stamping parts Material: Carbon steel, stainless steel Surface: Zinc plated, HDG, Plain Standard: BS, ANSI, DIN Size: M6-M36 stamping partsMaterial: Carbon steel, stainless steelSurface: Zinc plated, HDG, PlainStandard: BS, ANSI, DINSize: M6-M36The Size according to your drawing. Stamping Hardware,bolt with dipping plastic coating,special parts