... have various kinds of screws,for example,slotted pan head screws,hexagon tapping screws,slotted flat head tapping screws and so on.There is ... , CNC lathe, turning parts, brass turning parts. 3. Surface treatment: galvanized steel, nickel plating, chrome plating, phosphating, polishing, the surface hardening ... highly appreciated and given the best attention. Slotted flat end screws