High Strength Nut for Steel Structure Standards: 1) ASTM A 325 A490 2) DIN6915 M16-M30 8.8S,10.9S ... High Strength Nut for Steel Structure Standards: 1) ASTM A 325 A 4902) DIN6915 M16-M30 8.8S,10.9S 3) AS1252 ... , IFI, JIS, ASThreadMetric, UNC, UNF, BSWFinishPlain, Galvanized, Black, Nickel, Chrome, H.D.GPackingCarton, Box, Bag, PalletQuality AssuranceISO 9001 Our factory Packing ...