Left hand thread wheel studs 66 'cuda

Aloha!

Just though about it while I'm away from the car...

A couple of questions...Does any one know where to buy LH thread wheel studs? The PO snapped two studs (short ones now, still work...just short!) and when I do the brake job I'd like to replace them...since the car is pretty much original...I'd like to keep the LH studs.

Also, can anyone tell me the stud size? I guess I can measure...but I'm not sure how accurate I can measure them while the studs are installed.

Mahalo and Aloha FABO!