Originally Posted by
Kontact
What was sawed off is wider than the hole, so prying it out isn't going to work.
Your best bet is probably something like construction adhesive which is both sticky and has volume. That will catch and the metal parts better than a thinner glue or a less sticky caulking.
True, however... the bit that was sawed off is probably very weak, and if you can grab it w/a needle-nose pliers, it may break into smaller pieces; or you can bend it so that it can make it's way out of the existing hole. But yeah, this could prevent them from ever being extracted and what you say is correct, "catching" them with a bit of silicone adhesive (Tec 7) would solve it too.