Help with Broken Screw

[reconciler]

The screw on the front of the trigger guard on my Colt SAA snapped off while trying to loosen it. I have done the following with no luck;

-Drilled out the center of the screw and used an easy out bit...failed, snapped the bit
-Red locktite a tight fitting allen wrench into the screw...failed locktite gave way

Does anyone have any tricks or ideas to help? I would sure appreciate any advice.

[tdbarton]

Did it previously have loctite on it? If so, heat the screw with a soldering iron.

Rusted in place? Use penetrating oil and allow to soak for 48.

Then, if nothing else works, try to file/dremel a slot in the screw (sounds like this might not be possible) and remove with screwdriver.

Barring all this, the screw may have to be drilled out.

[williamiorg]

Best penatrating oil I have worked with is Corrosion-X.
Good penetration and a secret sauce that kills corrosion.

[bigbore5]

Knock-r-loose by CRC works great for a penetrating oil too