General Purpose Iron Acme Nuts | McMaster-Carr

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38 Products

Acme Lead Screws and Nuts

Image of ProductInUse. Front orientation. Contains Inset. Lead Screws and Nuts. 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.

Round Nuts—Right-Hand Thread

Image of Product. Front orientation. Lead Screws and Nuts. Acme Lead Screws and Nuts, 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.

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	Ht.	Dia.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		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


		5/8"-8	Acme	1 1/4"	1 55/64"	1	1:1	0.125"	Acme Class 2G	Rockwell B96	Not Rated	95080A108	00000
		3/4"-5	Acme	1 1/2"	2 15/64"	1	1:1	0.2"	Acme Class 2G	Rockwell B96	Not Rated	95080A112	00000
		3/4"-6	Acme	1 1/2"	2 15/64"	1	1:1	0.167"	Acme Class 2G	Rockwell B96	Not Rated	95080A113	00000
		1"-5	Acme	2"	2 63/64"	1	1:1	0.2"	Acme Class 2G	Rockwell B96	Not Rated	95080A122	00000
		1"-6	Acme	2"	2 63/64"	1	1:1	0.167"	Acme Class 2G	Rockwell B96	Not Rated	95080A123	00000
		1"-10	Acme	2"	2 63/64"	1	1:1	0.1"	Acme Class 2G	Rockwell B96	Not Rated	95080A125	00000
		1 1/4"-5	Acme	2 1/2"	3 47/64"	1	1:1	0.2"	Acme Class 2G	Rockwell B96	Not Rated	95080A128	000000
		1 1/2"-4	Acme	3"	4 15/32"	1	1:1	0.25"	Acme Class 2G	Rockwell B96	Not Rated	95080A132	000000

Round Nuts—Left-Hand Thread

Image of Product. Front orientation. Lead Screws and Nuts. Acme Lead Screws and Nuts, 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.

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	Ht.	Dia.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		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


		5/8"-8	Acme	1 1/4"	1 55/64"	1	1:1	0.125"	Acme Class 2G	Rockwell B96	Not Rated	95080A408	00000
		3/4"-5	Acme	1 1/2"	2 15/64"	1	1:1	0.2"	Acme Class 2G	Rockwell B96	Not Rated	95080A412	00000
		3/4"-6	Acme	1 1/2"	2 15/64"	1	1:1	0.167"	Acme Class 2G	Rockwell B96	Not Rated	95080A413	00000
		1"-5	Acme	2"	2 63/64"	1	1:1	0.2"	Acme Class 2G	Rockwell B96	Not Rated	95080A422	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 Size	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


		5/8"-8	Acme	1 3/16"	2 3/4"	1	1:1	0.125"	Acme Class 2G	Rockwell B97	Not Rated	98675A119	00000

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



		3/8"-12	Acme	1 1/8"	9 1/2"	1	1:1	0.083"	Acme Class 2G	Rockwell B72	Not Rated	92428A741	000000


		1/2"-10	Acme	1 1/8"	9 1/2"	1	1:1	0.1"	Acme Class 2G	Rockwell B72	Not Rated	92428A742	00000
		5/8"-8	Acme	1 1/8"	9 1/2"	1	1:1	0.125"	Acme Class 2G	Rockwell B72	Not Rated	92428A743	00000
		3/4"-5	Acme	1 1/8"	9 1/2"	1	1:1	0.2"	Acme Class 2G	Rockwell B72	Not Rated	92428A620	00000
		3/4"-6	Acme	1 1/8"	9 1/2"	1	1:1	0.167"	Acme Class 2G	Rockwell B72	Not Rated	92428A630	00000
		7/8"-6	Acme	1 1/8"	9 1/2"	1	1:1	0.167"	Acme Class 2G	Rockwell B72	Not Rated	92428A744	00000
		1"-4	Acme	1 1/8"	9 1/2"	1	1:1	0.25"	Acme Class 2G	Rockwell B72	Not Rated	92428A745	00000
		1"-5	Acme	1 1/8"	9 1/2"	1	1:1	0.2"	Acme Class 2G	Rockwell B72	Not Rated	92428A650	00000
		1"-6	Acme	1 1/8"	9 1/2"	1	1:1	0.167"	Acme Class 2G	Rockwell B72	Not Rated	92428A730	00000
		1 1/4"-4	Acme	1 1/8"	9 1/2"	1	1:1	0.25"	Acme Class 2G	Rockwell B72	Not Rated	92428A670	00000
		1 1/4"-5	Acme	1 1/8"	9 1/2"	1	1:1	0.2"	Acme Class 2G	Rockwell B72	Not Rated	92428A680	00000


		1 1/2"-4	Acme	1 1/8"	9 1/2"	1	1:1	0.25"	Acme Class 2G	Rockwell B72	Not Rated	92428A710	00000

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



		3/4"-5	Acme	1 1/8"	9 1/2"	1	1:1	0.2"	Acme Class 2G	Rockwell B72	Not Rated	92428A110	000000


		3/4"-6	Acme	1 1/8"	9 1/2"	1	1:1	0.167"	Acme Class 2G	Rockwell B72	Not Rated	92428A120	00000
		1"-5	Acme	1 1/8"	9 1/2"	1	1:1	0.2"	Acme Class 2G	Rockwell B72	Not Rated	92428A130	00000
		1"-6	Acme	1 1/8"	9 1/2"	1	1:1	0.167"	Acme Class 2G	Rockwell B72	Not Rated	92428A140	00000
		1 1/4"-4	Acme	1 1/8"	9 1/2"	1	1:1	0.25"	Acme Class 2G	Rockwell B72	Not Rated	92428A150	00000
		1 1/4"-5	Acme	1 1/8"	9 1/2"	1	1:1	0.2"	Acme Class 2G	Rockwell B72	Not Rated	92428A160	00000
		1 1/2"-4	Acme	1 1/8"	9 1/2"	1	1:1	0.25"	Acme Class 2G	Rockwell B72	Not Rated	92428A170	00000

Offset Handles—Right-Hand Thread

Image of Product. Front orientation. Lead Screws and Nuts. Acme Lead Screws and Nuts, 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 Size	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
Cast Iron



		3/8"-12	Acme	1 3/4"	4 1/4"	1	1:1	0.083"	Acme Class 2G	Rockwell B67	Not Rated	98890A111	000000


		1/2"-10	Acme	2"	4 1/2"	1	1:1	0.1"	Acme Class 2G	Rockwell B67	Not Rated	98890A115	00000
		5/8"-8	Acme	2 1/4"	4 3/4"	1	1:1	0.125"	Acme Class 2G	Rockwell B67	Not Rated	98890A119	00000

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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)