The local tire shop cross threaded one of the lug bolts on my 2000 VW Passat. About 1/2 to 1/3 of the threads on the bolt that normally engage were damaged. I could not turn another lug bolt into the female threads in the hub without it trying to cross thread, so the wheel hub threads were clearly damaged too.
The tire shop offered to "correct" the problem by tapping new threads into the wheel hub. I'm concerned that the metal that composes the new threads will be fatigued and thus not as strong.
The tire shop said this is a safe fix, but I'd like another opinion, as they are bound to be biased by the fact that it's cheaper for them not to replace the wheel hub.