Right/Left hand replacement studs?

It wasn't me, I swear. I have a friend who is having his 67 Barracuda repainted. The paint shop needed to remove the wheels. They were not aware of the right/left thread (clockwise, counter clockwise is probably the correct terminology) and snapped two off. He has had no luck finding replacement studs for the counter clockwise studs. Does anyone know who or where to get them? Thanks. I'll remember this when I get my 68 Barracuda painted. Oh yes, I explained he could have all of the changed over to clockwise but he doesn't want to go through all that.