Grade 5 Steel Hex Nuts | McMaster-Carr

Filter by

Thread Size

Material

Nut Type

System of Measurement

Thread Direction

Finish

Height

Thread Type

Width

Thread Fit

Hardness

Travel Distance per Turn

Tensile Strength

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

Compliant

REACH

Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Shaft Type

Flange Diameter

Hex Width

Push Nut Shape

Magnetic Properties

39 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.

Hex Nuts—Right-Hand Thread

Hex nuts fasten and position lead screw components.

Zinc-Plated Carbon Steel—Zinc-plated carbon steel components have mild corrosion resistance and 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
Zinc-Plated Carbon Steel



	1/4"-16	Acme	15/64"	1/2"	1	1:1	0.063"	Acme Class 2G	Rockwell B75	Not Rated	98948A111	000000


	3/8"-8	Acme	23/64"	11/16"	1	1:1	0.125"	Acme Class 2G	Rockwell B75	Not Rated	98948A112	00000
	3/8"-10	Acme	23/64"	11/16"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	98948A113	00000
	3/8"-12	Acme	23/64"	11/16"	1	1:1	0.083"	Acme Class 2G	Rockwell B75	Not Rated	98948A114	00000
	1/2"-8	Acme	31/64"	7/8"	1	1:1	0.125"	Acme Class 2G	Rockwell B75	Not Rated	98948A115	00000
	1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	98948A730	00000
	5/8"-6	Acme	39/64"	1 1/16"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	98948A116	00000
	5/8"-8	Acme	5/8"	1 1/16"	1	1:1	0.125"	Acme Class 2G	Rockwell B75	Not Rated	98948A740	00000
	3/4"-5	Acme	47/64"	1 1/4"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	98948A117	00000
	3/4"-6	Acme	3/4"	1 1/4"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	98948A750	00000
	3/4"-8	Acme	47/64"	1 1/4"	1	1:1	0.125"	Acme Class 2G	Rockwell B75	Not Rated	98948A118	00000


	7/8"-6	Acme	55/64"	1 7/16"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	98948A119	00000
	1"-4	Acme	63/64"	1 5/8"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	98948A121	00000
	1"-5	Acme	1"	1 5/8"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	98948A770	00000
	1"-6	Acme	63/64"	1 5/8"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	98948A122	00000
	1"-8	Acme	63/64"	1 5/8"	1	1:1	0.125"	Acme Class 2G	Rockwell B75	Not Rated	98948A123	00000
	1"-10	Acme	63/64"	1 5/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	98948A124	00000
	1 1/8"-5	Acme	1 7/64"	1 13/16"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	98948A125	00000
	1 1/4"-4	Acme	1 7/32"	2"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	98948A126	00000
	1 1/4"-5	Acme	1 1/4"	2"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	98948A820	00000
	1 3/8"-4	Acme	1 11/32"	2 3/16"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	98948A127	00000


	1 1/2"-4	Acme	1 15/32"	2 3/8"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	98948A128	00000
	1 1/2"-5	Acme	1 15/32"	2 3/8"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	98948A129	00000
	2"-4	Acme	1 31/32"	3"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	98948A131	000000
	2 1/4"-4	Acme	2 1/2"	3 1/2"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	98948A132	000000
	2 1/2"-4	Acme	2 1/2"	3 1/2"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	98948A133	000000

Hex Nuts—Left-Hand Thread

Hex nuts fasten and position lead screw components.

Zinc-Plated Carbon Steel—Zinc-plated carbon steel components have mild corrosion resistance and 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
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	000000


	5/8"-8	Acme	5/8"	1"	1	1:1	0.125"	Acme Class 2G	Rockwell B75	Not Rated	98948A140	00000
	3/4"-6	Acme	3/4"	1 1/4"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	98948A150	00000
	1"-5	Acme	1"	1 5/8"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	98948A170	00000
	1 1/4"-5	Acme	1 1/4"	2"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	98948A220	00000

Flanged Push Nuts for Unthreaded Shafts

The wide flange provides better load distribution than standard push nuts and can be used to cover oversized holes. Also known as thread cutting nuts. Use them on unhardened shafts that are softer than the push nut. The nut bites into the metal to form an interference grip.

	Hex Wd.	Ht.	Flange Dia.	Min. Hardness	Pkg. Qty.		Pkg.
Zinc-Plated 1050 Spring Steel



	1/8"	5/16"	3/16"	7/16"	Rockwell C41	100	90533A131	00000


	1/8"	5/16"	13/64"	17/32"	Rockwell C41	100	90533A132	00000
	5/32"	3/8"	13/64"	9/16"	Rockwell C41	100	90533A150	00000
	3/16"	3/8"	7/32"	1/2"	Rockwell C41	100	90533A133	00000
	3/16"	3/8"	15/64"	5/8"	Rockwell C41	100	90533A134	00000
	1/4"	7/16"	15/64"	19/32"	Rockwell C41	100	90533A135	00000
	1/4"	7/16"	15/64"	11/16"	Rockwell C41	100	90533A136	00000
	5/16"	1/2"	5/16"	7/8"	Rockwell C41	50	90533A140	00000