ASTM A325 and ASTM A490 are the two ASTM standard structural bolt specifications.First, A325 and A490 bolts are produced with a heavy hex head configuration which provides a wider bearing surface over which to distribute the load.
High Strength Bolts are available in diameters from 1/2 to 1-1/2 inch diameters with a minimum tensile strength of 150,000 PSI for all diameters.
- Material: Alloy Steel
- Color: Black
- Diameter:1/2 to 1-1/2 inch
- Standard: DIN