If you are going to resort to an angle grinder, use a 1mm thick cutting disc and cut the nut as close to the threads as possible without damaging the stud threads. It doesn't matter if there is still a little bit of the nut left next to the stud thread the combination of the heat and a small sliver of nut on the thread should be easy to remove, if you can't get to it with grips knock it round the stud with a drift.
|