Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Thanked 31 Times in 31 Posts
Rep Power: 12
Picture would help Souljour.
It may in fact have been bolted, with the nuts down inside now - when building the boat they had access to areas that are now closed off.
On the other hand, 20 ft boats aren't exactly built to blue water standards it may well have been just screwed in.
If you think it will be too flimsy here's what you do. Go to the hard ware store and look for threaded inserts, open up the screw holes by drilling them bigger, reefing out the core material and back filling it all with epoxy, then redrill and epoxy the threaded inserts in.
The threaded inserts can then be used to bolt the thingy to the watchmacallit without nuts. Use flexible caulk under the heads of the bolts as bedding to prevent water ingression.