... .Material:Gr2 2.Finish:Polishing titanium washer--titanium fasteners-DIN125 M4: titanium washer Item NameTitanium FastenerMaterialPure Titanium and Alloy TitaniumGradeGr1,Gr2 ... ,DIN, IFI,UNC,UNC,JIS, BS,BSW ,ISOSpecificationBolt: M4-M64*L6—300mmNut: M4-M64Washer: M4-M64Surface TreatmentPolishing, Anodizing, Black oxideFeatureslight weight, acid and ...