... Standard:DIN,JIS,ANSI 3Material:Carbon steel.Stainless steel Professional supply stainless steel fasteners1.Nuts: Hex nut(DIN934,ISO4032,DIN439,DIN936 ... DIN603), Allen bolt(DIN912), T bolt.3.Screws: Drywall screw, Wood screw. Self driling screw, Self-tapping screw. Butterfly screws. Furniture ... ANSI, BS and the un-standard as well, we can supply Hex head bolts, hex nuts, nylon lock nuts, screws, ...