I have a Allen bolt which has a domed head. Unfortunately the head is rounded. The location of the bolt means I can't get in to make a cut and remove it with a screw driver.
It is mounted to some plastics so I don't want to hammer into it in fear of cracking the plastic.
I'm thinking of filling the hole in the bolt with some metal putty (like Loctite ultra repair epoxy) and making a screwdriver in that epoxy. Once hard I should in theory be able to unscrew the bolt.
Is this a viable idea? Would it work?
Edit took a picture today of said bolt. I have tried drilling it out with left hand bit, here's what I'm dealing with: