In article , "J. Clarke" wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Anything "pre 1900, American-made" is vanishingly unlikely to have metric
threads.