... Bolt4.excavator and bulldozer track shoe bolt.We supply various dimension track shoe bolt ,which are used for caterpillar, komatsu, hitachi, kobelco, ... 1/4'' 5.High tensile Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless steel ... and commercial ship building industry Torshear Bolts Type High Strength Bolt for buildings and bridges