	1,750	Metric Trapezoidal	1:1	1	3	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	70,000	DIN 103	7549K4	00000
	M20 × 4 mm	500	Metric Trapezoidal	1:1	1	4	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K78	00000


	M20 × 4 mm	1,000	Metric Trapezoidal	1:1	1	4	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K79	00000
	M20 × 4 mm	1,750	Metric Trapezoidal	1:1	1	4	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	70,000	DIN 103	7549K6	000000
	M24 × 5 mm	500	Metric Trapezoidal	1:1	1	5	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K81	00000
	M24 × 5 mm	1,000	Metric Trapezoidal	1:1	1	5	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K82	00000
	M24 × 5 mm	1,750	Metric Trapezoidal	1:1	1	5	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	70,000	DIN 103	7549K7	000000
	M28 × 5 mm	1,000	Metric Trapezoidal	1:1	1	5	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K83	00000
	M28 × 5 mm	1,750	Metric Trapezoidal	1:1	1	5	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K84	000000
	M40 × 7 mm	1,000	Metric Trapezoidal	1:1	1	7	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	85,000	DIN 103	7549K85	000000
	M40 × 7 mm	1,750	Metric Trapezoidal	1:1	1	7	±0.15 mm/300 mm	Metric Trapezoidal Class 8e	Brinell 150	70,000	DIN 103	7549K12	000000

Round Nuts—Right-Hand Thread

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	Specs. Met		Each
932 Bearing Bronze



	M10 × 2 mm	3/4"	0.75"	Metric Trapezoidal	1:1	1	2	Metric Trapezoidal Class 7H	Brinell 70	Not Rated	670	DIN 103	7549K32	000000


	M12 × 3 mm	1"	0.875"	Metric Trapezoidal	1:1	1	3	Metric Trapezoidal Class 7H	Brinell 70	Not Rated	1,100	DIN 103	7549K33	00000
	M16 × 3 mm	1 1/8"	1.125"	Metric Trapezoidal	1:1	1	3	Metric Trapezoidal Class 7H	Brinell 70	Not Rated	2,000	DIN 103	7549K35	00000
	M20 × 4 mm	1 1/2"	1.25"	Metric Trapezoidal	1:1	1	4	Metric Trapezoidal Class 7H	Brinell 70	Not Rated	3,100	DIN 103	7549K37	00000
	M24 × 5 mm	2"	1.75"	Metric Trapezoidal	1:1	1	5	Metric Trapezoidal Class 7H	Brinell 70	Not Rated	4,500	DIN 103	7549K38	00000
	M28 × 5 mm	2"	1.75"	Metric Trapezoidal	1:1	1	5	Metric Trapezoidal Class 7H	Brinell 69	44,000 psi	6,100	DIN 103	7549K87	00000
	M40 × 7 mm	3"	2.5"	Metric Trapezoidal	1:1	1	7	Metric Trapezoidal Class 7H	Brinell 70	Not Rated	12,300	DIN 103	7549K43	00000

Externally Threaded Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.

Manganese Bronze—Manganese bronze nuts have good strength and wear resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Size	Lg.	Thread Fit	Hardness	Tensile Strength, psi	Dynamic Thrust Load Cap., lb.	Specs. Met		Each
Manganese Bronze



		M10 × 2 mm	5/8"	0.68"	Metric Trapezoidal	1:1	1	2	9/16"-18	3/8"	Metric Trapezoidal Class 7H	Brinell 126	75,000	670	DIN 103	7549K88	000000


		M12 × 3 mm	3/4"	1.125"	Metric Trapezoidal	1:1	1	3	15/16"-16	1/2"	Metric Trapezoidal Class 7H	Brinell 126	75,000	1,100	DIN 103	7549K89	00000
		M16 × 3 mm	1"	1.125"	Metric Trapezoidal	1:1	1	3	15/16"-16	1/2"	Metric Trapezoidal Class 7H	Brinell 126	75,000	2,000	DIN 103	7549K91	00000
		M20 × 4 mm	1 1/4"	1.125"	Metric Trapezoidal	1:1	1	4	1"-18	1/2"	Metric Trapezoidal Class 7H	Brinell 126	75,000	3,100	DIN 103	7549K92	00000
		M24 × 5 mm	1 1/2"	1.5"	Metric Trapezoidal	1:1	1	5	1 3/8"-16	1/2"	Metric Trapezoidal Class 7H	Brinell 126	75,000	4,500	DIN 103	7549K93	000000
		M28 × 5 mm	1 3/4"	2.125"	Metric Trapezoidal	1:1	1	5	1 31/32"-18	13/16"	Metric Trapezoidal Class 7H	Brinell 126	75,000	6,100	DIN 103	7549K94	000000
		M40 × 7 mm	2 19/64"	2.125"	Metric Trapezoidal	1:1	1	7	1 31/32"-18	13/16"	Metric Trapezoidal Class 7H	Brinell 126	75,000	12,300	DIN 103	7549K95	000000

Flange Nuts—Right-Hand Thread

Manganese Bronze—Manganese bronze nuts have good strength and wear resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

				Flange
	Thread Size	Lg.	Dia.	Dia.	Thk.	Thread Type	Speed Ratio	Bolt Circle Dia.	No. of Thread Starts	Travel Distance per Turn, mm	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	No. of Mounting Holes	Specs. Met		Each
Manganese Bronze



		M10 × 2 mm	5/8"	0.688"	1 39/64"	13/32"	Metric Trapezoidal	1:1	1 1/8"	1	2	Metric Trapezoidal Class 7H	Brinell 126	Not Rated	670	4	DIN 103	7549K16	000000


		M12 × 3 mm	3/4"	1.125"	2 39/64"	17/32"	Metric Trapezoidal	1:1	2 3/32"	1	3	Metric Trapezoidal Class 7H	Brinell 126	Not Rated	1,100	4	DIN 103	7549K17	00000
		M16 × 3 mm	1"	1.125"	2 39/64"	17/32"	Metric Trapezoidal	1:1	2 3/32"	1	3	Metric Trapezoidal Class 7H	Brinell 126	Not Rated	2,000	4	DIN 103	7549K19	00000
		M20 × 4 mm	1 1/4"	1.125"	2 39/64"	17/32"	Metric Trapezoidal	1:1	2 3/32"	1	4	Metric Trapezoidal Class 7H	Brinell 126	Not Rated	3,100	4	DIN 103	7549K22	00000
		M24 × 5 mm	1 1/2"	1.5"	2 3/4"	33/64"	Metric Trapezoidal	1:1	2 17/64"	1	5	Metric Trapezoidal Class 7H	Brinell 126	Not Rated	4,500	4	DIN 103	7549K23	00000
		M28 × 5 mm	1 3/4"	2.125"	4 13/64"	53/64"	Metric Trapezoidal	1:1	3 7/16"	1	5	Metric Trapezoidal Class 7H	Brinell 126	75,000 psi	6,100	4	DIN 103	7549K86	000000
		M40 × 7 mm	2 19/64"	2.125"	4 13/64"	53/64"	Metric Trapezoidal	1:1	3 7/16"	1	7	Metric Trapezoidal Class 7H	Brinell 126	Not Rated	12,300	4	DIN 103	7549K27	000000

Ultra-Precision Lead Screws and Nuts


	Style A	Style B	Style C

Operating with less backlash (play) than Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. All components are corrosion resistant for use in harsh environments. To ensure compatibility, select components that have the same thread type, thread size, and number of thread starts.

Lead Screws—Right-Hand Thread

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
303 Stainless Steel



	1/8"-20.8	6"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K686	000000


	1/8"-20.8	1 ft.	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K688	00000
	1/8"-41.7	6"	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6350K685	00000
	1/8"-41.7	1 ft.	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6350K687	00000
	9/64"-20.8	1 ft.	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K691	00000
	9/64"-20.8	18"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6642K12	00000
	9/64"-41.7	6"	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6350K689	00000
	9/64"-41.7	18"	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6642K11	00000
	7/32"-20.8	9"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K692	00000
	7/32"-20.8	18"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6642K14	00000
	1/4"-20	1 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K696	00000


	1/4"-20	3 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K697	000000
	1/4"-20	6 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K133	000000
	1/4"-40	1 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K694	00000
	1/4"-40	3 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K695	000000
	3/8"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K704	000000
	3/8"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K705	000000
	3/8"-20	3 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K703	000000
	3/8"-20	6 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K134	000000
	3/8"-40	3 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K702	000000
	3/8"-40	6 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K137	000000


	1/2"-8	3 ft.	Rounded Acme	1:1	1	0.125"	±0.0006"/1"	Brinell 160	90,000	6350K713	000000
	1/2"-8	6 ft.	Rounded Acme	1:1	1	0.125"	±0.0006"/1"	Brinell 160	90,000	6350K125	000000
	1/2"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K712	000000
	1/2"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K21	000000
	1/2"-20	3 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K711	000000
	1/2"-20	6 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K135	000000
	5/8"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K718	000000
	5/8"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K129	000000
	3/4"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K722	000000
	3/4"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K131	000000

Flange Nuts—Right-Hand Thread


Style A	Style B	Style C

Style B

Style C

Acetal—Acetal nuts have good wear and corrosion resistance.

