On a bolt, you can sometimes clean out the thread with a knife or hacksaw blade enough to start the nut and tighten it to reform the thread past the damage. In a hole, they make thread chasers that will recut the the thread. You can just run a tap in the hole and it will usually find the old grooves.
thread.
get it out shouldn't be a problem . bracket is bolted to the head i would think. so if its a bad cross thread and has really damage the threads just lightly take the old threads out with drill bit. re-thread it of course if its in a hard to get at spot well that could be a head shaker [good luck]
how many yards are in a skein of cross stitch thread
Thread repair kits are available from your local auto parts store. They come with directions.
by picking everything that was damage
Carefully as not to cross thread the CO plug
It is classed as water damage, and probably needs to be replaced. A water damage specialist could fix the damage, but replacing it is probably a better choice.
You will probably have to re-thread unless you can get a SLIGHTLY over sized bolt to thread and seal
That threaded nipple is removable, replace it.
I have a cross bite too. The orthodontist said that I would need a special device to fix it. the device costs a total of $407.
Fix, mend,repair
smoke alot of pot