Leon wrote:

Charlieb, Spray the screw with something like TopCote and make am
impression of the screw with some Epoxy or Bondo and use that for
your own special tool to remove the screw or let the epoxy stick and
remove the screw, then put you own screw back in.

Or use a screw extractor to remove the "special" screw and replace it with
something more consumer-friendly.