Obsolete Wheel Studs?

[Capt'n Jim]

I recently purchased a Mustang II front suspension kit from TCI for my '39 Chevy p/u and when I took the completed project to my local auto shop to have the alignment tuned in they promptly stripped one of the wheel studs. They could not find a replacement stud that matched so they installed what they had. Works, but looks ugly. All TCI was able to do was state that they buy the rotors & spindles from you... "good luck". It is a 7/16 thread with a short un-threaded lead in and a .55" dia. spline.
Dorman and all the parts houses do not have such an animal. Dorman say they did but it is obsolete. Any suggestions as to where to get these?

Thanks in advance for any help.

Capt"n Jim