5/8"-10 Lead Screw Nuts | McMaster-Carr

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Thread Direction

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Length

Diameter

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Number of Mounting Holes

Number of Thread Starts

Flange Diameter

1 1/2"

1 51/64"

Travel Distance per Turn

0.1"

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Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 2,999 lb.

Tensile Strength

Speed Ratio

Thread Fit

External Thread Size

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14 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.

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



	5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A525	000000


	932 Bearing Bronze



			5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,000	—	1343K135	00000


			PET



					5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,000	15 to 175	1349K143	00000

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



	5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A625	000000


	932 Bearing Bronze



			5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,000	—	1343K235	00000


			PET



					5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,000	15 to 175	1349K144	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.

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



		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	000000


		PET



				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

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



		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	000000

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

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.

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	5/8"-10	1 1/2"	0.875"	1 1/2"	3/16"	Rounded Acme	1:1	1 3/16"	1	0.1"	Not Rated	9,700	220	3	6350K167	000000


		Acetal with Wear-Compensating Spring



				C	5/8"-10	2"	1.063"	1 51/64"	17/64"	Rounded Acme	1:1	1 3/8"	1	0.1"	Not Rated	9,700	35	3	6350K205	00000