If you have one of those panel removal tools that look like a pickle fork, wedge it between the bolt and pan. Keep it wedged under pressure against the bolt as you loosen very slowly feeling for the bolt to engage a thread in the pan. The thinner the wedging tool the better. For example, I have a piece of sheet metal about 2mm thick that's rolled into a crescent shape, forked on one end. I used it on stubborn aircraft fasteners. Good luck.
|