I recently began repairing the broken SS screws in my Catalina 350. We got saltwater on the sole a few years ago due to a "drip less shaft seal". After some time, some of the screws looked corroded. The heads started to pop off with no way to reach the screw. When I tried to remove other screws. Several more broke off below the surface.

The solution I found is a hollow wood screw extractor
http://www.woodcraft.com/category/6/1001086/2000983/Screw%20Extractors.aspx
Using a drill in reverse, you bore out the wood and screw to 1/4" then plug with a glued in 1/4" dowel, then re-drill and install the new screws. Careful, hollow extractor can fracture if you aren't careful.




The solution I found is a hollow wood screw extractor
http://www.woodcraft.com/category/6/1001086/2000983/Screw%20Extractors.aspx
Using a drill in reverse, you bore out the wood and screw to 1/4" then plug with a glued in 1/4" dowel, then re-drill and install the new screws. Careful, hollow extractor can fracture if you aren't careful.


