What is plating screw, the main material composition is what,

Plating screw means the surface of the screw in a layer of electrical coating. Screw substrate optional SKD61 / SACM645 / 38CrMoAla, the surface can choose a chrome-plated, titanium, nickel. It is suitable for processing U-PVC corrosive plastics, PFA and acid corrosion materials, and PC, PMMA, PET general transparent material.