Wear-Compensating Spring—Flange nuts with wear-compensating internal O-ring or wear-compensating spring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

					Flange
	Style	Thread Size	Lg.	Dia.	Dia.	Wd.	Ht.	Thk.	Thread Type	Speed Ratio	Bolt Circle Dia.	No. of Thread Starts	Travel Distance per Turn	Mounting Hole Ctr.-to-Ctr.	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	No. of Mounting Holes		Each
Acetal



		A	1/8"-20.8	1/2"	0.4"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.048"	39/64"	Not Rated	9,000 psi	25	2	6350K682	000000


		A	1/8"-41.7	1/2"	0.4"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.024"	39/64"	Not Rated	9,000 psi	25	2	6350K681	00000
		A	9/64"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.048"	39/64"	Not Rated	Not Rated	25	2	6642K22	00000
		A	9/64"-41.7	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.024"	39/64"	Not Rated	Not Rated	25	2	6642K21	00000
		A	7/32"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.048"	39/64"	Not Rated	Not Rated	25	2	6642K24	00000
		B	1/4"-20	1"	0.5"	1"	—	—	3/16"	Rounded Acme	1:1	3/4"	1	0.05"	—	Not Rated	9,700 psi	50	3	6350K171	00000
		B	1/4"-40	1"	0.5"	1"	—	—	3/16"	Rounded Acme	1:1	3/4"	1	0.025"	—	Not Rated	9,000 psi	50	3	6350K683	00000
		B	3/8"-10	1"	0.625"	1 7/64"	—	—	3/16"	Rounded Acme	1:1	7/8"	1	0.1"	—	Not Rated	9,700 psi	75	3	6350K33	00000
		B	3/8"-20	1"	0.625"	1 7/64"	—	—	3/16"	Rounded Acme	1:1	7/8"	1	0.05"	—	Not Rated	9,700 psi	75	3	6350K172	00000
		B	3/8"-40	1"	0.625"	1 7/64"	—	—	3/16"	Rounded Acme	1:1	7/8"	1	0.025"	—	Not Rated	9,700 psi	75	3	6350K175	00000
		B	1/2"-8	1 1/2"	0.75"	1 1/2"	—	—	3/16"	Rounded Acme	1:1	1 1/8"	1	0.125"	—	Not Rated	9,700 psi	150	3	6350K163	00000


		B	1/2"-10	1 1/2"	0.75"	1 1/2"	—	—	3/16"	Rounded Acme	1:1	1 1/8"	1	0.1"	—	Not Rated	9,700 psi	150	3	6350K41	00000
		B	1/2"-20	1 1/2"	0.75"	1 1/2"	—	—	3/16"	Rounded Acme	1:1	1 1/8"	1	0.05"	—	Not Rated	9,700 psi	150	3	6350K173	00000
		B	5/8"-10	1 1/2"	0.875"	1 1/2"	—	—	3/16"	Rounded Acme	1:1	1 3/16"	1	0.1"	—	Not Rated	9,700 psi	220	3	6350K167	00000
		B	3/4"-10	2"	1.125"	1 51/64"	—	—	1/4"	Rounded Acme	1:1	1 7/16"	1	0.1"	—	Not Rated	9,700 psi	350	3	6350K168	00000


		Acetal with Wear-Compensating Internal O-Ring



				A	9/64"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.048"	39/64"	Not Rated	Not Rated	5	2	6642K32	00000


				A	9/64"-41.7	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.024"	39/64"	Not Rated	Not Rated	5	2	6642K31	00000
				A	7/32"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	1:1	—	1	0.048"	39/64"	Not Rated	Not Rated	5	2	6642K34	00000


				Acetal with Wear-Compensating Spring



						B	3/4"-10	2 45/64"	1.563"	2 13/32"	—	—	5/16"	Rounded Acme	1:1	2"	1	0.1"	—	Not Rated	9,700 psi	150	3	6350K206	000000


						C	1/4"-20	1"	0.5"	1"	—	—	3/16"	Rounded Acme	1:1	3/4"	1	0.05"	—	Not Rated	9,700 psi	5	3	6350K208	00000
						C	3/8"-10	1 29/32"	0.703"	1 1/2"	—	—	3/16"	Rounded Acme	1:1	1 1/8"	1	0.1"	—	Not Rated	9,700 psi	10	3	6350K53	00000
						C	3/8"-20	1 29/32"	0.703"	1 1/2"	—	—	3/16"	Rounded Acme	1:1	1 1/8"	1	0.05"	—	Not Rated	9,700 psi	10	3	6350K209	00000
						C	3/8"-40	1 29/32"	0.703"	1 1/2"	—	—	3/16"	Rounded Acme	1:1	1 1/8"	1	0.025"	—	Not Rated	9,700 psi	10	3	6350K213	00000
						C	1/2"-8	2"	0.891"	1 39/64"	—	—	17/64"	Rounded Acme	1:1	1 1/4"	1	0.125"	—	Not Rated	9,700 psi	25	3	6350K201	00000
						C	1/2"-10	2"	0.891"	1 39/64"	—	—	17/64"	Rounded Acme	1:1	1 1/4"	1	0.1"	—	Not Rated	9,700 psi	25	3	6350K61	00000
						C	1/2"-20	2"	0.891"	1 39/64"	—	—	17/64"	Rounded Acme	1:1	1 1/4"	1	0.05"	—	Not Rated	9,700 psi	25	3	6350K211	00000
						C	5/8"-10	2"	1.063"	1 51/64"	—	—	17/64"	Rounded Acme	1:1	1 3/8"	1	0.1"	—	Not Rated	9,700 psi	35	3	6350K205	00000

Fast-Travel Precision Acme Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. The threads have a tight thread fit for accurate, repeatable starts and stops. Pair with a motor in automated motion and positioning applications. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.

Lead Screws—Right-Hand Thread

1018 Low-Carbon Steel—Carbon steel lead screws and flanges have good machinability.

Black-Oxide 4140 Alloy Steel—Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance.

304 Stainless Steel—304 stainless steel lead screws have good corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Thread Size	Lg.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
1018 Low-Carbon Steel



		1/4"-12	18"	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A978	000000


		1/4"-12	3 ft.	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A979	00000
		1/4"-16	18"	Acme	4:1	4	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A982	00000
		1/4"-16	3 ft.	Acme	4:1	4	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A983	00000
		3/8"-5	3 ft.	Acme	5:1	5	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A100	00000
		3/8"-5	6 ft.	Acme	5:1	5	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A200	00000
		3/8"-8	18"	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A986	00000
		3/8"-8	18"	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A987	00000
		3/8"-8	3 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A315	00000
		3/8"-8	3 ft.	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A303	00000
		3/8"-8	6 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A715	00000


		3/8"-8	6 ft.	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A703	00000
		3/8"-10	18"	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A989	00000
		3/8"-10	3 ft.	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A991	00000
		3/8"-12	18"	Acme	2:1	2	0.167"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	99030A995	00000
		3/8"-12	3 ft.	Acme	2:1	2	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A024	00000
		3/8"-12	6 ft.	Acme	2:1	2	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A124	00000
		1/2"-8	3 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A316	00000
		1/2"-8	3 ft.	Stub Acme	8:1	8	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A300	00000
		1/2"-8	6 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A716	00000
		1/2"-8	6 ft.	Stub Acme	8:1	8	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A400	00000


		1/2"-10	3 ft.	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A320	00000
		1/2"-10	3 ft.	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A304	00000
		1/2"-10	6 ft.	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A720	00000
		1/2"-10	6 ft.	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A704	00000
		5/8"-8	3 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A072	00000
		5/8"-8	6 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A172	00000
		3/4"-6	3 ft.	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A012	00000
		3/4"-6	6 ft.	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A112	00000
		3/4"-8	3 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A073	00000
		3/4"-8	3 ft.	Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A500	00000


		3/4"-8	6 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A173	000000
		3/4"-8	6 ft.	Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A600	00000
		1"-4	3 ft.	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A006	00000
		1"-4	6 ft.	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A106	000000
		1"-6	3 ft.	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A070	00000
		1"-6	6 ft.	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A970	000000
		1"-10	3 ft.	Acme	10:1	10	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A002	00000
		1"-10	6 ft.	Acme	10:1	10	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A102	000000
		1 1/2"-4	3 ft.	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A007	00000
		1 1/2"-4	6 ft.	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A107	000000


