... , high tensile strength bolts for rail bridges etc.3, Various type and sizes of tie plates, clamps, fastenings, gauge plates, ... such as bolts, high strength bolts, screws, nuts, threaded rod, anchor bolt, nail, other off-standard fasteners and following to the ... 1 1/4'' 5.High tensile Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless ...