Choose from our selection of grade DH nuts, including hex nuts, locknuts, and more. Same and Next Day Delivery.

ASTM A563-DH Carbon and Alloy Steel Nuts. This specification covers chemical and mechanical requirements for eight property classes of hex and hex-flange carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts.

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.

The ASTM A563 specification covers the chemical and mechanical requirements for carbon and alloy steel nuts used on bolts, studs, and externally threaded fasteners. The charts below address over tapping allowances for hot-dip galvanized nuts, grade marking requirements, and …

ASTM A563 Grade DH heavy hex nuts are commonly used in structural bolting applications. ASTM A563 covers standard specifications for carbon and alloy steel nuts. Grade markings consists of the grade symbol "DH".They are a common high strength nut used mainly in structural applications with F3125 Grades A325 and A490 bolting.

Supplier Of ASTM A563 Nut, We Specialize In Offering A563M Grade A and Dh Hex Nut Material In Customized Size. check SA563 Lock & Coupling Nut, washer specifications, weight, thickness & dimensions.

Order Your Bulk A563 Grade DH Heavy Hex Nuts Today! Strengthen your structural assemblies with our high-performance A563 Grade DH Heavy Hex Nuts with HDG/Wax/Blue Dye finish. For sizes without wax, we also offer HDG finish only.

The strongest of all comparably graded nuts because of its greater length of thread engagement and greater resistance to widening or stretching. Grade-DH nuts are recommended for use with A490, type-1 structural bolts. (5) / Domestic - $7.60. Only $3.04 (0.608/) when you buy 10 or more. (5) / Domestic - $4.62.

Heavy Hex Nuts, also referred to as structural nuts, are both thicker and wider than a standard (finished) hex nut and compatible with high strength and large diameter bolts. Nuts in sizes 7/16" and smaller are double chamfered.

USA/Canadian ASTM A563 Grade DH heavy hex nuts are commonly used in structural bolting applications. DH nuts listed on this page are melted and manufactured in the USA or Canada. ASTM A563 covers standard specifications for carbon and alloy steel nuts.