Reattaching cap?

[rcoster38]

The search function does not care for 3 letter words, so unfortunately I've come up empty handed.

What is the best method for reattaching the cap to the hull? It seems a bit ridiculous to just screw the thing together, though I guess there will screws going in for the rub rail either way. Adhesives? Glass? Would that be ill advised in the event that I ever have to pull the cap off again in the future?