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Representative photo. Finish, head marking and packaging follow your order.
Structural Bolts
Heavy hex structural bolt to ASTM A325 (now consolidated in ASTM F3125 Grade A325) for steel-to-steel connections in buildings and bridges. Supplied as bolt, A563 DH / A194 2H nut and F436 washer from matched lots, plain, hot-dip galvanized or zinc flake coated.
| Size | Width across flats | Head height |
|---|---|---|
| 1/2" | 7/8" | 5/16" |
| 5/8" | 1-1/16" | 25/64" |
| 3/4" | 1-1/4" | 15/32" |
| 7/8" | 1-7/16" | 35/64" |
| 1" | 1-5/8" | 39/64" |
| 1-1/8" | 1-13/16" | 11/16" |
| 1-1/4" | 2" | 25/32" |
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 |
| Mechanically galvanized | Available | ASTM B695, common for high-strength parts |
| 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.
