High Strength Bolt with Large Hax Head for Steel Structure Standards: 1) ISO 7412 M16-M30 8.8S, 10.9S ... 1/2 High Strength Bolt with Large Hax Head for Steel Structure Standards: 1) ISO 7412 M16-M30 8.8S, 10.9S ... , IFI, JIS, ASThreadMetric, UNC, UNF, BSWFinishPlain, Galvanized, Black, Nickel, Chrome, H.D.GPackingCarton, Box, Bag, PalletQuality AssuranceISO 9001 Our factory Packing ...