		Black-Oxide 4140 Alloy Steel



				1/4"-12	3 ft.	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A601	00000


				1/4"-12	6 ft.	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A101	000000
				3/8"-8	3 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A609	00000
				3/8"-8	3 ft.	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A607	00000
3/8"-8				6 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A008	000000
3/8"-8	6 ft.			Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A006	000000
1/2"-8	3 ft.			Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A623	00000
1/2"-8	6 ft.			Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A105	000000
1/2"-10	3 ft.			Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A629	00000
1/2"-10	3 ft.			Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A627	00000
1/2"-10	6 ft.			Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A022	000000


1/2"-10	6 ft.			Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A020	00000
3/4"-6	3 ft.			Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A617	00000
3/4"-6	6 ft.			Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A117	000000
1"-10	3 ft.			Acme	10:1	10	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A602	000000
1"-10	6 ft.			Acme	10:1	10	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A102	000000


304 Stainless Steel



				1/4"-12	18"	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A963	00000


				1/4"-12	3 ft.	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A964	00000
				1/4"-12	6 ft.	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A310	000000
				3/8"-8	18"	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A969	00000
				3/8"-8	18"	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A972	00000
				3/8"-8	3 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A971	00000
				3/8"-8	3 ft.	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A973	00000
				3/8"-8	6 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A330	000000
				3/8"-8	6 ft.	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A325	000000
				3/8"-10	18"	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A974	00000
				3/8"-10	3 ft.	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A975	00000


				3/8"-10	6 ft.	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A340	000000
				1/2"-8	3 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A978	00000
				1/2"-8	3 ft.	Stub Acme	8:1	8	1"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A979	000000
				1/2"-8	6 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A365	000000
				1/2"-8	6 ft.	Stub Acme	8:1	8	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A183	000000
				1/2"-10	3 ft.	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A981	00000
				1/2"-10	3 ft.	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A982	00000
				1/2"-10	6 ft.	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A380	000000
				1/2"-10	6 ft.	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A375	000000
				3/4"-8	3 ft.	Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A983	000000


				3/4"-8	6 ft.	Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A187	000000

Lead Screws—Left-Hand Thread

1018 Low-Carbon Steel—Carbon steel lead screws and flanges have good machinability.

Black-Oxide 4140 Alloy Steel—Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg., ft.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
1018 Low-Carbon Steel



	3/8"-12	3	Acme	2:1	2	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A424	000000


	3/8"-12	6	Acme	2:1	2	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A524	00000
	5/8"-8	3	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A472	00000
	5/8"-8	6	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A572	00000
	3/4"-6	3	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A412	00000
	3/4"-6	6	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A512	00000
	3/4"-8	3	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A473	00000
	3/4"-8	6	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A573	000000
	1"-4	3	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A406	00000
	1"-4	6	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A506	000000
	1"-6	3	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A470	00000


	1"-6	6	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A570	000000
	1"-10	3	Acme	10:1	10	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A402	000000
	1"-10	6	Acme	10:1	10	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A502	000000
	1 1/2"-4	3	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A407	000000
	1 1/2"-4	6	Acme	2:1	2	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A507	000000


	Black-Oxide 4140 Alloy Steel



			3/4"-6	3	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A717	00000


			3/4"-6	6	Acme	2:1	2	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A417	000000

Round Nuts—Right-Hand Thread

Iron—Iron nuts have good machinability and high strength.

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

PET—PET plastic nuts are lightweight and corrosion resistant.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap.	Temp., ° F		Each
Iron



	1/4"-12	3/4"	1.344"	Stub Acme	4:1	4	0.333"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A503	000000


	3/8"-8	3/4"	1.344"	Stub Acme	2:1	2	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A504	00000
	3/8"-8	3/4"	1.344"	Stub Acme	4:1	4	0.5"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A501	00000
	3/8"-10	3/4"	1.344"	Stub Acme	2:1	2	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A511	00000
	1/2"-8	1"	1.469"	Acme	2:1	2	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A505	00000
	1/2"-10	1"	1.469"	Acme	2:1	2	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A512	00000
	1/2"-10	1"	1.469"	Stub Acme	5:1	5	0.5"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A502	00000


	932 Bearing Bronze



			1/4"-12	3/4"	1.344"	Acme	4:1	4	0.333"	Acme Class 2C	Brinell 65	Not Rated	320 lb.	—	1343K113	00000


			3/8"-8	3/4"	1.344"	Acme	2:1	2	0.25"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K114	00000
			3/8"-8	3/4"	1.344"	Acme	4:1	4	0.5"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K111	00000
			3/8"-10	3/4"	1.344"	Acme	2:1	2	0.2"	Acme Class 2C	Brinell 65	Not Rated	700 lb.	—	1343K121	00000
			1/2"-8	1"	1.469"	Acme	2:1	2	0.25"	Acme Class 2C	Brinell 65	Not Rated	1,300 lb.	—	1343K15	00000
			1/2"-10	1"	1.469"	Acme	2:1	2	0.2"	Acme Class 2C	Brinell 65	Not Rated	1,300 lb.	—	1343K22	00000
			1/2"-10	1"	1.469"	Acme	5:1	5	0.5"	Acme Class 2C	Brinell 65	Not Rated	1,300 lb.	—	1343K112	00000


			PET



					1/4"-12	3/4"	1.344"	Acme	4:1	4	0.333"	Acme Class 2C	Not Rated	Not Rated	160 lb.	15 to 175	1349K105	00000


					3/8"-8	3/4"	1.344"	Acme	2:1	2	0.25"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K107	00000
					3/8"-8	3/4"	1.344"	Acme	4:1	4	0.5"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K101	00000
					3/8"-10	3/4"	1.344"	Acme	2:1	2	0.2"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	1349K118	00000
					1/2"-8	1"	1.469"	Acme	2:1	2	0.25"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	1349K15	00000
					1/2"-10	1"	1.469"	Acme	2:1	2	0.2"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	1349K22	00000
					1/2"-10	1"	1.469"	Acme	5:1	5	0.5"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	1349K103	00000

Round Nuts—Left-Hand Thread

932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.		Each
932 Bearing Bronze



	1/4"-12	3/4"	1.344"	Acme	4:1	4	0.333"	Acme Class 2C	Brinell 65	Not Rated	320	1343K213	000000


	3/8"-8	3/4"	1.344"	Acme	2:1	2	0.25"	Acme Class 2C	Brinell 65	Not Rated	700	1343K214	00000
	3/8"-8	3/4"	1.344"	Acme	4:1	4	0.5"	Acme Class 2C	Brinell 65	Not Rated	700	1343K211	00000
	3/8"-10	3/4"	1.344"	Acme	2:1	2	0.2"	Acme Class 2C	Brinell 65	Not Rated	700	1343K221	00000
	1/2"-10	1"	1.469"	Acme	5:1	5	0.5"	Acme Class 2C	Brinell 65	Not Rated	1,300	1343K212	00000

Externally Threaded Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

PET—PET plastic nuts are lightweight and corrosion resistant.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap.	Temp., ° F		Each
360 Brass



		1/4"-16	5/8"	0.688"	Acme	4:1	4	0.25"	9/16"-18	3/8"	Acme Class 2C	Brinell 130	Not Rated	300 lb.	—	95072A430	000000


		5/8"-8	1"	1.125"	Acme	2:1	2	0.25"	15/16"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	1,900 lb.	—	95072A321	00000
		3/4"-8	1 1/4"	1.125"	Acme	2:1	2	0.25"	1"-18	1/2"	Acme Class 2C	Brinell 130	Not Rated	2,800 lb.	—	95072A331	00000
		1"-4	1 1/2"	1.5"	Acme	2:1	2	0.5"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	5,000 lb.	—	95072A551	00000
		1"-6	1 1/2"	1.5"	Acme	2:1	2	0.333"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	5,000 lb.	—	95072A301	00000


		673 Bronze



				1/4"-12	5/8"	0.688"	Stub Acme	4:1	4	0.333"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A107	00000


				3/8"-8	5/8"	0.688"	Stub Acme	2:1	2	0.25"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A126	00000
				3/8"-8	5/8"	0.688"	Stub Acme	4:1	4	0.5"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A125	00000
				3/8"-10	5/8"	0.688"	Stub Acme	2:1	2	0.2"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A128	00000
				3/8"-12	5/8"	0.688"	Acme	2:1	2	0.167"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A771	00000
				1/2"-8	3/4"	1.125"	Acme	2:1	2	0.25"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A130	00000
				1/2"-8	3/4"	1.125"	Stub Acme	8:1	8	1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A420	00000
				1/2"-10	3/4"	1.125"	Acme	2:1	2	0.2"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A147	00000
				1/2"-10	3/4"	1.125"	Stub Acme	5:1	5	0.5"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A145	00000
				3/4"-6	1 1/4"	1.125"	Acme	2:1	2	0.333"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A601	00000
				3/4"-8	1 1/4"	1.125"	Acme	4:1	4	0.5"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A540	00000


