... zinc non-standard flat head socket rivets with internal thread1.Standards:DIN ,ANSI/ASME,BS,GB,JIS ... 10.9 and 12.9.5. Stainless steel internal and external hexagon bolt products: A2-70, ... . Material: 304, 316, 316L.6. International internal and external hexagon bolt with the mechanical property of ... and 8.7. Various nuts, flat gaskets, spring washers, mechanical bolts, tapping screws, fibreboard screws ...