... 40Cr Bolt4.excavator and bulldozer track shoe bolt.We supply various dimension track shoe bolt ,which are used for caterpillar, komatsu, ... Specifications Size from: M5 - M42 Length: 10mm-200mm Hexagon head bolt: Treatment: HDG, Zinc, Black... Carbon steel: Grade/class 4 ... bolts, high strength bolts, screws, nuts, threaded rod, anchor bolt, nail, other off-standard fasteners and following to the drawers ...