... . material:carbon steel 2. standard:GB/DIN/ANSI.etc various of standard and non-standard fasteners (bolts, nuts, screws, etc) 1.Metail ... :Carbon steel,stainless steel,35CrMo,35#.etc.2.Size:M2-M683 ... ,zinc plated,black oxide,hot dip galv.etc.5.Packing:in bulk,15-25kgs per carton,then on pallet or small ...