As a practicing locksmith (with very few calls, due to the
NYS economy) your best bet is what Joseph said, call
locksmiths near you. I may have an old mortise lockset or
two, around.

You may be able to use a shorter screw, if you're willing to
grind down a screw driver, to fit through the small edge
hole.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Ivan Vegvary" wrote in message
...
Installing an old mortise lockset into a front door.
Lockset was purchased (quite pricey with door knobs, cover
plates etc.) from a restoration hardware place. They
reconditioned all the parts and patinated (sp?) them all to
look similar.

Problem: The threaded lock cylinder needs to be fixed from
rotation with a radially applied screw that is over 2-1/4
inches long. The existing threads in the bronze casing is
8-32. I have three choices:
1) Find a screw of the proper length and 8-36 thread with a
fillister head
2) Find any long 8-36 screw and turn down the head to fit
the hole
3) Re-tap the threads for 8-32 which opens a whole world of
screws.

The problem with option 3 is that all of my 8-32 taps (I
have over 50) are about a 1/4 to a 1/2 inch too short. Have
any of you successfully lengthened an existing tap? I have
mig, tig & oxy but am worried about axial alignment on the
tap extension.

What are the probable result of re-tapping an 8-36 to an
8-32 in bronze? Will I end up with a crappy loose thread
fit?

BTW, tried McMaster-Carr and Fastenall. At McMaster I
cannot find 8-36. At Fastenall, I do find 8-36 but maximum
length is 1-1/4 inches. I would need to buy quantity 100
but at least I would get to practice my screw-lengthening
skills which should be easier than tap-lengthening.

All advice appreciated.

Ivan Vegvary