... Material:Carbon steel, Stainless steel, Alloy Steel, BrassSurface:Plain, Zinc plated, HDG, Phosphate,Black Oxide, Chromate,ETC Packing:Bulk or ... East ,Southeast Asia, etc. Our main products including bolts, nuts, screws,washers, anchors, rivets, pins and special fasteners made ... ’ special request and drawings. We also specialized in lock nuts and taps / gages. .Our LOCK fastener can effectively ...