On 09/22/2010 04:42 PM, Doug Miller wrote:
In , "J. 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.
Unless, perhaps, it was built by a French family displaced by Royalists
after the revolution.
My bet is on 1/2-12.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at
http://www.wescottdesign.com/actfes/actfes.html