Countershaft pitch for the threads

I want to run a die over the threads that are mangled up on my countershaft. Do you guys know the thread pitch?

I just had to fix my blunder getting the nut peen undone. I used a M18 x 1 mm round die that I purchased on Amazon. I first ordered a hex die in M17 from Drills and Cutters. They have the M18 x 1 as well, but I went for the free shipping. I wish now that I got the hex die from Drills and Cutters.”Fortunately” for me, the damage I did flattened the threads enough that they are below the thread cutters and I could hold the die by hand.