Screwy 1911 question

[zippy13]

HELP!
Anyone know the thread size/pitch on the trigger stop screw used by Colt in their Gold Cup/NM 1911s?

[Tamara]

I have not a clue, although I can make some phone calls.

Is it missing, or just stripped/buggered?

[zippy13]

Unauthorized absence, I think it occurred when the cat investigated the parts tray -- the thread is fine.