I am in the process of refastening my 1951 concordia yawl and have come across a few fasteners that will not come tight even after going up two screw sizes. I have been told that the best way to deal with these is to drill the hole with a larger size drill bit and plug the hole with a dowl and epoxy.
Should I use a mahogany dowl? How big do I drill the hole. The boat is fastened with size 14 two inch screws and I have been using size 16 to refasten. I have heard of variations of dowl shapes. Any help would be most appreciated.