berger said:The bolts thread into a through rod. the rod will turn unless you either a) hold the bolt on the other side .
pollo said:There is a solution. That is if you want to do it my way.
Without seeing it, it appears you might need to cut the bolt head off to get to the insert.
Once you can get to the insert you would need to remove it completely and
prepare it for repaiir. This is where I have re-inserted it into the plastic
with fiberglass repair.
Pollo