I have the mast mount installed onto an 8ft galvanized pole, looks great. I see that I put the Storm in the top hole, it just sits in there I guess, and the Sky2 will remain in its grey mount bracket and that bracket is then mounted lower on the mast, with two u bolts I think (hard to tell in the googled pics). I do not see any U-bolts for this bracket mounting to the mast. Anyone have the size of U-bolt? The 4 holes for the mount to the Sky2 bracket seem very small and I haven't found that small (but wide enough) of U-bolts at Lowes.