Often used in structural steel to steel fastening applications, the structural bolt is a hex head style threaded fastener designed to provide the heavy duty holds needed in steel building frameworks. The heavy hex head of the bolt gives this fastener a wider bearing surface to distribute the load better. Seen in heavy construction jobs, structural bolts are used with a nut and hardened washer to make ASTM specifications. The high quality steel used to create these bolts are designed for strength and durability, allowing these bolts to conform to ASTM A325. Due to their durability, reliability and tough construction these bolts are perfect for scaffolding, I-beams and structural joints, as well as use in cell phone tower modifications.