I had one grabrail pull out - captive nuts and all - and removed the other one to find only two of the nuts holding it in. I am considering just ditching the nuts and filling the holes with MarineTex and screwing the grabrails back on directly to that. Has anyone done that before and has it caused any problems? I've used MarineTex to reattach other deck fittings and it's fantastic, but these are slightly larger holes (since I'm filling in for the screw and nut not just the screw) and the plastic grabrails themselves aren't exactly durable.