... plating, Tin-plating, Passivate, Oxidation, Phosphorization, Radiant Plated,Process: Heading, Threading, Angle-cutting/Slotting, Heat treatment, Plating, Anti-slipping patchCategory: 1 ... socket button head and etc. 3. by type of drive inserts Phillilps, Slotted, Pillips/slotted combination, Cross recess type, H drive ...