				1"-10	1 1/2"	1.5"	Stub Acme	10:1	10	1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A511	00000
				1 1/2"-4	2 19/64"	2.125"	Acme	2:1	2	0.5"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	95072A561	000000


				PET



						1/4"-12	5/8"	0.688"	Acme	4:1	4	0.333"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	160 lb.	15 to 175	95075A207	00000


						3/8"-5	5/8"	0.688"	Acme	5:1	5	1"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	250 lb.	15 to 175	95075A101	00000
						3/8"-8	5/8"	0.688"	Acme	2:1	2	0.25"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	95075A226	00000
						3/8"-8	5/8"	0.688"	Acme	4:1	4	0.5"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	95075A225	00000
						3/8"-10	5/8"	0.688"	Acme	2:1	2	0.2"	9/16"-18	3/8"	Acme Class 2C	Not Rated	Not Rated	350 lb.	15 to 175	95075A228	00000
						1/2"-8	3/4"	1.125"	Acme	2:1	2	0.25"	15/16"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	95075A105	00000
						1/2"-10	3/4"	1.125"	Acme	2:1	2	0.2"	15/16"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	95075A247	00000
						1/2"-10	3/4"	1.125"	Acme	5:1	5	0.5"	15/16"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	650 lb.	15 to 175	95075A245	00000
						3/4"-8	1 1/4"	1.125"	Acme	4:1	4	0.5"	1"-18	1/2"	Acme Class 2C	Not Rated	Not Rated	1,450 lb.	15 to 175	95075A230	00000
						1"-4	1 1/2"	1.5"	Acme	2:1	2	0.5"	1 3/8"-16	1/2"	Acme Class 2C	Not Rated	Not Rated	2,500 lb.	15 to 175	95075A260	00000

Externally Threaded Nuts—Left-Hand Thread

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap.		Each
360 Brass



		5/8"-8	1"	1.125"	Acme	2:1	2	0.25"	15/16"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	1,900 lb.	95072A322	000000


		3/4"-8	1 1/4"	1.125"	Acme	2:1	2	0.25"	1"-18	1/2"	Acme Class 2C	Brinell 130	Not Rated	2,800 lb.	95072A332	00000
		1"-4	1 1/2"	1.5"	Acme	2:1	2	0.5"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	5,000 lb.	95072A552	00000
		1"-6	1 1/2"	1.5"	Acme	2:1	2	0.333"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	5,000 lb.	95072A302	00000


		673 Bronze



				3/8"-12	5/8"	0.688"	Acme	2:1	2	0.167"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A772	00000


				3/4"-6	1 1/4"	1.125"	Acme	2:1	2	0.333"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A602	00000
				1"-10	1 1/2"	1.5"	Stub Acme	10:1	10	1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A512	00000
				1 1/2"-4	2 19/64"	2.125"	Acme	2:1	2	0.5"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A562	000000

Flanges

Thread onto an externally threaded acme nut to create a custom flange nut.

1117 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

1215 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

303 Stainless Steel—303 stainless steel flanges have good corrosion resistance.

	Flange Dia.	Flange Thk.	Bolt Circle Dia.	Flange Hardness		Each
1117 Carbon Steel



	1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 156	95082A644	000000


	1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 156	95082A645	00000


	1215 Carbon Steel



			9/16"-18	1 39/64"	13/32"	1 1/8"	Not Rated	95082A641	00000


			15/16"-16	2 5/8"	17/32"	2 3/32"	Not Rated	95082A642	00000
			1"-18	2 5/8"	17/32"	2 3/32"	Not Rated	95082A643	00000


			303 Stainless Steel



					9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 140	1329K11	00000


					15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K12	00000
					1"-18	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K13	00000
					1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 140	1329K14	00000
					1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 140	1329K15	000000

Metric Fast-Travel Ultra-Precision Lead Screws and Nuts

Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts.


Style A	Style B	Style C	Style D	Style E	Style F

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size and number of thread starts.

Lead Screw—Right-Hand Thread

4140 Alloy Steel—Alloy steel lead screws are hard and strong.

303 Stainless Steel—303 stainless steel lead screws have good corrosion resistance.

304 Stainless Steel—304 stainless steel lead screws have good corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg., mm	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
4140 Alloy Steel



	M5 × 1.25 mm	100	Metric Rounded Trapezoidal	4:1	4	5	±0.089 mm/300 mm	Brinell 200	90,000	97783A150	000000


	M5 × 1.25 mm	175	Metric Rounded Trapezoidal	4:1	4	5	±0.089 mm/300 mm	Brinell 200	125,000	97783A160	00000
	M8 × 2 mm	200	Metric Rounded Trapezoidal	2:1	2	4	±0.089 mm/300 mm	Brinell 200	125,000	97783A170	00000
	M8 × 2 mm	300	Metric Rounded Trapezoidal	2:1	2	4	±0.089 mm/300 mm	Brinell 200	125,000	97783A180	00000


	303 Stainless Steel



			M2 × 0.5 mm	50	Metric Rounded Trapezoidal	2:1	2	1	±0.089 mm/300 mm	Brinell 160	90,000	97783A110	00000


			M2 × 0.5 mm	100	Metric Rounded Trapezoidal	2:1	2	1	±0.089 mm/300 mm	Brinell 160	90,000	97783A120	00000
			M4 × 1.25 mm	75	Metric Rounded Trapezoidal	8:1	8	10	±0.089 mm/300 mm	Brinell 160	90,000	97783A130	00000
			M4 × 1.25 mm	150	Metric Rounded Trapezoidal	8:1	8	10	±0.089 mm/300 mm	Brinell 160	90,000	97783A140	00000


			304 Stainless Steel



					M8 × 2.5 mm	250	Metric Rounded Trapezoidal	4:1	4	10	±0.1 mm/300 mm	Brinell 160	72,000	2391N24	00000


					M8 × 2.5 mm	500	Metric Rounded Trapezoidal	4:1	4	10	±0.1 mm/300 mm	Brinell 160	72,000	2391N25	00000
					M10 × 3 mm	250	Metric Rounded Trapezoidal	4:1	4	12	±0.1 mm/300 mm	Brinell 160	72,000	2391N26	00000
					M10 × 3 mm	500	Metric Rounded Trapezoidal	4:1	4	12	±0.1 mm/300 mm	Brinell 160	72,000	2391N27	00000
					M12 × 2.5 mm	250	Metric Rounded Trapezoidal	2:1	2	5	±0.1 mm/300 mm	Brinell 160	72,000	2391N28	00000
					M12 × 2.5 mm	500	Metric Rounded Trapezoidal	2:1	2	5	±0.1 mm/300 mm	Brinell 160	72,000	2391N29	00000
					M12 × 2.5 mm	1,000	Metric Rounded Trapezoidal	2:1	2	5	±0.1 mm/300 mm	Brinell 160	72,000	2391N31	000000
					M16 × 5 mm	250	Metric Rounded Trapezoidal	7:1	7	35	±0.1 mm/300 mm	Brinell 160	72,000	2391N32	00000
					M16 × 5 mm	500	Metric Rounded Trapezoidal	7:1	7	35	±0.1 mm/300 mm	Brinell 160	72,000	2391N33	000000
					M16 × 5 mm	1,000	Metric Rounded Trapezoidal	7:1	7	35	±0.1 mm/300 mm	Brinell 160	72,000	2391N34	000000
					M20 × 5 mm	500	Metric Rounded Trapezoidal	4:1	4	20	±0.1 mm/300 mm	Brinell 160	72,000	2391N35	000000


					M20 × 5 mm	1,000	Metric Rounded Trapezoidal	4:1	4	20	±0.1 mm/300 mm	Brinell 160	72,000	2391N36	000000
					M20 × 7.5 mm	500	Metric Rounded Trapezoidal	8:1	8	60	±0.1 mm/300 mm	Brinell 160	72,000	2391N37	000000
					M20 × 7.5 mm	1,000	Metric Rounded Trapezoidal	8:1	8	60	±0.1 mm/300 mm	Brinell 160	72,000	2391N38	000000


					17-4 PH Stainless Steel



							M2 × 0.4 mm	145	Metric Rounded Trapezoidal	2:1	2	0.75	±0.15 mm/300 mm	Rockwell C35	145,000	4537N101	000000


							M2 × 0.4 mm	145	Metric Rounded Trapezoidal	4:1	4	1.5	±0.15 mm/300 mm	Rockwell C35	145,000	4537N102	000000
							M2 × 0.4 mm	145	Metric Rounded Trapezoidal	8:1	8	3	±0.15 mm/300 mm	Rockwell C35	145,000	4537N103	000000
							M3 × 0.5 mm	145	Metric Rounded Trapezoidal	2:1	2	1	±0.15 mm/300 mm	Rockwell C35	145,000	4537N104	000000
							M3 × 0.5 mm	145	Metric Rounded Trapezoidal	6:1	6	3	±0.15 mm/300 mm	Rockwell C35	145,000	4537N105	000000
							M3 × 0.5 mm	145	Metric Rounded Trapezoidal	12:1	12	6	±0.15 mm/300 mm	Rockwell C35	145,000	4537N106	000000
							M4 × 1 mm	145	Metric Rounded Trapezoidal	4:1	4	4	±0.15 mm/300 mm	Rockwell C35	145,000	4537N107	000000
							M4 × 1 mm	145	Metric Rounded Trapezoidal	8:1	8	8	±0.15 mm/300 mm	Rockwell C35	145,000	4537N108	000000

Lead Screw with One Machinable End—Right-Hand Thread

Image of Product. Front orientation. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Lead Screw with One Machinable End—Right-Hand Thread.

