1.Good quality&competitive price 2.TS16949&IS9001 3.Size:M3-M40 4.Length:5mm-350mm 5:Mechanical strength: 4.8-12.9 grade Specification Product Name Hex lag screw Brand NameWDStandard 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" ...