... : M1.2- M64;0# -3" 2) Material: RoHS brass,copper,bronze, etc 3) Standard: GB,DIN,BS,ISO,ANSI(IFI), etc ... , Nails, Rivet, Insert, Brass fitting,Threaded rod, etc.2Matrrial: Copper, Bronze, Brass, Stainless steel, Aluminum, Grade.12.9 steel3Standard :GB, DIN ...