In my case it was a simple job to chuck a few of the
screws in the
lathe and skim the heads down by 1 or 2 mm overall diameter, but it
would not have been much more effort to put them in a an electric drill
chuck and hold a file against them. If you can't find the correct ones
perhaps you could try that approach.
Steve,
That is my backup plan. I am hoping that with all of us hoarders...err I mean
conservationists somebody has screws laying around ;). Failing that and if I can't
find something new that is suitably sized I would go with the file down route.
-Ali