Yes.  General Boats would have used screws.  It seems likely the screws failed at some point for some reason and a previous owner decided to use bolts instead.  One possible reason for the failure is that a mast crutch wasn’t being used, and someone was attempting to lower the mast to horizontal.  

Peter Nyberg
Coventry, CT
s/v Silverheels (1988/2016)

> On Nov 24, 2019, at 7:29 PM, Chris Geankoplis <chrisgeankoplis at gmail.com> wrote:
> 
> Odd that it appears to be thru bolted, yes?
> Chris Geankoplis
> e
> Enosis