... :Self Color,Black,Teflon Coating(PTFE) Black, White,Blueness Zinc,Nickel Plating 3.MS,CS,SS Stud Bolts & Nuts Size 1 ... Zinc (Cr.3 or Cr.6), Dacromet, Hot Dip Galv, Nickel Plating .Packing: CARTON/PALLET ,Standard packing or According to customers ... or Grade, surface If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us ...