... 10.9S 2) ASTM A325 A490 1/2 High Strength Bolt with Large Hax Head for Steel Structure Standards: ... 10.9SProduct information Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless steel ... strengthMin:940MpaGrade8.8 or 10.9StandardDIN, ANSI, ASME, ASTM, IFI, JIS, ASThreadMetric, UNC, UNF, BSWFinishPlain, Galvanized, Black, Nickel, Chrome, ...