Loctite?

golf4283 said:
Take it to a shop and hopefully they will have the right tool for the job. That or find the company that made the bolt(which is pretty hard to do). Any other ideas I have heard involve things that can possibly damage the nut.

Like what kind of tool are you talking about?
 
You can't screw up the bolt or nut even without using heat. It's just glue people, it's not welded. Doesn't take a lot to keep a nut from unscrewing in the majority of cases, just a little something to stick them together, that's all Loctite is.