Chevrolet Camaro 1967-2002 - 98+ F Body Caliper Bolt Size?

Hey everyone. I have a 1969 Chevy Nova that I'm doing a brake swap from 98+ F body. I am trying to figure out the size bolt that fits the threads. I've tried 7/16 - 14 which was too loose, and a 1/2 - 13, but it was too big. Anyone know?

Thanks,
Andrew

thats because they are metric. i can't remember for sure but i think they are 11x1.5

That's a lot man. I just figured it was std :)