Well, after a bit of digging, thinking, measuring, and comparing, I came to the
conclusion that the thread on this brace is just plain odd. I tried fitting a
hole tapped with a 13/16-12 tap (60 deg thread, 0.812 dia) and no go, and it
appeared to be the pitch rather than the thread included angle, but  I am not
sure. Tried another Stanley pad with the same two screw setup and the threads
were close but no match. Still seem to be between 11-1/2 and 12TPI. So, I made
the new pad, bored the center to 0.795-ish, let the thread smoosh itself in very
lightly, and the two wood screws do the primary holding. If I get the incentive,
I may burn a few electrons on the CNC machine and make up test pieces at 11-1/2,
11-3/4, and 12TPI to see what the best fit is, but first, I need to make (or,
perish the thought, buy) a thread milling tool suitable for the thread pitch...

Looks and feels great. I love maple. *** This message was sent from a
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