1,Material: steel,stainless steel,aluminium, brass 2,customized sureface treatment 3,High QC standard 4,OEM ... , SS304, SS316, SS416, SS4202. Steel:C45(K1045), C46(K1046),C203. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000( ... 0.1mm to 8mm or as requiredProducts Availablebolts, screws, nuts, rivets, stem nuts, shafts(axles, spline shafts, dart shafts),gears (pinions, ...