Sorry if this has been covered before....very hard to find this searching the forum with words like leak & screw
I have a 1958 homemade runabout on a trailer. She's made of juniper ribs/stringers and mahogany plywood. Despite flipping her over and removing/resealing the keel, spray rails & joints I still have small leaks. I threw a hose in the boat and found several leaks. One was from a joint I sealed with "Watertite Marine Epoxy". I had to grind that stuff out and replace with 4200. Done.
The next leak is from a #10 screw. I will put a slightly longer screw in to replace, but what could I put on the screw to seal things up? 4200 feels like a bad idea if I ever want to take it back out. I thought of slick seam, but at 105 degrees in the sun, that stuff would probably not stay in place. Any Ideas?