Thanks for all the thoughts guys. Gettin some good discussion goin now. I dont think there is quite enough room for cutting threads. The total depth of the bore is only about .115". The you put a .025" gasket on top of that. Couple that with it being internal threads to a shoulder, i dont see that happening.
As far as pressing the button in place, that was my fault. Two light taps and it sat right in place. I wanted to make sure and began beating the hell out if the poor thing. Shoulda never happened. Good call AZ on the solder. I wasnt sure if it would stick or not. Im gonna try another attempt this week. Use a .002" press fit and some good Krazy glue. I'll keep you posted.
In the meantime i was able to take one of my spare cv slide sets and get it on my bike to replace a broken button set. Was glad i was able to get it done without pulling the carb rack again.
If you go fast enough your never in one spot long enough to get hurt