Sheet Metal Screws 1.Size: M 2.2--M6.3 2.Length: 3-120mm 3.Finish:ZP,HDG,Plain Description: Sheet Metal Screws Sheet Metal Screws Brand NameGWOriginal of PlaceShanghai ChinaMaterialCarbon steel ,stainless steel, brass and etc.Standardstandard fasteners (GB, DIN, ANSI,JIS AND ) and non-standard.GradeHigh strength gradeSurfaceBlack, White or Blueness Zinc (Cr.3 or Cr.6), Yellow Zinc, Dacromet, Hot ...