Lead screws with one machinable end let you create your own custom connection to suit your application.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

				End, mm
	Thread Size	Lg., mm	Thread Type	Dia.	Lg.	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
17-4 PH Stainless Steel



		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	7	25	2:1	2	0.75	±0.15 mm/300 mm	Rockwell C35	145,000	4537N121	0000000


		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	7	25	4:1	4	1.5	±0.15 mm/300 mm	Rockwell C35	145,000	4537N122	000000
		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	7	25	8:1	8	3	±0.15 mm/300 mm	Rockwell C35	145,000	4537N123	000000
		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7	25	2:1	2	1	±0.15 mm/300 mm	Rockwell C35	145,000	4537N124	000000
		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7	25	6:1	6	3	±0.15 mm/300 mm	Rockwell C35	145,000	4537N125	000000
		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7	25	12:1	12	6	±0.15 mm/300 mm	Rockwell C35	145,000	4537N126	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	7	25	4:1	4	4	±0.15 mm/300 mm	Rockwell C35	145,000	4537N127	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	7	25	8:1	8	8	±0.15 mm/300 mm	Rockwell C35	145,000	4537N128	000000

Lead Screw with One Coupling End—Right-Hand Thread

Lead screws with one coupling end connect directly with your shaft without extra machining. Torque down the locknut once inserted.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

				End, mm
	Thread Size	Lg., mm	Thread Type	Dia.	Lg.	For Shaft Dia.	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
17-4 PH Stainless Steel



		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	6.5	15	2	2:1	2	0.75	±0.15 mm/300 mm	Rockwell C35	145,000	4537N141	0000000


		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	6.5	15	2	4:1	4	1.5	±0.15 mm/300 mm	Rockwell C35	145,000	4537N142	000000
		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	6.5	15	2	8:1	8	3	±0.15 mm/300 mm	Rockwell C35	145,000	4537N143	000000
		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7.5	15.5	3	2:1	2	1	±0.15 mm/300 mm	Rockwell C35	145,000	4537N144	000000
		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7.5	15.5	3	6:1	6	3	±0.15 mm/300 mm	Rockwell C35	145,000	4537N145	000000
		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7.5	15.5	3	12:1	12	6	±0.15 mm/300 mm	Rockwell C35	145,000	4537N146	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	8.5	15.5	4	4:1	4	4	±0.15 mm/300 mm	Rockwell C35	145,000	4537N147	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	8.5	15.5	4	8:1	8	8	±0.15 mm/300 mm	Rockwell C35	145,000	4537N148	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	9.5	15.5	5	4:1	4	4	±0.15 mm/300 mm	Rockwell C35	145,000	4537N149	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	9.5	15.5	5	8:1	8	8	±0.15 mm/300 mm	Rockwell C35	145,000	4537N151	000000

Round Nuts—Right-Hand Thread

Style A

Acetal—Acetal nuts have good wear and corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Tensile Strength, psi	Dynamic Thrust Load Cap.	Temp., ° F		Each
Acetal



	A	M8 × 2.5 mm	15/32"	0.709"	Metric Rounded Trapezoidal	4:1	4	10	Durometer 74D	10,000	Not Rated	-40 to 185	2391N17	000000


	A	M10 × 3 mm	25/32"	0.866"	Metric Rounded Trapezoidal	4:1	4	12	Durometer 74D	10,000	Not Rated	-40 to 185	2391N18	00000
	A	M12 × 2.5 mm	15/16"	1.024"	Metric Rounded Trapezoidal	2:1	2	5	Durometer 74D	10,000	Not Rated	-40 to 185	2391N19	00000
	A	M16 × 5 mm	1 17/64"	1.417"	Metric Rounded Trapezoidal	7:1	7	35	Durometer 74D	10,000	Not Rated	-40 to 185	2391N21	00000
	A	M20 × 5 mm	1 37/64"	1.772"	Metric Rounded Trapezoidal	4:1	4	20	Durometer 74D	10,000	Not Rated	-40 to 185	2391N22	00000
	A	M20 × 7.5 mm	1 37/64"	1.772"	Metric Rounded Trapezoidal	8:1	8	60	Durometer 74D	10,000	Not Rated	-40 to 185	2391N23	00000

Externally Threaded Nuts—Right-Hand Thread


Style B	Style C

Acetal—Acetal nuts have good wear and corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

												External Thread
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	Hex Wd.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Size	Lg.	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	Temp., ° F		Each
Acetal



		B	M2 × 0.5 mm	11/16"	—	—	0.297"	7/16"	Metric Rounded Trapezoidal	2:1	2	1	3/8"-24	3/16"	Not Rated	8,000 psi	10	-40 to 185	97783A190	000000


		B	M4 × 1.25 mm	11/16"	—	—	0.297"	7/16"	Metric Rounded Trapezoidal	8:1	8	10	3/8"-24	3/16"	Not Rated	8,000 psi	25	-40 to 185	97783A210	00000
		B	M5 × 1.25 mm	11/16"	—	—	0.297"	7/16"	Metric Rounded Trapezoidal	4:1	4	5	3/8"-24	3/16"	Not Rated	8,000 psi	25	-40 to 185	97783A220	00000
		B	M8 × 2 mm	1"	—	—	0.548"	11/16"	Metric Rounded Trapezoidal	2:1	2	4	5/8"-18	1/4"	Not Rated	8,000 psi	75	-40 to 185	97783A230	00000


		PEEK



				C	M2 × 0.4 mm	5/16"	0.22"	0.197"	—	—	Metric Rounded Trapezoidal	2:1	2	0.75	M5 × 0.8 mm	9/64"	Durometer 83D	Not Rated	2	—	4537N161	00000


				C	M2 × 0.4 mm	5/16"	0.22"	0.197"	—	—	Metric Rounded Trapezoidal	4:1	4	1.5	M5 × 0.8 mm	9/64"	Durometer 83D	Not Rated	2	—	4537N162	00000
				C	M2 × 0.4 mm	5/16"	0.22"	0.197"	—	—	Metric Rounded Trapezoidal	8:1	8	3	M5 × 0.8 mm	9/64"	Durometer 83D	Not Rated	2	—	4537N163	00000
				C	M3 × 0.5 mm	13/32"	0.311"	0.276"	—	—	Metric Rounded Trapezoidal	2:1	2	1	M7 × 0.75 mm	5/32"	Durometer 83D	Not Rated	4	—	4537N164	00000
				C	M3 × 0.5 mm	13/32"	0.311"	0.276"	—	—	Metric Rounded Trapezoidal	6:1	6	3	M7 × 0.75 mm	5/32"	Durometer 83D	Not Rated	4	—	4537N165	00000
				C	M4 × 1 mm	1/2"	0.402"	0.354"	—	—	Metric Rounded Trapezoidal	4:1	4	4	M9 × 1 mm	13/64"	Durometer 83D	Not Rated	4	—	4537N166	00000
				C	M4 × 1 mm	1/2"	0.402"	0.354"	—	—	Metric Rounded Trapezoidal	8:1	8	8	M9 × 1 mm	13/64"	Durometer 83D	Not Rated	10	—	4537N167	00000

Flange Nuts—Right-Hand Thread


Style D	Style E	Style F


Style D	Style E	Style F

Acetal—Acetal nuts have good wear and corrosion resistance.

