Nylon Lock hex nuts with zinc plated 1,Products DetailesMaterial1.Stainless Steel: SS201, SS303, SS304, ... steel: SCM435,10B21Specification& gaugeM0.8-M10Surface FinishingZn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate, Polish,Electro Painting,Black Anodize ... ,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. ...