ASTM A325M – Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength (Metric)
This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts. The bolts are intended for use in structural connections. The bolts are furnished in sizes M12 to M36 inclusive.
alloy steel; bolts; carbon steel; metric; steel; structural; weathering steel