[Captainfab]

I would first closely inspect the threads to see if they might stand torquing again. If so, then just take a flat file to it and remove the burr. If the threads don't look good enough to torque again, I would consider a thread repair of some sort. I'm not sure if a heli-coil is recommended for a use like this or not. When installed correctly, a heli-coil is supposed to be as strong as the original thread.