I have tried to find a solution to this and I can’t seem to find one. I searched the forum and found that others had a similiar problem but the nut insert came out. My problem is the nut in the lokbox fin box is spinning with the screw. So I can turn the screw but it doesn’t back out or thread in, it just spins. I have tried applying up pressure to screw as I unscrew and that doesn’t work either.
so you are trying to get the screw out? Try putting a drop of super glue on the tip of the hex head....glue it into place in the screw. Hopefully mission accomplished. Just don't over glue, or you'll know what will happen.