fastener Material:steel AS SS nylon Finish:Zi Cr Cu Ni plated ,HDgalvanized ,Black Standard:DIN ANSI JIS AST Product NamefastenerBrand Namesun-alpsStandard ModelDIN ANSI JIS ASTMFINISHBlack,Zinc Plated ,HOT GALVANIZED,Cr Cu or Ni PlatedMaterialCarbon Steel,Brass, Stainless steel,Spring steelMaterial Class4.8 6.0 8.8 12.9gradeProduct sizeM3-M48 1/4"-3"packing listIN carton with palletsDelivery ...