Wear-Compensating Internal O-Ring—Flange nuts with a wear-compensating internal O-ring resist backlash to keep the nuts in place and maintain a tight fit even when their threads begin to wear. They’re often used in 3D printing and robotic applications.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

					Flange
	Style	Thread Size	Lg.	Dia.	Dia.	Wd.	Ht.	Thk.	Thread Type	Speed Ratio	Bolt Circle Dia.	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Tensile Strength	Dynamic Thrust Load Cap.	No. of Mounting Holes	Temp., ° F		Each
Acetal



		D	M2 × 0.5 mm	1/2"	0.297"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	2:1	39/64"	2	1	Not Rated	8,000 psi	10 lb.	2	-40 to 185	97783A240	000000


		D	M4 × 1.25 mm	1/2"	0.297"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	8:1	39/64"	8	10	Not Rated	8,000 psi	25 lb.	2	-40 to 185	97783A250	00000
		D	M5 × 1.25 mm	1/2"	0.297"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	4:1	39/64"	4	5	Not Rated	8,000 psi	25 lb.	2	-40 to 185	97783A260	00000
		E	M8 × 2 mm	3/4"	0.548"	1 1/8"	—	—	3/16"	Metric Rounded Trapezoidal	2:1	7/8"	2	4	Not Rated	8,000 psi	75 lb.	3	-40 to 185	97783A270	00000
		F	M8 × 2.5 mm	25/32"	0.787"	1 27/64"	—	—	5/16"	Metric Rounded Trapezoidal	4:1	1 7/64"	4	10	Durometer 74D	10,000 psi	Not Rated	6	-40 to 185	2391N11	00000
		F	M10 × 3 mm	63/64"	0.984"	1 21/32"	—	—	25/64"	Metric Rounded Trapezoidal	4:1	1 11/32"	4	12	Durometer 74D	10,000 psi	Not Rated	6	-40 to 185	2391N12	00000
		F	M12 × 2.5 mm	1 3/8"	1.102"	1 57/64"	—	—	15/32"	Metric Rounded Trapezoidal	2:1	1 1/2"	2	5	Durometer 74D	10,000 psi	Not Rated	6	-40 to 185	2391N13	00000
		F	M16 × 5 mm	1 3/8"	1.102"	1 57/64"	—	—	15/32"	Metric Rounded Trapezoidal	7:1	1 1/2"	7	35	Durometer 74D	10,000 psi	Not Rated	6	-40 to 185	2391N14	00000
		F	M20 × 5 mm	1 47/64"	1.26"	2 11/64"	—	—	15/32"	Metric Rounded Trapezoidal	4:1	1 49/64"	4	20	Durometer 74D	10,000 psi	Not Rated	6	-40 to 185	2391N15	000000
		F	M20 × 7.5 mm	1 47/64"	1.26"	2 11/64"	—	—	15/32"	Metric Rounded Trapezoidal	8:1	1 49/64"	8	60	Durometer 74D	10,000 psi	Not Rated	6	-40 to 185	2391N16	000000


		PEEK



				D	M2 × 0.4 mm	9/32"	0.209"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	2:1	11/32"	2	0.75	Durometer 83D	Not Rated	2 lb.	2	—	4537N181	00000


				D	M2 × 0.4 mm	9/32"	0.209"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	4:1	11/32"	4	1.5	Durometer 83D	Not Rated	2 lb.	2	—	4537N182	00000
				D	M2 × 0.4 mm	9/32"	0.209"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	8:1	11/32"	8	3	Durometer 83D	Not Rated	2 lb.	2	—	4537N183	00000
				D	M3 × 0.5 mm	21/64"	0.295"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	2:1	15/32"	2	1	Durometer 83D	Not Rated	4 lb.	2	—	4537N184	00000
				D	M3 × 0.5 mm	21/64"	0.295"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	6:1	15/32"	6	3	Durometer 83D	Not Rated	4 lb.	2	—	4537N185	00000
				D	M3 × 0.5 mm	21/64"	0.295"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	12:1	15/32"	12	6	Durometer 83D	Not Rated	4 lb.	2	—	4537N186	00000
				D	M4 × 1 mm	13/32"	0.354"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	4:1	19/32"	4	4	Durometer 83D	Not Rated	10 lb.	2	—	4537N187	00000
				D	M4 × 1 mm	13/32"	0.354"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	8:1	19/32"	8	8	Durometer 83D	Not Rated	10 lb.	2	—	4537N188	00000


				PEEK with Wear-Compensating Internal O-Ring



						D	M2 × 0.4 mm	5/16"	0.228"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	2:1	11/32"	2	0.75	Durometer 83D	Not Rated	1 lb.	2	—	4537N201	00000


						D	M2 × 0.4 mm	5/16"	0.228"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	4:1	11/32"	4	1.5	Durometer 83D	Not Rated	1 lb.	2	—	4537N202	00000
						D	M2 × 0.4 mm	5/16"	0.228"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	8:1	11/32"	8	3	Durometer 83D	Not Rated	1 lb.	2	—	4537N203	00000
						D	M3 × 0.5 mm	25/64"	0.315"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	2:1	15/32"	2	1	Durometer 83D	Not Rated	2 lb.	2	—	4537N204	00000
						D	M3 × 0.5 mm	25/64"	0.315"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	6:1	15/32"	6	3	Durometer 83D	Not Rated	2 lb.	2	—	4537N205	00000
						D	M3 × 0.5 mm	25/64"	0.315"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	12:1	15/32"	12	6	Durometer 83D	Not Rated	2 lb.	2	—	4537N206	00000
						D	M4 × 1 mm	31/64"	0.406"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	4:1	19/32"	4	4	Durometer 83D	Not Rated	4 lb.	2	—	4537N207	00000
						D	M4 × 1 mm	31/64"	0.406"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	8:1	19/32"	8	8	Durometer 83D	Not Rated	4 lb.	2	—	4537N208	00000

Metric Ultra-Precision Lead Screws and Nuts


	Style A	Style B	Style C	Style D

Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread size, thread type, thread size, thread pitch, and number of thread starts.

Lead Screw—Right-Hand Thread

4140 Alloy Steel—Alloy steel lead screws are hard and strong.

303 Stainless Steel—303 stainless steel lead screws have good corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg., mm	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
4140 Alloy Steel



	M8 × 1.5 mm	100	Metric Rounded Trapezoidal	1:1	1	1.5	±0.089 mm/300 mm	Brinell 200	125,000	7549K55	000000


	M8 × 1.5 mm	200	Metric Rounded Trapezoidal	1:1	1	1.5	±0.089 mm/300 mm	Brinell 200	125,000	7549K56	00000
	M8 × 1.5 mm	300	Metric Rounded Trapezoidal	1:1	1	1.5	±0.089 mm/300 mm	Brinell 200	125,000	7549K57	00000


	303 Stainless Steel



			M2 × 0.5 mm	50	Metric Rounded Trapezoidal	1:1	1	0.5	±0.089 mm/300 mm	Brinell 160	90,000	7549K51	00000


			M2 × 0.5 mm	100	Metric Rounded Trapezoidal	1:1	1	0.5	±0.089 mm/300 mm	Brinell 160	90,000	7549K52	00000
			M4 × 0.3 mm	75	Metric Rounded Trapezoidal	1:1	1	0.3	±0.089 mm/300 mm	Brinell 160	90,000	7549K53	00000
			M4 × 0.3 mm	150	Metric Rounded Trapezoidal	1:1	1	0.3	±0.089 mm/300 mm	Brinell 160	90,000	7549K54	00000


			17-4 PH Stainless Steel



					M2 × 0.4 mm	145	Metric Rounded Trapezoidal	1:1	1	0.375	±0.15 mm/300 mm	Rockwell C35	145,000	90500A110	000000


					M3 × 0.5 mm	145	Metric Rounded Trapezoidal	1:1	1	0.5	±0.15 mm/300 mm	Rockwell C35	145,000	90500A120	000000
					M4 × 1 mm	145	Metric Rounded Trapezoidal	1:1	1	1	±0.15 mm/300 mm	Rockwell C35	145,000	90500A130	000000

Lead Screw with One Machinable End—Right-Hand Thread

Image of Product. Front orientation. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Lead Screw with One Machinable End—Right-Hand Thread.

Lead screws with one machinable end let you create your own custom connection to suit your application.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

				End, mm
	Thread Size	Lg., mm	Thread Type	Dia.	Lg.	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
17-4 PH Stainless Steel



		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	7	25	1:1	1	0.375	±0.15 mm/300 mm	Rockwell C35	145,000	90500A140	0000000


		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7	25	1:1	1	0.5	±0.15 mm/300 mm	Rockwell C35	145,000	90500A150	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	7	25	1:1	1	1	±0.15 mm/300 mm	Rockwell C35	145,000	90500A160	000000

Lead Screw with One Coupling End—Right-Hand Thread

Image of Product. Front orientation. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Lead Screw with One Coupling End—Right-Hand Thread.

