I am about to install a Bimini on my Mac 26S. It came with screws to install all hardware. Will this hold up, or do I need bolts and nuts? Also wondering if anyone has ever used Lexan for sealing deck hardware. Living where I do, it is hard to find marine sealants and this stuff is available at the local hardware store. Also the directions claim that it can be applied in any weather. "Any weather " is pretty much guarenteed in Montana in the spring! Any thoughts?