Take one out, mic all sizes, and go to a good parts store that has Dorman drawers with wheel studs and look that's what I did. But being where you are a Dorman catalog on line may be the best deal for you. I did get longer studs for my hubs, early Ford, on my LSR roadster that fit the same spline on them but it was in 1985 so I don't remember.
Plenty out there and available. Match the thread, shoulder and knurl diameter in a longer stud. ARP, E-Bay, Dorman, JC WHITNEY etc.
Zzz, that a question...or a statement ? A question normally includes a ? (question mark) at the end of the sentence not a period (.) . Mike