Does anybody have a KH 4-piston mounting bolt around that they can post the dimensions of?

7/16" fine thread. Length? shoulder length? shoulder diameter?

Has anybody managed to install the calipers without these bolts?

Can bushings just be installed into the caliper to allow use of regular machine screws?

Could the spindle holes be drilled and helix-coiled to accept Mustang bolts?

Please advise.

Thank you.