1/2"-10 Rods | McMaster-Carr

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128 Products

About Lead Screws and Nuts

Compare lead screws and nuts by the size, direction, fit, and starts of their threads.

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.

Lead Screws—Right-Hand Thread

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.

Alloy Steel—Alloy steel components are harder and stronger than carbon steel components.

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

316 Stainless Steel—316 stainless steel components have excellent 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 Size	Thread Type	Lg.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Fastener Strength Grade/Class	Hardness	Tensile Strength	Specs. Met		Each
Carbon Steel



		1/2"-10	Acme	12"	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	64,000 psi	ASTM A108	98935A718	00000


		1/2"-10	Acme	2 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	64,000 psi	ASTM A108	98935A911	0000
		1/2"-10	Acme	3 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	64,000 psi	ASTM A108	98935A823	0000
		1/2"-10	Acme	4 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	64,000 psi	ASTM A108	98935A912	00000
		1/2"-10	Acme	6 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	53,000 psi	ASTM A108	98935A033	00000
		1/2"-10	Acme	8 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	64,000 psi	ASTM A108	98935A913	00000
		1/2"-10	Acme	12 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	64,000 psi	ASTM A108	98935A632	00000


		Zinc-Plated Carbon Steel



				1/2"-10	Acme	6"	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	53,000 psi	ASTM A108	93255A431	00000


				1/2"-10	Acme	12"	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	68,000 psi	ASTM A108	98941A735	00000
				1/2"-10	Acme	3 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	68,000 psi	ASTM A108	98941A425	00000
				1/2"-10	Acme	6 ft.	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	68,000 psi	ASTM A108	98941A250	00000


				Alloy Steel



						1/2"-10	Acme	6"	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93420A110	00000


						1/2"-10	Acme	8"	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93420A130	00000
						1/2"-10	Acme	10"	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93420A150	00000
						1/2"-10	Acme	12"	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93410A924	00000
						1/2"-10	Acme	2 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93410A112	00000
						1/2"-10	Acme	3 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93410A615	00000
						1/2"-10	Acme	4 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93410A113	00000
						1/2"-10	Acme	6 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93410A120	000000
						1/2"-10	Acme	8 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93410A114	000000
						1/2"-10	Acme	12 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000 psi	ASTM A193	93410A840	000000


						18-8 Stainless Steel



								1/2"-10	Acme	6"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B96	Not Rated	—	94330A110	00000


								1/2"-10	Acme	12"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B96	Not Rated	—	95061A615	00000
								1/2"-10	Acme	3 ft.	1	1:1	0.1"	Acme Class 2G	—	Rockwell B96	Not Rated	—	95061A819	00000
								1/2"-10	Acme	6 ft.	1	1:1	0.1"	Acme Class 2G	—	Rockwell B96	Not Rated	—	95061A212	000000
								1/2"-10	Acme	12 ft.	1	1:1	0.1"	Acme Class 2G	—	Rockwell B96	Not Rated	—	95061A929	000000


								316 Stainless Steel



										1/2"-10	Acme	12"	1	1:1	0.1"	Acme Class 2G	ASTM Grade B8M	Rockwell B97	75,000 psi	ASTM A193	97014A595	00000


1/2"-10										Acme	3 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B8M	Rockwell B97	75,000 psi	ASTM A193	97014A315	00000
1/2"-10	Acme									6 ft.	1	1:1	0.1"	Acme Class 2G	ASTM Grade B8M	Rockwell B97	75,000 psi	ASTM A193	97014A140	000000

Lead Screws—Left-Hand Thread

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

Alloy Steel—Alloy steel components are harder and stronger than carbon 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	Lg., ft.	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	3	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	53,000	ASTM A108	98935A419	000000


	1/2"-10	Acme	6	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B61	53,000	ASTM A108	98935A420	00000


	Alloy Steel



			1/2"-10	Acme	3	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	93410A424	00000


			1/2"-10	Acme	6	1	1:1	0.1"	Acme Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	93410A425	000000

Hex-Head Screws—Right-Hand Thread

Hex head screws fasten heavy loads. They’re generally shorter than lead screws and can be tightened with a wrench. Length is measured from under the head.

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.

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



		1/2"-10	Acme	3"	1	1:1	0.1"	2 1/2" to 3"	3/4"	5/16"	Acme Class 2G	SAE Grade 5	Rockwell C19	105,000	93097A170	000000


		1/2"-10	Acme	4"	1	1:1	0.1"	3 1/2" to 4"	3/4"	5/16"	Acme Class 2G	SAE Grade 5	Rockwell C19	105,000	93097A180	00000
		1/2"-10	Acme	6"	1	1:1	0.1"	5 1/2" to 6"	3/4"	5/16"	Acme Class 2G	SAE Grade 5	Rockwell C19	105,000	93097A190	00000

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	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 psi	—	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.

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.

	Lg.	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



	1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A005	000000


	1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A105	00000


	Black-Oxide 4140 Alloy Steel



			1/2"-10	18"	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A305	00000


			1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A625	00000
			1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000	98940A106	000000


			304 Stainless Steel



					1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A132	00000


					1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A370	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.

	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



	1/2"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A405	000000


	1/2"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000	99030A505	00000


	Black-Oxide 4140 Alloy Steel



			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


			304 Stainless Steel



					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

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



		1/2"-10	3	Acme	1:1	17"	17"	1	0.1"	±0.0003"/1"	Acme Class 2C	Brinell 200	95,000	99015A260	0000000

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	Dynamic Thrust Load Cap.	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 lb.	—	1343K134	00000


			PET



					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


					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.

	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



	1/2"-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 lb.	—	1343K234	00000


			PET



					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

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	Dynamic Thrust Load Cap.	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 psi	1,250 lb.	—	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 lb.	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 psi	620 lb.	-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.

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.

	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		Each
1018 Low-Carbon Steel



	1/2"-10	3	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A320	000000


	1/2"-10	3	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A304	00000
	1/2"-10	6	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A720	00000
	1/2"-10	6	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 126	64,000 psi	99030A704	00000


	Black-Oxide 4140 Alloy Steel



			1/2"-10	3	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A629	00000


			1/2"-10	3	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A627	00000
			1/2"-10	6	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A022	000000
			1/2"-10	6	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 271	125,000 psi	98940A020	00000


			304 Stainless Steel



					1/2"-10	3	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A981	00000


					1/2"-10	3	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A982	00000
					1/2"-10	6	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A380	000000
					1/2"-10	6	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000 psi	98980A375	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



	1/2"-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 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



					1/2"-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



	1/2"-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.	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 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

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

Clamping Acme Lead Screw Collars

Thread these one-piece collars onto an Acme lead screw to separate and position components, or use them as an end stop to limit travel. Tighten the clamping screw to secure.

To ensure compatibility, please select a collar that has the same thread type, direction, size, and number of thread starts as your lead screw.

Black-Oxide 12L14 Carbon Steel—Black-oxide carbon steel collars have mild corrosion resistance.

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

	No. of Thread Starts	Hardness		Each
Right-Hand Thread







	Black-Oxide 12L14 Carbon Steel

	1/2"-10	1 5/16"	1/2"	1	Brinell 163	6698K13	000000




			303 Stainless Steel

			1/2"-10	1 1/8"	7/16"	1	Brinell 228	2228N11	00000


			Left-Hand Thread







							Black-Oxide 12L14 Carbon Steel

							1/2"-10	1 5/16"	1/2"	1	Brinell 163	6698K61	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.

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., ft.	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



	1/2"-10	3	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K714	0000000


	1/2"-10	6	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K22	000000

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.

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., ft.	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



	1/2"-10	3	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K712	0000000


	1/2"-10	6	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K21	000000

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

Two-Piece Clamping Acme Lead Screw Collars

Mount these two-piece collars anywhere on an Acme lead screw without removing components. Use them to separate and position components or as an end stop to limit travel. Tighten the clamping screw to secure.

To ensure compatibility, please select a collar that has the same thread type, direction, size, and number of thread starts as your lead screw.

Black-Oxide 12L14 Carbon Steel—Black-oxide carbon steel collars have mild corrosion resistance.

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

	No. of Thread Starts	Hardness		Each
Right-Hand Thread







	Black-Oxide 12L14 Carbon Steel

	1/2"-10	1 5/16"	1/2"	1	Brinell 163	2224N15	000000




			303 Stainless Steel

			1/2"-10	1 1/8"	13/32"	1	Brinell 228	2207N19	00000