Added the threads for c mount adapter, so I can jam it in a guide scope.

This adapter: https://www.aliexpress.com/item/4000597237028.html?spm=a2g0o.order_list.0.0.21ef1802iTKpHC

I think I used threadlib, and had to add the 32-un-1 to the thread table and remake. If I recollect I also bumped up the diameter, and it fits way better.