... ,ZP,NP, BLK 4.Standard: DIN, Place of Origin: China(Mainland) Size: M3-16 (as your favor)Model Number:Pan Head Self ... /2" - 10"). Finish: Plain, zinc plated, galvanized, nickel plated. Black Standard model: DIN, GB, ISO, ANSI, ASME, JIB etcMaterial: Carbon Steel, Stainless ...