Carbon Steel Precision Acme Rods

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Travel Distance per Turn

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Acme Class 2C

Metric Trapezoidal Class 8e

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Speed Ratio

Tensile Strength

Hardness

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Export Control Classification Number (ECCN)

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213 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	00000
		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
		3/4"-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"-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


		304 Stainless Steel



				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
				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
				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 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 1/2"-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

Lead Screws—Left-Hand Thread


	Left-Hand Threads

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., 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

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

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.

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	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

Lead Screws—Left-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., 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