... quality+satisfied price+best service 3.expert in this bolt hex flange bolt material:stainless steel,carbon steel,brass.Threads diameter ... ,phosphating,DacrometStandard:GB,BS,DIN,ANSI,JIS1.NameStainless Steel Plain Hex Flange Bolt2.standardDIN69213.MaterialStainless Steel4.FinishPlain;5.Size M3-M806 ...