... ,316 2) Surface: Black, ZP, YZP,Dacromet 3) STD; DIN, ASTM,IFI Description: Stainless Steel FastenerStainless Steel FastenerBrand NameGWOriginal of ... steel, brass and etc.Standardstandard fasteners (GB, DIN, ANSI,JIS AND ) and non-standard.GradeClass 4.8, Class 6.8, Class ... , quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples ...