... Standard:DIN,JIS,ANSI 3Material:Carbon steel.Stainless steel Professional supply stainless steel fasteners1.Nuts: Hex nut(DIN934,ISO4032,DIN439,DIN936 ... located in the centre of the most energetic city_Wenzhou.2. We have our own factory to production of fasteners and professionally ... , JIS, GB, ANSI, BS and the un-standard as well, we can supply Hex head bolts, hex nuts, nylon lock nuts, screws, tapping ...