1/2"-10 Couplings | McMaster-Carr

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10,000 psi to 19,999 psi

20,000 psi to 39,999 psi

40,000 psi to 99,999 psi

Not Rated

Dynamic Thrust Load Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

3,000 lb. to 9,999 lb.

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57 Products

Acme Lead Screws and Nuts

Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.

Coupling Nuts—Right-Hand Thread

Coupling nuts connect two lead screws.

Carbon Steel—Carbon steel components are easier to machine than alloy steel components.

18-8 Stainless Steel—18-8 stainless steel components have good corrosion resistance.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
Carbon Steel



	1/2"-10	Acme	1 1/4"	5/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	93023A673	000000


	18-8 Stainless Steel



			1/2"-10	Acme	1 1/4"	5/8"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	93030A106	00000

Coupling Nuts—Left-Hand Thread

Coupling nuts connect two lead screws.

Carbon Steel—Carbon steel components are easier to machine than alloy steel components.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
Carbon Steel



	1/2"-10	Acme	1 1/4"	5/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	93026A648	000000

Flange Nuts—Right-Hand Thread

Flange nuts move objects along the length of a lead screw. Flange nuts have a wide machinable flange for custom mounting.

932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. 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 or handle moves with one revolution of the lead screw.

					Flange
	Thread Size	Thread Type	Ht.	Dia.	Dia.	Thk.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
932 Bearing Bronze



		1/2"-10	Acme	1"	3/4"	1 1/4"	1/8"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	95120A111	0000000

Flange Nuts—Left-Hand Thread

Flange nuts move objects along the length of a lead screw. Flange nuts have a wide machinable flange for custom mounting.

932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. 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 or handle moves with one revolution of the lead screw.

					Flange
	Thread Size	Thread Type	Ht.	Dia.	Dia.	Thk.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
932 Bearing Bronze



		1/2"-10	Acme	1"	3/4"	1 1/4"	1/8"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	95120A511	0000000

Round Nuts—Right-Hand Thread

Round nuts move objects along the length of a lead screw.

Cast Iron—Cast iron components have good machinability and high strength.

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

932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. 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 or handle moves with one revolution of the lead screw.

	Thread Type	Ht.	Dia.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Specs. Met		Each
Cast Iron



	1/2"-10	Acme	1"	1 15/32"	1	1:1	0.1"	Acme Class 2G	Rockwell B96	Not Rated	—	95080A103	000000


	360 Brass



			1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A103	0000


			932 Bearing Bronze



					1/2"-10	Acme	29/32"	29/32"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A104	00000

Round Nuts—Left-Hand Thread

Round nuts move objects along the length of a lead screw.

Cast Iron—Cast iron components have good machinability and high strength.

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

932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. 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 or handle moves with one revolution of the lead screw.

	Thread Type	Ht.	Dia.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Specs. Met		Each
Cast Iron



	1/2"-10	Acme	1"	1 15/32"	1	1:1	0.1"	Acme Class 2G	Rockwell B96	Not Rated	—	95080A403	000000


	360 Brass



			1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A403	0000


			932 Bearing Bronze



					1/2"-10	Acme	29/32"	29/32"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A404	00000

Hex Nuts—Right-Hand Thread

Hex nuts fasten and position lead screw components.

Carbon Steel—Carbon steel components are easier to machine than alloy steel components.

Zinc-Plated Carbon Steel—Zinc-plated carbon steel components have mild corrosion resistance and are easier to machine than alloy steel components.

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

18-8 Stainless Steel—18-8 stainless steel components have good corrosion resistance.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Specs. Met		Each
Carbon Steel



	1/2"-10	Acme	31/64"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	—	94815A107	00000


	Zinc-Plated Carbon Steel



			1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	—	98948A730	00000


			360 Brass



					1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	ASTM B16	95155A114	0000


					18-8 Stainless Steel



							1/2"-10	Acme	31/64"	7/8"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	—	95066A212	00000

Hex Nuts—Left-Hand Thread

Hex nuts fasten and position lead screw components.

Carbon Steel—Carbon steel components are easier to machine than alloy steel components.

Zinc-Plated Carbon Steel—Zinc-plated carbon steel components have mild corrosion resistance and are easier to machine than alloy steel components.

