M&H agraffes

[Ron Nossaman]

Does anyone happen to have any old Mason & Hamlin agraffes laying around
that they would care to sell me? I've changed string scaling and bridges,
and I need bichord agraffes. The stud is .278" in diameter, and seems to be
34 TPI. My other options are either making what I need (too time consuming
and/or expensive, as well as being a stretch on my abilities as a
machinist), modifying what I have (maybe, it might be worth a try), or
tapping the plate out and sleeving down to 1/4", which is what I'll probably
do if I can't find direct replacements. I need four of them this time, but
I've got another couple of potentials pending, so this will probably come up
again. Anyone got an "easy out" for me?

Thanks, 
 Ron