Just a bit of rust help.... When I was in amateur radio, any outside nut and bolt work I did, I sprayed them with clear lacquer (several coats) and never had a rust problem. I put up a flag pole, sprayed the top ball, pulleys, nuts bolts and all that was exposed and even sprayed before assembly consequently no rust to this day. I keep 2 cans around all the time. Lawn mower nuts and bolts...I also sprayed..it surely works and doesn't take any time to do so. Just my bit of preventative.