... steel. System metallurgical plants, railway bridges, airport hangar, port machinery, high-rise buildings, civil span. Structural steel tower ... .We supply various dimension track shoe bolt ,which are used for caterpillar, komatsu, hitachi, kobelco, daewoo, kato, hyundai, ... Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless steel etc ...