inertia said I thought that too,, when I first read the thread,, but googled it,, and learned of several "repair methods".. http://www.stanleyengineeredfastening.com/brands/heli-coil/screw-thread-inserts/types/pipe-thread https://www.bing.com/search?q=pipe+thread+helicoil&pc=MOZI&form=MOZSBR cheers.. Click to expand...