... ,DIN,JIS ISO9001-2008,SGS,ROHS 1.The specification of All kinds of cnc part 1)Features:1.Head type: flat/countersunk,slotted ... 7.Packing: Carton, Box, Bag, Pallet8.Free Samples available 2) All kinds of cnc part series Details: StandardsISO, DIN, AS/NZS, GB, ANSI ... knurled screw, aluminum screw, wing screw,etc.Carbon steelMild/medium/high carbon steel, stainless steel, copper, brass, alloy, Aluminum, ...