Almost all of them for the panel. I am not sure what size they are.
Find out and get back to us, then. We'll wait....
Just kidding. If the threaded parts are simply stripped a bit, it's POSSIBLE to save face a bit and try placing stranded 16 gage wire in the hole and inserting the screw and tightening it GENTLY. Don't overdo it. You may get away with that. If the bosses are cracked, you may have to fill and drill with some plastic filler or something and make new threads. Just depends on the damage.
This is someone using solder wick braid to make a wad of material on the end of a screw to do basically the same thing. Worth a shot? Just an idea. If not, you may need to fill the holes with epoxy or something and redrill them.