Am I screwed???

Location
Delaware
I've used a metal saw blade to fix hacked up threads on a budget to remove burs, etc.

Best tool would be a metric rethread file that comes in some T&D sets.
 
I'd use a file and get it over with (preposition at the end- is that legal?P1030020.JPG P1030021.JPG P1030022.JPG ). However, should the op have poor eyesight, he might consider the above mentioned metric thread file. Here are some pics, now you know the thread pitch:
 
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