... , 10.9S 2) ASTM A325 A490 1/2 High Strength Bolt with Large Hax Head for Steel Structure Standards: ... M30 10.9SProduct information Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless ... , Galvanized, Black, Nickel, Chrome, H.D.GPackingCarton, Box, Bag, PalletQuality AssuranceISO 9001 Our factory Packing Process Quality Management Systerm ...