... 1.Size:M3-M100 2.Grade:A2-70,A4-70,carbon steel4.8-10.9,B7 3.DIN975,DIN976 or customizing 4.ISO ... rod :Carbon steel, Alloy steel, stainless steel or according require.3. Grade:Metric standard: Grade 4.8, Grade6.8, Grade8.8 ... .Inch standard: Grade2, Grade5, Grade8, B7. stainless steel , A2-70, A4-70, A4-804. Demension:Metric size from M3-M100 5. OEM ...