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About Hex Nuts
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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.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
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.
Thread Size | Wd. | Ht. | Fastener Strength Grade/Class | Specs. Met | Certificate Type | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Black-Oxide Steel | ||||||||||
| 1/2"-13 | 7/8" | 31/64" | ASTM Grade C | ASTM A563 | Material Certificate | 10 | 90580A109 | 00000 | ||
| 5/8"-11 | 1 1/16" | 39/64" | ASTM Grade C | ASTM A563 | Material Certificate | 10 | 90580A204 | 00000 | ||
| 3/4"-10 | 1 1/4" | 47/64" | ASTM Grade C | ASTM A563 | Material Certificate | 5 | 90580A312 | 0000 | ||
| 7/8"-9 | 1 7/16" | 55/64" | ASTM Grade C | ASTM A563 | Material Certificate | 1 | 90580A366 | 0000 | ||
| 1"-8 | 1 5/8" | 63/64" | ASTM Grade C | ASTM A563 | Material Certificate | 1 | 90580A383 | 0000 | ||
| 1 1/8"-7 | 1 3/4" | 1 7/64" | ASTM Grade C | ASTM A563 | Material Certificate | 1 | 90580A400 | 0000 | ||
| 1 1/4"-7 | 2" | 1 7/32" | ASTM Grade C | ASTM A563 | Material Certificate | 1 | 90580A697 | 0000 | ||
| 1 1/2"-6 | 2 3/8" | 1 15/32" | ASTM Grade C | ASTM A563 | Material Certificate | 1 | 90580A717 | 00000 | ||
