Grade 7 Nuts | McMaster-Carr

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ASTM Grade 7

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	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

	Material Material

Steel

	Nut Type Nut Type

	Hex

	Width Width

	Thread Fit Thread Fit

Class 2B

	Thread Spacing Thread Spacing

Coarse

Fine

	Thread Direction Thread Direction

	Right Hand

	Hex Nut Profile Hex Nut Profile

	Extra Wide

	Specifications Met Specifications Met

ASTM

	Height Height

	Thread Type Thread Type

UNC

	Drive Style Drive Style

	External Hex

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

11 Products

About Nuts, Materials, and Finishes

Able to maintain their strength in high-pressure and high-temperature environments, these nuts are used with ASTM A193 bolts to fasten pressure tanks, valves, and flanges. Also known as heavy hex nuts, they are about 10% wider and taller than standard hex nuts and distribute the load over a large area.

Steel—ASTM Grade 7
Thread Size	Wd.	Ht.	Specifications Met	Pkg. Qty.		Pkg.
1/4"-20	1/2"	1 5/64"	ASTM A194	10	000000000	00000
3/8"-16	11/16"	23/64"	ASTM A194	10	000000000	0000
1/2"-13	7/8"	31/64"	ASTM A194	10	000000000	0000
5/8"-11	1 1/16"	39/64"	ASTM A194	10	000000000	00000
3/4"-10	1 1/4"	47/64"	ASTM A194	10	000000000	00000
7/8"-9	1 7/16"	55/64"	ASTM A194	5	000000000	0000
1"-8	1 5/8"	63/64"	ASTM A194	5	000000000	00000
1 1/8"-7	1 13/16"	1 7/64"	ASTM A194	1	000000000	0000
1 1/8"-8	1 13/16"	1 7/64"	ASTM A194	1	000000000	0000
1 1/4"-7	2"	1 7/32"	ASTM A194	1	000000000	0000
1 1/4"-8	2"	1 7/32"	ASTM A194	1	000000000	0000

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About Nuts, Materials, and Finishes

Steel Extra-Wide Hex Nuts for High-Pressure Applications