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Representative photo. Finish, head marking and packaging follow your order.
Hex Nuts
Heavy hex nut to ASTM A563 for structural bolting. Grade DH is the required nut for galvanized A325 bolts and for A490; it is tapped oversize after hot-dip galvanizing and lubricated per ASTM requirements.
| Size | Width across flats | Thickness |
|---|---|---|
| 1/2" | 7/8" | 31/64" |
| 5/8" | 1-1/16" | 39/64" |
| 3/4" | 1-1/4" | 47/64" |
| 7/8" | 1-7/16" | 55/64" |
| 1" | 1-5/8" | 63/64" |
| 1-1/8" | 1-13/16" | 1-7/64" |
| 1-1/4" | 2" | 1-7/32" |
Nominal inch values for reference.
| Finish | Applied | Notes |
|---|---|---|
| Hot-dip galvanized | Available | ISO 10684 / ASTM F2329; nuts tapped oversize to suit |
| Zinc flake (Dacromet/Geomet type) | Available | Electrolyte-free, no hydrogen embrittlement risk |
| Plain | Available | For customer-side coating |
For property class 10.9 and above, choose zinc flake, or zinc-nickel with hydrogen-embrittlement relief agreed at order stage.
Tell us size, grade, finish and quantity. We reply with price and lead time within 24 hours.
