Boat floor attachment

[64oldsguy]

Hey all, I'm looking to refloor my sea nymph cc191. I plan on covering the plywood with marine sheet vinyl. My question is what's the best hardware to use to fasten the plywood to the hull. I've used rivets in the past with no issues but would stainless screws be better?

 

[flashback]

Interesting question! Plywood will shrink and the fasteners could eventually puncture the vinyl. Honestly I don't know.

 

[Bondo]

Ayuh,..... Rivets,...... screws will loosen,....

 

[airshot]

Ayuh,..... Rivets,...... screws will loosen,....

Yes, unless you add a small dab of silicone or my preference is " goop" ...I like the idea of being able to remove the floor if needed, to each his own, but never had a screw come loose with a dab of goop before you screw it in.