... HEXAGON HEAN BOLTS Standard:GB/T5780-5786 GB/T30 DIN931 DIN933 DIN558 DIN601 ISO4014-4018 JIS1180 ANSI/ASME B 18.2.1 HEXAGON ... ANSI/ASME B 18.2.1 We supply the bolts, screws, nuts, rods, studs, washers and many ... galvanization, Dacromet and other kinds. The products are produced in conformity with DIN, ANSI, AS, BS, JIS, ... in grades of 4.8, 6.8, 8.8, 10.9, 12.9, A2-50, A2-70 and A4-70etc HEXAGON HEAN BOLTS ...