... 7.Packing: Carton, Box, Bag, Pallet8.Free Samples available 2) All kinds of cnc part series Details: StandardsISO, DIN, AS/NZS, GB ... screw, torx socket screw, set screw, machine screw, knurled screw, aluminum screw, wing screw,etc.Carbon steelMild/medium/high carbon steel ... , stainless steel, copper, brass, alloy, Aluminum, etc.FinishZimc plated(Cr,3+);zinc plated(Cr,6+); hot ...