Threaded Bar 1)Standard:DIN975 2)Class:Grade4.8,8.8 3) ... Steel,Stainless Steel 4)Surface:Zinc Plated,HDG,Bl thread bars din975name:thread barsstandard:din975surface:zinc plated , black , plain , H.G.Dgrade ... , you are welcomed to visit us. AL6XN(NO8367)stainless steel thread bar DIN975