Hex head Partially Threaded bolts with zinc plated 1,Products DetailesMaterial1.Stainless Steel: SS201, SS303, SS304, SS316, ... steel: SCM435,10B21Specification& gaugeM0.8-M10Surface FinishingZn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate, Polish,Electro Painting,Black Anodize ... Evaluation 8,We are the best Choice for yr Hex head Partially Threaded bolts with zinc plated