I was putting my ULE body onto my rail and trigger frame and as I was tightening up the screw the little nub just broke off. The little cylinder on the bottom of the body that the screw goes into that holds the trigger frame, rail, and ULE body together in the front. I did not over tighten it and it looks like it broke cleanly off almost smooth. Is there a way to fix this (JB weld) ? Any suggestions of what might have been the problem? The body was room temp, I never crank down the screws because im to afraid I might strip one out, and I take care of my stuff.

Any suggestions would be appreciated.