Externally Threaded Lead Screw Nuts

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Travel Distance per Turn

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Metric Rounded Trapezoidal

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Speed Ratio

Dynamic Thrust Load Capacity

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

External Thread Size

Thread Fit

Metric Trapezoidal Class 7H

Tensile Strength

Less than 10,000 psi

10,000 psi to 19,999 psi

40,000 psi to 59,999 psi

60,000 psi or greater

External Thread Type

Hardness

External Thread Length

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Compliant with Exemptions

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DFARS Specialty Metals

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167 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.

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, psi	Dynamic Thrust Load Cap., lb.	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	310	—	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	1,250	—	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	2,800	—	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	2,800	—	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	—	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	2,800	—	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	—	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	5,000	—	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	5,000	—	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	—	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	5,000	—	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	11,250	—	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	1,400	-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	1,400	-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	2,500	-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	5,600	-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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	150	-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	620	-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	1,400	-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	1,400	-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	1,400	-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	2,500	-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	2,500	-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	2,500	-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	3,900	-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., lb.		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	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	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	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	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

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

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.

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., lb.	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	—	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	—	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	—	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	—	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	—	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	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	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	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	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	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	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	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	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	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	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., lb.		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	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	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	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	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 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.

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

Metric Fast-Travel Ultra-Precision Lead Screws and Nuts


	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 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.

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, psi	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	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	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	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	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

Metric Ultra-Precision Lead Screws and Nuts


	Style A	Style B

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.

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, psi	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	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	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	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