... 1 1/4''(M16-M30)5.Surface treatment: Hot dip galvanized6.packing: export carton and wooden pallet or wooden boxbolts and nuts 1 ... span. Structural steel tower masts and other friction-link project. I bolt steel companies choosing the material quality, ... , ASThreadMetric, UNC, UNF, BSWFinishPlain, Galvanized, Black, Nickel, Chrome, H.D.GPackingCarton, Box, Bag, PalletQuality AssuranceISO 9001Our bolts ...