ASTM A325 Type 1 Heavy Hex Structural Bolts,A325 Hex bolt

China ASTM A325 Type 1 Heavy Hex Structural Bolts,A325 Hex bolt manufacturer ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1⁄2 to 11⁄2 inches (13 to 38 mm) in diameter. ASTM A325 bolts are heavy hex bolts made of medium carbon steel with a flat bearing surface, washer faced, and chamfered point. A325 bolts are partially threaded for precise grip in structural joints. These bolts are one of the most common heavy hex fasteners, [...]