I won't verbally abuse the guy too much. If he was just trying to buy joints from Ricky Stator, I would be willing to be that they only offer there joints in one meric size near that major diameter and pitch. So as long as he is within a the neighbor hood of the right diameter, he can probably choose the joints he needs.
Now if he was making something to thread the joint in to, that would be a whole different story. I am sure I would wind up getting all worked up and typing a lecture on thread types, design, and manufacture methods. :thumbsup: