I was trying to install a wheelie bar on my Kraton EXB and went to remove the two screws on the top of the wing. One came out fine and the other one just spins in there. It looks like there is a small nut in there. The nut must be seized on the screw because it just spins with it. How do I go about extracting the screw? I tried smashing some brass flat and shoving it in there to bind the nut, but that didn't work and now I just have brass stuck in there.