Lead screws with one coupling end connect directly with your shaft without extra machining. Torque down the locknut once inserted.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

				End, mm
	Thread Size	Lg., mm	Thread Type	Dia.	Lg.	For Shaft Dia.	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
17-4 PH Stainless Steel



		M2 × 0.4 mm	150	Metric Rounded Trapezoidal	6.5	15	2	1:1	1	0.375	±0.15 mm/300 mm	Rockwell C35	145,000	90500A170	0000000


		M3 × 0.5 mm	150	Metric Rounded Trapezoidal	7.5	15.5	3	1:1	1	0.5	±0.15 mm/300 mm	Rockwell C35	145,000	90500A180	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	8.5	15.5	4	1:1	1	1	±0.15 mm/300 mm	Rockwell C35	145,000	90500A190	000000
		M4 × 1 mm	150	Metric Rounded Trapezoidal	9.5	15.5	5	1:1	1	1	±0.15 mm/300 mm	Rockwell C35	145,000	90500A210	000000

Externally Threaded Nuts—Right-Hand Thread


Style A	Style B

Acetal—Acetal nuts have good wear and corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

												External Thread
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	Hex Wd.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Size	Lg.	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	Temp., ° F		Each
Acetal



		A	M2 × 0.5 mm	11/16"	—	—	0.297"	7/16"	Metric Rounded Trapezoidal	1:1	1	0.5	3/8"-24	3/16"	Not Rated	8,000 psi	10	-40 to 185	7549K58	000000


		A	M4 × 0.3 mm	11/16"	—	—	0.297"	7/16"	Metric Rounded Trapezoidal	1:1	1	0.3	3/8"-24	3/16"	Not Rated	8,000 psi	25	-40 to 185	7549K59	00000
		A	M8 × 1.5 mm	1"	—	—	0.548"	11/16"	Metric Rounded Trapezoidal	1:1	1	1.5	5/8"-18	1/4"	Not Rated	8,000 psi	75	-40 to 185	7549K61	00000


		PEEK



				B	M2 × 0.4 mm	5/16"	0.22"	0.197"	—	—	Metric Rounded Trapezoidal	1:1	1	0.375	M5 × 0.8 mm	9/64"	Durometer 83D	Not Rated	2	—	90500A220	00000


				B	M3 × 0.5 mm	13/32"	0.311"	0.276"	—	—	Metric Rounded Trapezoidal	1:1	1	0.5	M7 × 0.75 mm	5/32"	Durometer 83D	Not Rated	5	—	90500A230	00000
				B	M4 × 1 mm	1/2"	0.402"	0.354"	—	—	Metric Rounded Trapezoidal	1:1	1	1	M9 × 1 mm	13/64"	Durometer 83D	Not Rated	10	—	90500A240	00000

Flange Nuts—Right-Hand Thread


Style C	Style D

Style C

Style D

Acetal—Acetal nuts have good wear and corrosion resistance.

Wear-Compensating Internal O-Ring—Flange nuts with wear-compensating internal O-ring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

					Flange
	Style	Thread Size	Lg.	Dia.	Dia.	Wd.	Ht.	Thk.	Thread Type	Speed Ratio	Bolt Circle Dia.	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	No. of Mounting Holes	Temp., ° F		Each
Acetal



		C	M2 × 0.5 mm	1/2"	0.297"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	1:1	39/64"	1	0.5	Not Rated	8,000 psi	10	2	-40 to 185	7549K62	000000


		C	M4 × 0.3 mm	1/2"	0.297"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	1:1	39/64"	1	0.3	Not Rated	8,000 psi	25	2	-40 to 185	7549K63	00000
		D	M8 × 1.5 mm	3/4"	0.548"	1 1/8"	—	—	3/16"	Metric Rounded Trapezoidal	1:1	7/8"	1	1.5	Not Rated	8,000 psi	75	3	-40 to 185	7549K64	00000


		PEEK



				C	M2 × 0.4 mm	9/32"	0.209"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	1:1	11/32"	1	0.375	Durometer 83D	Not Rated	2	2	—	90500A250	00000


				C	M3 × 0.5 mm	21/64"	0.295"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	1:1	15/32"	1	0.5	Durometer 83D	Not Rated	5	2	—	90500A260	00000
				C	M4 × 1 mm	13/32"	0.354"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	1:1	19/32"	1	1	Durometer 83D	Not Rated	10	2	—	90500A270	00000


				PEEK with Wear-Compensating Internal O-Ring



						C	M2 × 0.4 mm	5/16"	0.228"	—	15/32"	15/64"	5/64"	Metric Rounded Trapezoidal	1:1	11/32"	1	0.375	Durometer 83D	Not Rated	1	2	—	90500A280	000000


						C	M3 × 0.5 mm	25/64"	0.315"	—	39/64"	5/16"	3/32"	Metric Rounded Trapezoidal	1:1	15/32"	1	0.5	Durometer 83D	Not Rated	2	2	—	90500A290	000000
						C	M4 × 1 mm	31/64"	0.406"	—	3/4"	13/32"	1/8"	Metric Rounded Trapezoidal	1:1	19/32"	1	1	Durometer 83D	Not Rated	5	2	—	90500A310	000000

Fast-Travel Ultra-Precision Lead Screws and Nuts


	Style A	Style B	Style C

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. All components are corrosion resistant for use in harsh environments. To ensure compatibility, select components that have the same thread type, thread size, and number of thread starts.

Lead Screws—Right-Hand Thread

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
303 Stainless Steel



	9/64"-20.8	18"	Rounded Acme	2:1	2	0.096"	±0.0006"/1"	Brinell 160	90,000	6642K13	000000


	5/32"-21.3	18"	Acme	2:1	2	0.094"	±0.0006"/1"	Brinell 160	90,000	6642K15	00000
	3/16"-42.7	18"	Rounded Acme	16:1	16	0.375"	±0.0006"/1"	Brinell 160	90,000	6642K47	00000
	7/32"-20.8	9"	Rounded Acme	4:1	4	0.192"	±0.0006"/1"	Brinell 160	90,000	6350K693	00000
	7/32"-20.8	18"	Rounded Acme	4:1	4	0.192"	±0.0006"/1"	Brinell 160	90,000	6642K16	00000
	1/4"-8	3 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K701	000000
	1/4"-8	6 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K12	000000
	1/4"-16	3 ft.	Rounded Acme	4:1	4	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K699	000000
	1/4"-16	6 ft.	Rounded Acme	4:1	4	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K11	000000
	1/4"-20	3 ft.	Rounded Acme	2:1	2	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K698	00000
	1/4"-20	6 ft.	Rounded Acme	2:1	2	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K128	000000


	3/8"-5	3 ft.	Rounded Acme	5:1	5	1"	±0.0006"/1"	Brinell 160	90,000	6350K709	000000
	3/8"-5	6 ft.	Rounded Acme	5:1	5	1"	±0.0006"/1"	Brinell 160	90,000	6350K16	000000
	3/8"-8	3 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K707	000000
	3/8"-8	3 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K708	000000
	3/8"-8	6 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K15	000000
	3/8"-10	3 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K706	000000
	3/8"-10	6 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K14	000000
	3/8"-12	6 ft.	Rounded Acme	3:1	3	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K113	000000
	1/2"-8	3 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K715	000000
	1/2"-8	3 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K716	000000


	1/2"-8	3 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K717	000000
	1/2"-8	6 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K115	000000
	1/2"-8	6 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K23	000000
	1/2"-8	6 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K24	000000
	1/2"-10	3 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K714	000000
	1/2"-10	6 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K22	000000
	5/8"-6	3 ft.	Rounded Acme	12:1	12	2"	±0.0006"/1"	Brinell 160	90,000	6350K721	000000
	5/8"-6	6 ft.	Rounded Acme	12:1	12	2"	±0.0006"/1"	Brinell 160	90,000	6350K102	000000
	5/8"-8	3 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K719	000000
	5/8"-8	6 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K107	000000


	3/4"-8	3 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K723	000000
	3/4"-8	3 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K724	000000
	3/4"-8	6 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K25	000000
	3/4"-8	6 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K725	000000

Flange Nuts—Right-Hand Thread


Style A	Style B	Style C

Style B

Style C

Acetal—Acetal nuts have good wear and corrosion resistance.

