greekdiver wrote:Spend the money and buy stainless. Fill them up with grease or anitsieze and tighten them down.
I only play mechanic and boat builder on TV but DO NOT "fill them up." You fill the cavity and then go to tighten them down and the grease packs up and hydraulics the thing. As in youRe not able to crank the nut down on the lug, especially with a Harbor Freight impact wrench.
Clean the lug, wire brush it to remove any crap on it, wipe a THIN layer of anti seize on the threads, be sure the inside of the nut is clear of shit and install. Check after the first trip around the block and thereafter at every gas stop or before you load the boat back up at the ramp.