F1852 steel structural bolt 1)10.9 grade 2)With round head and ... -M30 4)carbon steel or alloy steel High strength steel structural bolt1)Property grade: 8.8 or 10.9s2)Alloy steel ... , IFI, JIS, ASThreadMetric, UNC, UNF, BSWFinishPlain, Galvanized, Black, Nickel, Chrome, H.D.GPackingCarton, Box, Bag, PalletQuality AssuranceISO 9001 Our factory Packing ...