Elevator bolt & bulldog clamp feature a wide, countersunk flat head, a shallow conical bearing surface, a square neck, and a unified thread pitch. They are commonly used in conveyor systems. As a steel elevator bolt supplier, AFT offers a wide range of bolt sizes including diameters ranging from 1/4â?? to 3/8â?? and lengths from 3/4â?? up to 4â??. We are engaged in Manufacturing, Trading, Wholesaling, Distributing and Supplying of Chain Pulley Blocks, Geared Trolleys, Wire Rope, Wire Rope Slings, Chain Sling, D-Shackle, U-Clamp, Pulley Block, Eye Bolts, Chains, Thimble and Rigging Equipment