Hexagon flange bolts 1.Standard:DIN,ANSI,BSW,ISO 2.Material:carbon&stainless steel,brass 3.Finish:Plain,ZP,YZP,Black,HDG Hexagon flange bolts 1.Standard:DIN,ANSI,BSW,ISO 2.Material:carbon steel,stainless steel,brass3.Surface treatment:Plain,ZP,YZP,Black,HDG,Nickel,Dacromet MaterialCarbon Steel,35#,45#,40Cr,35CrMo,Stainless Steel etcSizeM5-M30,All size could be produced as customer needProduct ...