Standard SAE Grade SAE/SS304/SS316L Finish Carbon Steel/Steel: Zinc (Yellow, White, Blue, Black), Hot Dip Galvanized (HDG), Black, Geomet, Dacromet , Anodization, Nickel plated, Zinc-Nickel plated, Teflon(PTFE), etc. Material Carbon steel/ stainless steel Size M12-M100,1/2-4 or as your requirement.