... stainless steel 2.Size:M3-M80 3.Zinc, Nickel plated,Black Oxide,HDG finish 4.SGS,ISO Wheel locking ... standard products welcome.6. Surface treatment:Plain, black finished, Zinc plated (Galv), Hot Dip Galvanized, Nickel, phosphate black, DACROMET coating ... white,blue,yellow,green)Hot dip galvanized(HDG)Nickel-plated,Chrome-plated,Tin-plated,DacrometPassivation,Dacroblack,QPQ,Polished,MattSize of M3 M4 M5 ...