Coating Raw Material Coating Type Uncoated Zinc plated Yellow zinc plated Black zinc plated Zinc nickel Zinc flake coating grey Raw Material Steel 8.8 Steel 10.9 Steel 12.9 Stainless Steel A2 Stainless Steel A4 Polyamid PA 6.6 DBDKdsKSM3185,5332,5M4207443M5228,5554M62410665M82813886M10321610108M123618121210M144021141412M164424161614M18–––––M205230202017M246036242419M307245303022M368454363627