500 Foreman front axle thread pitch/ size

Redo’ing a buddy’s front end on his Foreman. Right front axle nut was totally seized. Tried impact, breaker bar (split my craftsman socket) and finally cut the nut off with my dremel (took a LOOOONG time).

In the process, I buggered up the threads on the end of the axle. Rest of the axle looks good.

Anyone know what size die I need to recut the threads on the end of the axle?

I live out in the boonies so taking it to the local hardware store isn’t an option. They don’t do metric stuff at the only hardware store in town.