On Sat, 08 May 2010 17:16:22 -0500, Ignoramus9556
wrote:

The trigger guard on this kids' Savage Arms shotgun attaches with
screws (which are missing). The thread looks like 10-32, but becomes
hard to turn after appx. 3 turns. Is that possibly a weird thread, or
is it just designed to hold the screw tightly?

Secondly, while I could go to Ace Hadrware and buy two very short
10-32 screws, they will not look original because the original ones
were black. Not really a big deal, but is there some place to buy
matching screws.

i

Guns quite commonly use finer-pitch threads than UNF. It's probably a
10-36.

A possibility:
http://www.sharpshootersupply.com:80/

Or make them on your lathe. You'll have the blackening stuff anyway,
right?