Wear-Compensating Internal O-Ring and Wear-Compensating Spring—Flange nuts with wear-compensating internal O-ring or wear-compensating spring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

					Flange
	Style	Thread Size	Lg.	Dia.	Dia.	Wd.	Ht.	Thk.	Thread Type	Speed Ratio	Bolt Circle Dia.	No. of Thread Starts	Travel Distance per Turn	Mounting Hole Ctr.-to-Ctr.	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	No. of Mounting Holes		Each
Acetal



		A	9/64"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	2:1	—	2	0.096"	39/64"	Not Rated	Not Rated	25	2	6642K23	000000


		A	5/32"-21.3	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	2:1	—	2	0.094"	39/64"	Not Rated	Not Rated	25	2	6642K25	00000
		A	3/16"-42.7	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	16:1	—	16	0.375"	39/64"	Not Rated	Not Rated	25	2	6642K57	00000
		A	7/32"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	4:1	—	4	0.192"	39/64"	Not Rated	Not Rated	25	2	6642K26	00000
		B	1/4"-8	1"	0.5"	1"	—	—	3/16"	Rounded Acme	8:1	3/4"	8	1"	—	Not Rated	9,700 psi	50	3	6350K32	00000
		B	1/4"-16	1"	0.5"	1"	—	—	3/16"	Rounded Acme	4:1	3/4"	4	0.25"	—	Not Rated	9,700 psi	50	3	6350K31	00000
		B	1/4"-20	1"	0.5"	1"	—	—	3/16"	Rounded Acme	2:1	3/4"	2	0.1"	—	Not Rated	9,700 psi	50	3	6350K166	00000
		B	3/8"-5	1"	0.625"	1 7/64"	—	—	3/16"	Rounded Acme	5:1	7/8"	5	1"	—	Not Rated	9,700 psi	75	3	6350K36	00000
		B	3/8"-8	1"	0.625"	1 7/64"	—	—	3/16"	Rounded Acme	4:1	7/8"	4	0.5"	—	Not Rated	9,700 psi	75	3	6350K35	00000
		B	3/8"-10	1"	0.625"	1 7/64"	—	—	3/16"	Rounded Acme	2:1	7/8"	2	0.2"	—	Not Rated	9,700 psi	75	3	6350K34	00000
		B	3/8"-12	1"	0.625"	1 7/64"	—	—	3/16"	Rounded Acme	3:1	7/8"	3	0.25"	—	Not Rated	9,700 psi	75	3	6350K151	00000


		B	1/2"-8	1 1/2"	0.75"	1 1/2"	—	—	3/16"	Rounded Acme	2:1	1 1/8"	2	0.25"	—	Not Rated	9,700 psi	150	3	6350K153	00000
		B	1/2"-8	1 1/2"	0.75"	1 1/2"	—	—	3/16"	Rounded Acme	4:1	1 1/8"	4	0.5"	—	Not Rated	9,700 psi	150	3	6350K43	00000
		B	1/2"-8	1 1/2"	0.75"	1 1/2"	—	—	3/16"	Rounded Acme	8:1	1 1/8"	8	1"	—	Not Rated	9,700 psi	150	3	6350K44	00000
		B	1/2"-10	1 1/2"	0.75"	1 1/2"	—	—	3/16"	Rounded Acme	2:1	1 1/8"	2	0.2"	—	Not Rated	9,700 psi	150	3	6350K42	00000
		B	5/8"-6	1 1/2"	0.875"	1 1/2"	—	—	3/16"	Rounded Acme	12:1	1 3/16"	12	2"	—	Not Rated	9,700 psi	220	3	6350K139	00000
		B	5/8"-8	1 1/2"	0.875"	1 1/2"	—	—	3/16"	Rounded Acme	4:1	1 3/16"	4	0.5"	—	Not Rated	9,700 psi	220	3	6350K145	00000
		B	3/4"-8	2"	1.125"	1 3/4"	—	—	1/4"	Rounded Acme	8:1	1 7/16"	8	1"	—	Not Rated	9,000 psi	350	3	6350K684	00000
		B	3/4"-8	2"	1.125"	1 51/64"	—	—	1/4"	Rounded Acme	2:1	1 7/16"	2	0.25"	—	Not Rated	9,700 psi	350	3	6350K45	00000


		Acetal with Wear-Compensating Internal O-Ring



				A	9/64"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	2:1	—	2	0.096"	39/64"	Not Rated	Not Rated	5	2	6642K33	00000


				A	5/32"-21.3	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	2:1	—	2	0.094"	39/64"	Not Rated	Not Rated	5	2	6642K35	00000
				A	3/16"-42.7	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	16:1	—	16	0.375"	39/64"	Not Rated	Not Rated	5	2	6642K67	00000
				A	7/32"-20.8	1/2"	0.406"	—	3/4"	13/32"	1/8"	Rounded Acme	4:1	—	4	0.192"	39/64"	Not Rated	Not Rated	5	2	6642K36	00000


				Acetal with Wear-Compensating Spring



						B	3/4"-8	2 45/64"	1.563"	2 13/32"	—	—	5/16"	Rounded Acme	2:1	2"	2	0.25"	—	Not Rated	9,700 psi	150	3	6350K65	000000


						C	1/4"-8	1"	0.5"	1"	—	—	3/16"	Rounded Acme	8:1	3/4"	8	1"	—	Not Rated	9,700 psi	5	3	6350K52	00000
						C	1/4"-16	1"	0.5"	1"	—	—	3/16"	Rounded Acme	4:1	3/4"	4	0.25"	—	Not Rated	9,700 psi	5	3	6350K51	00000
						C	1/4"-20	1"	0.5"	1"	—	—	3/16"	Rounded Acme	2:1	3/4"	2	0.1"	—	Not Rated	9,700 psi	5	3	6350K204	00000
						C	3/8"-5	1 29/32"	0.703"	1 1/2"	—	—	3/16"	Rounded Acme	5:1	1 1/8"	5	1"	—	Not Rated	9,700 psi	10	3	6350K56	00000
						C	3/8"-8	1 29/32"	0.703"	1 1/2"	—	—	3/16"	Rounded Acme	4:1	1 1/8"	4	0.5"	—	Not Rated	9,700 psi	10	3	6350K55	00000
						C	3/8"-10	1 29/32"	0.703"	1 1/2"	—	—	3/16"	Rounded Acme	2:1	1 1/8"	2	0.2"	—	Not Rated	9,700 psi	10	3	6350K54	00000
						C	3/8"-12	1 29/32"	0.703"	1 1/2"	—	—	3/16"	Rounded Acme	3:1	1 1/8"	3	0.25"	—	Not Rated	9,700 psi	10	3	6350K188	00000
						C	1/2"-8	2"	0.891"	1 39/64"	—	—	17/64"	Rounded Acme	2:1	1 1/4"	2	0.25"	—	Not Rated	9,700 psi	25	3	6350K191	00000
						C	1/2"-8	2"	0.891"	1 39/64"	—	—	17/64"	Rounded Acme	4:1	1 1/4"	4	0.5"	—	Not Rated	9,700 psi	25	3	6350K63	00000
						C	1/2"-8	2"	0.891"	1 39/64"	—	—	17/64"	Rounded Acme	8:1	1 1/4"	8	1"	—	Not Rated	9,700 psi	25	3	6350K64	00000


						C	1/2"-10	2"	0.891"	1 39/64"	—	—	17/64"	Rounded Acme	2:1	1 1/4"	2	0.2"	—	Not Rated	9,700 psi	25	3	6350K62	00000
						C	5/8"-6	2"	1.063"	1 51/64"	—	—	17/64"	Rounded Acme	12:1	1 3/8"	12	2"	—	Not Rated	9,700 psi	35	3	6350K177	00000
						C	5/8"-8	2"	1.063"	1 51/64"	—	—	17/64"	Rounded Acme	4:1	1 3/8"	4	0.5"	—	Not Rated	9,700 psi	35	3	6350K183	00000

Self-Reversing Lead Screws and Nuts

A crisscross thread pattern allows you to drive the nut back and forth without changing the lead screw's direction of rotation. When the nut reaches one end of the lead screw, it changes direction and travels back to the other end. Also known as diamond lead screws, they're sometimes used to guide cable and wire as it's spooled on a reel.

Right-Hand and Left-Hand Thread

Image of Attribute. Front orientation. Contains Annotated. Self-Reversing Lead Screws and Nuts.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

			Lead Screw			Square Nut
	Screw Dia.	Thread Type	Lg.	Travel Lg.	Hardness	Overall Ht.	Canter Ht.	Hardness	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Tensile Strength, psi	Dynamic Thrust Load Cap., lb.	Temp., ° F		Each
1144 Carbon Steel Lead Screws with Aluminum Square Nuts



		0.75"	Diamond	16 7/8"	5 13/16"	Rockwell C27	1 7/8"	11/16"	Brinell 60	1	0.75"	±0.007"/1"	130,000	100	-50 to 350	97825A110	000000000


		0.75"	Diamond	19 7/8"	8 13/16"	Rockwell C27	1 7/8"	11/16"	Brinell 60	1	0.75"	±0.007"/1"	130,000	100	-50 to 350	97825A120	00000000
		1"	Diamond	23 1/2"	11 3/4"	Rockwell C27	2 3/8"	7/8"	Brinell 60	1	1"	±0.005"/1 ft.	130,000	150	-50 to 350	97825A130	00000000
		1"	Diamond	29 1/2"	17 3/4"	Rockwell C27	2 3/8"	7/8"	Brinell 60	1	1"	±0.005"/1 ft.	130,000	150	-50 to 350	97825A140	00000000

Precision Acme Lead Screws and Nuts

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Metric Fast-Travel Ultra-Precision Lead Screws and Nuts

Metric Ultra-Precision Lead Screws and Nuts

Fast-Travel Ultra-Precision Lead Screws and Nuts

Self-Reversing Lead Screws and Nuts