... Steel bolts demand side Steel-structured high-strength torsion components for bolted connections with CE certifation 1.high strength ... .We supply various dimension track shoe bolt ,which are used for caterpillar, komatsu, hitachi, kobelco, daewoo, kato, hyundai, ... tensile Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless steel etc. ...