This is not good. I have no secret tips.
You have a steel threaded bolt going into an aluminum threaded hub. Sometimes the threads weld themselves together but I do not know if that is your situation unless you are not using enough force.
Backing out a fastner 1/4 of a turn and it does not then easily unscrew is not good.
This is not an uncommon problem on the UK message boards because of the stuff they put on the roads during winter.
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