I think the usual move once threads are gone, is to move to a steel threaded insert (helicoil, time-sert, etc) https://www.mcmaster.com/products/thread-repair-

I think the usual move once threads are gone, is to move to a steel threaded insert (helicoil, time-sert, etc) https://www.mcmaster.com/products/thread-repair-inserts/threaded-inserts-3~/ https://www.mcmaster.com/products/thread-repair-inserts/thre...