Standard Galvanized Grade DH Steel Hex Nuts

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Hot-Dipped Galvanized

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30 Products

About Hex Nuts

Choose a hex nut with the right profile, material, and strength for your application.

Structural Heavy-Profile Hex Nuts

These nuts are designed to secure ASTM A325 screws in structural joints, such as mating I-beams, columns, and joists. About 10% wider and taller than standard-profile hex nuts, they handle heavier loads by distributing them over a larger area.

High-Strength Steel

Rated Grade 8, Grade C, or Class 10, these nuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

Hot-Dipped Galvanized Steel—Combines the strength of steel with the rust resistance of stainless steel. These nuts are an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals. The galvanized finish is thicker than other types of coatings, so the threads may be more likely to stick during installation. Use with other hot-dipped galvanized fasteners.

Steel—Best for dry environments since moisture will cause these nuts to rust.

	Wd.	Ht.	Fastener Strength Grade/Class	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Steel



	5/8"-11	1 1/16"	39/64"	ASTM Grade C	ASTM A563	10	000000000	000000


	3/4"-10	1 1/4"	47/64"	ASTM Grade C	ASTM A563	5	000000000	0000
	7/8"-9	1 7/16"	55/64"	ASTM Grade C	ASTM A563	1	000000000	0000
	1"-8	1 5/8"	63/64"	ASTM Grade C	ASTM A563	1	000000000	0000
	1 1/8"-7	1 3/4"	1 7/64"	ASTM Grade C	ASTM A563	1	000000000	0000
	1 1/4"-7	2"	1 7/32"	ASTM Grade C	ASTM A563	1	000000000	0000
	1 1/2"-6	2 3/8"	1 15/32"	ASTM Grade C	ASTM A563	1	000000000	00000


	Hot-Dipped Galvanized Steel



			1/2"-13	7/8"	31/64"	ASTM Grade C	ASTM A563	5	000000000	0000


			5/8"-11	1 1/16"	39/64"	ASTM Grade C	ASTM A563	1	000000000	0000
			3/4"-10	1 1/4"	47/64"	ASTM Grade C	ASTM A563	1	000000000	0000
			7/8"-9	1 7/16"	55/64"	ASTM Grade C	ASTM A563	1	000000000	00000
			1"-8	1 5/8"	63/64"	ASTM Grade C	ASTM A563	1	000000000	00000
			1 1/8"-7	1 3/4"	1 7/64"	ASTM Grade C	ASTM A563	1	000000000	00000
			1 1/4"-7	2"	1 7/32"	ASTM Grade C	ASTM A563	1	000000000	00000


			Steel



					1/2"-13	7/8"	31/64"	ASTM Grade C	ASTM A563	25	000000000	00000


					5/8"-11	1 1/16"	39/64"	ASTM Grade C	ASTM A563	10	000000000	0000
					3/4"-10	1 1/4"	47/64"	ASTM Grade C	ASTM A563	10	000000000	0000
					7/8"-9	1 7/16"	55/64"	ASTM Grade C	ASTM A563	10	000000000	00000
					1"-8	1 5/8"	63/64"	ASTM Grade C	ASTM A563	5	000000000	00000
					1 1/8"-7	1 3/4"	1 7/64"	ASTM Grade C	ASTM A563	1	000000000	0000
					1 1/4"-7	2"	1 7/32"	ASTM Grade C	ASTM A563	1	000000000	0000
					1 1/2"-6	2 3/8"	1 15/32"	ASTM Grade C	ASTM A563	1	000000000	00000

High-Strength Steel with Material Certificate

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	Wd.	Ht.	Fastener Strength Grade/Class	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Steel



	1/2"-13	7/8"	31/64"	ASTM Grade C	ASTM A563	10	000000000	00000

Extreme-Strength Steel

Rated Grade DH, these nuts are about 20% stronger than high-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

	Wd.	Ht.	Fastener Strength Grade/Class	Specs. Met	Pkg. Qty.		Pkg.
Hot-Dipped Galvanized Steel



	1/2"-13	7/8"	31/64"	ASTM Grade DH	ASTM A563	25	000000000	000000


	5/8"-11	1 1/16"	39/64"	ASTM Grade DH	ASTM A563	10	000000000	00000
	3/4"-10	1 1/4"	47/64"	ASTM Grade DH	ASTM A563	10	000000000	00000
	7/8"-9	1 7/16"	55/64"	ASTM Grade DH	ASTM A563	10	000000000	00000
	1"-8	1 5/8"	63/64"	ASTM Grade DH	ASTM A563	5	000000000	00000
	1 1/4"-7	2"	1 7/32"	ASTM Grade DH	ASTM A563	1	000000000	0000
	1 1/2"-6	2 3/8"	1 15/32"	ASTM Grade DH	ASTM A563	1	000000000	00000