hexagonal lock nut Self Locking Nut 1.Size:M5-M48 2.Finish;Zinc Plated,HDG 3. Standard:DIN985 Description: hexagonal lock nut Brand NameGWOriginal of PlaceShanghai ChinaMaterialCarbon steel ,stainless steel, brass and etc.Standardstandard fasteners (GB, DIN, ANSI,JIS AND ) and non-standard. Size m5-m48SurfaceBlack, White or Blueness Zinc (Cr.3 or Cr.6), Yellow Zinc, Dacromet, Hot Dip Galv, Nickel ...