Hey Kyle; Since you start out this missive with; "Cross thread, damaged thread" I think it should be pointed out here that using a tap or die to repair threads is a bad idea. Or as our British friends might put it; "Bad Form". 🙂 Taps and dies are for cutting threads. Many, possibly most, bolts in industry are formed rather than cut . That means the metal of the bolt shank is moved around to create the threads, not cut. One removes the metal and the other simply moves the metal to create a thread. The same is true of female threads, in fewer cases. Formed threads are stronger and tend to last longer. Now if you have a thread that just needs to be straightened, use a re-threader, rather than a tap or die. A quality re-threader will also tend to re-form the threads rather than remove metal. Re-threader sets (they tend to come with both threaders for both male and female threads) are fairly inexpensive and should be in everyone's tool box. Now if you have a bunged up thread, but don't have a re-threader tap or die you can make one. In the case of a bad female thread, just take a new bolt, with good threads, and use a Dremel or similar cutting disc to cut lined along the length of the shank. This will create reliefs that give a place for gunk or loose material to go when you are re-threading a hold. Use some lubricant when re-threading just like when tapping. Any good tapping fluid will work here. Got one that is particularly stubborn? You can always turn the bolt or re-threader into the hole till it gets tight then tap the head with a hammer, then turn a little more. The shock loading will tend to straighten more damaged threads and help them to re-form back into useful threads. Yes, it takes patience and time, but when done properly it will save threads and greater aggravation over time. The same rules and techniques work on trying to straighten out male threads, if you can't find a good new bolt. Now if the female threads are just too far gone, then it's time to break out the Threaded Coil insert as sold under several brand names, but I think that would be another great article at a different time.
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