I have used helicoil to repair threads before, I stripped one side of my rear sway bar bushings and the helicoil fixed it
Edit: I think that's what you mean. I got mine from amazon, Napa,also has them but more expensive. Fastenal also has them, priced comparable to amazon. The kit has the tap and the inserts but nit the right size drill bit but I tells you which one, usually odd size job bits.