... :DIN, BS, ANSI, ISO,GB Grade:4.6, 4.8, 5.8, 6.8, 8.8 material :Carbon Steel,swrch35 hex head cap screwgradestandardmaterialdiameterlengthsurfacepackagepayment4 ... .D.G 8.8GB 1)product name: hex head cap screw2)standard :ISO, DIN,BS, ANSI, ISO, GB3)size:m8-m20,5/16''3/4 ... )length:20mm-200mm,3/4''--8''5)grade:4.8,6.8,8.86)finish:zinc, black, plain,H.D.G7) material ...