A little thick right now but the threads are right.

Well after a lot of measuring and websearches I was able to get the right tap to thread it for these particular nibs. Now I just need to shape it just rightish and give it a go...

I probably should have done the shaping first but I wanted to know if this was even going to be viable. So far it is... And I have a dozen other blanks of I screw this up on the way to get the shape close to right. LOL. I'm going to have to find the right bushing to put this on the mandrel for future ones.