Environmental Nuts Size:M3-M64;1/8''-3'' Material:brass,copper,bronze Standard:GB,DIN,BS,ISO,ANSI(IFI) Reasonable price good Products Information: 1Product:Bolt, Nut, Screw, Washer, Nails, Rivet, Insert, Brass fitting,Threaded rod, etc.2Matrrial: Copper, Bronze, Brass, Stainless steel, Aluminum, Grade.12.9 steel3Standard :GB, DIN, BS, ASTM, ISO, ANSI(IFI), JIS, or as customer's drawing4Size:M3- ...