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

18-8 Stainless Steel—18-8 stainless steel components have good corrosion resistance.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Fastener Strength Grade/Class	Hardness	Tensile Strength, psi	Specs. Met		Each
Carbon Steel



	1/2"-10	Acme	31/64"	7/8"	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A107	00000


	Zinc-Plated Carbon Steel



			1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B75	Not Rated	—	98948A130	00000


			360 Brass



					1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A314	0000


					18-8 Stainless Steel



							1/2"-10	Acme	31/64"	7/8"	1	1:1	0.1"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A412	00000

Square Nuts—Right-Hand Thread

Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.

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

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Specs. Met		Each
360 Brass



	1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A114	000000

Square Nuts—Left-Hand Thread

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

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Specs. Met		Each
360 Brass



	1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A514	000000

Thumb Nuts—Right-Hand Thread

Thumb nuts fasten and position lead screw components. Thumb nuts are easy to grip and tighten by hand for quick assembly and disassembly.

Cast Iron—Cast iron components have good machinability and high strength.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
Cast Iron



	1/2"-10	Acme	1 3/16"	2 3/4"	1	1:1	0.1"	Acme Class 2G	Rockwell B97	Not Rated	98675A115	000000

Flat Handles—Right-Hand Thread

Handles fasten and position lead screw components. Handles are easy to grip and tighten by hand for quick assembly and disassembly.

Cast Iron—Cast iron components have good machinability and high strength.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
Cast Iron



	1/2"-10	Acme	1 1/8"	9 1/2"	1	1:1	0.1"	Acme Class 2G	Rockwell B72	Not Rated	92428A742	000000

Offset Handles—Right-Hand Thread

Handles fasten and position lead screw components. Handles are easy to grip and tighten by hand for quick assembly and disassembly.

Cast Iron—Cast iron components have good machinability and high strength.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
Cast Iron



	1/2"-10	Acme	2"	4 1/2"	1	1:1	0.1"	Acme Class 2G	Rockwell B67	Not Rated	98890A115	000000

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.

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.

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



	1/2"-10	1"	1.469"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A115	000000


	932 Bearing Bronze



			1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,300	—	1343K134	00000


			PET



					1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	650	15 to 175	1349K141	00000


					PEEK



							1/2"-10	1"	1.5"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	16,000	5,650	-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.

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



	1/2"-10	1"	1.469"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A315	000000


	932 Bearing Bronze



			1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,300	—	1343K234	00000


			PET



					1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	650	15 to 175	1349K142	00000

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.

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



		1/2"-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	000000


		673 Bronze



				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


				PET



						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


						PEEK



								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

Externally Threaded Nuts—Left-Hand Thread

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

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
673 Bronze



		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	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

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

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

Flanges

Image of Attribute. Front orientation. Contains Annotated.

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

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
Black-Oxide 1117 Carbon Steel



	15/16"-16	2 39/64"	17/32"	2 3/32"	Brinell 135	1329K102	000000


	1215 Carbon Steel



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


			303 Stainless Steel



					15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K12	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.

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., lb.	Temp., ° F		Each
Iron



	1/2"-10	1"	1.469"	Acme	2:1	2	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A512	000000


	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



			1/2"-10	1"	1.469"	Acme	2:1	2	0.2"	Acme Class 2C	Brinell 65	Not Rated	1,300	—	1343K22	00000


			1/2"-10	1"	1.469"	Acme	5:1	5	0.5"	Acme Class 2C	Brinell 65	Not Rated	1,300	—	1343K112	00000


			PET



					1/2"-10	1"	1.469"	Acme	2:1	2	0.2"	Acme Class 2C	Not Rated	Not Rated	650	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	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



	1/2"-10	1"	1.469"	Acme	5:1	5	0.5"	Acme Class 2C	Brinell 65	Not Rated	1,300	1343K212	000000

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.

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
673 Bronze



		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	000000


		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


		PET



				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

Flanges

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

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
1215 Carbon Steel



	15/16"-16	2 5/8"	17/32"	2 3/32"	Not Rated	95082A642	000000


	303 Stainless Steel



			15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K12	00000

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 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.

Flange Nuts—Right-Hand Thread


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.	Thk.	Thread Type	Speed Ratio	Bolt Circle Dia.	No. of Thread Starts	Travel Distance per Turn	Hardness	Tensile Strength, psi	Dynamic Thrust Load Cap., lb.	No. of Mounting Holes		Each
Acetal



		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	150	3	6350K42	000000


		Acetal with Wear-Compensating Spring



				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	25	3	6350K62	00000

Ultra-Precision Lead Screws and Nuts


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.

Flange Nuts—Right-Hand Thread


Style B	Style C


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.

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



		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	150	3	6350K41	000000


		Acetal with Wear-Compensating Spring



				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	25	3	6350K61	00000