Dacromet Screw 1.Standard:DIN,ANSI,BSW,JSB,ISO 2.Material:carbon steel,stainless steel 3.Finish:Plain,ZP,YZP,Black,HDG,PTFE ... :carbon steel,stainless steel,brass3.Surface treatment:Plain,ZP,YZP,Black,HDG,Nickel,Dacromet,PTFE MaterialCarbon Steel,35#,45#,40Cr,35CrMo ... ,8.8,10.9,12.9,SUS304,SUS316Surface treatmentZinc,Chrome,Black,Nickel,Dacromat,HDG,Protective oilStandardGB,DIN,JIS,ANSI/ASME,ISO ...