carbon steel hex bolts 1.Standard:DIN933 ,BS, 2.Size:M2-M42 ... .8,8.8 ,10.9 4.Supply ablity:5000 piec carbon steel hex bolts 1.Standard:DIN933 ,BS,ASTM 2.Class: Grade4 ... .Size:M3-M45 4.Length:1000mm-3000mm 5.Material: Mild Carbon Steel, Stainless Steel(SUS304,SUS316) 6.Surface Treatment: Zinc Plated (CR3, CR6 ...