Does anyone know the correct dimensions for wheel locks for the SS/SC stock wheels?

I think the thread is 12mmx1.5, but conical seat? Any manufacturer? Or only the chevy ones?

Or am I forced to choose between McGard, Mr Lugnut, or does someone have another recommendation?

 

I don't have an SS but I do have 18's and I have a Gorilla Wheel lock. Not sure if they will make one for the SS pattern but im sure they do.

Just a suggestion, good luck.