I was hanging a ceiling fan in this room when I discovered that the mounting screw holes in the electrical box are stripped. My dad has suggested using JB Weld putty, letting it cure, drilling it out with a small bit and then using wood screws. I’m a first time homeowner and have neither the confidence nor the expertise to completely replace the box. Is my dad’s route the best course of action or is it a waste of time and/or dangerous to go that route? Thank you!
My recommendation would be to either use a larger sized self tapping screw, or go one size up with a regular screw. You could. Go the JB route, but if it's going to hold up a fan I would rather one of the other two options.
Or replace the box. if you're comfortable shutting off the breaker and switching everything over.