I have a small quantity of heavy duty 1/2" wheel studs to fit most C1 cars ('56 - early '60's).
The 1/2" stud size gives you the extra strength for running large diameter wheels, sticky tires or for performance use.
AFAIK there are NO 1/2" aftermarket studs available with the large diameter but short knurl shank to suit stock axles.
These studs are about 3/16" longer than the original 7/16" 1956 - 60 Chevrolet Corvette studs making them suitable for rear disc brake conversions.
These studs suit the large knurl shank diameter used in pre '61 Corvette's - the stud holes just need to be enlarged very slightly.
These studs are USA manufactured obsolete NOS parts.
Selling a set of 10 studs (one axle set) for $50 plus postage.
Please do not ask me to call you or for my phone number. I will respond to all email and answer any questions - thank you.