STAINLESS STEEL HEXAGON HEAN BOLTS Standard:GB/T5780-5786 GB/T30 ... DIN558 DIN601 ISO4014-4018 JIS1180 ANSI/ASME B 1 STAINLESS STEEL HEXAGON HEAN BOLTSStandard:GB/T5780-5786 GB/T30 DIN931 ... screws, nuts, rods, studs, washers and many other hardware products, made of carbon steel, alloy and stainless steel, aluminum, brass or other special ... .9, A2-50, A2-70 and A4-70etc STAINLESS STEEL HEXAGON HEAN BOLTS