Structural

Heavy Hex Bolts are structural bolts used in the construction industry. The same size wrench can be used on the head and the accompanying heavy hex nut. A325 and A490 structural bolts are made with a shorter shank to withstand heavier loads compared to a standard hex bolts. They are used for steel on steel construction. Tension Control Bolts are a heavy duty bolt-nut-washer assembly and are used in steel frame construction.