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Bob Austin
You asked this same question on Boater Ed--and it will be interesting to see
what the answers on both forums are.
A wood screw is designed to hold in wood. It has a tapered shank and a coarse
pitch of threads. Many fiberglass boats use sheet metal screws--a coarse
pitch and high ridge of the threads.
Machine screws are designed to be placed in a threaded recpitical--such as a
nut or plate which has been taped.
Neither a plain machine screw or a wood screw is a proper fastener on a
stanchion or railings. I understand the problem with no backing plate or
access. However were nuts embeded as the boat was built? A possibility is to
fill the hole as you have, with epoxy and then wax the machine screw as you
insert it into the epoxy before it goes off--thus making a fastener.
Bob Austin.
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