Valve Question

Well, I’m having a hell of a time getting the valve out of the damned tank.
As such I’ve not been able to provide my machinist a critical piece of info to
complete the tank angle proto…

In an effort to not slow her down, can someone provide me the thread
count/info for the bottle-2-valve threads (shown below)?

Thx in advance for your help!

NOTE: Thx to Tony for use of one of his stock images.