hex nut Product size:M3--M64; Standard Model:DIN ANSI JIS hex nut Product Namehex nutBrand NameGuoboStandard ModelDIN ANSI JIS ASTMFinishBlack,Zinc Plated ,HOT GALVANIZED,Cr Cu or Ni PlatedMaterialCarbon Steel,Brass, Stainless steel,Spring steel, Alloy steelMaterial Class4.8 6.0 8.8 12.9gradeProduct sizeM3-M64 1/4"-3"packing listIN carton with palletsDelivery Lead Time30-45days hex nut DIN934