Speaking of clutch head bolts and screws, I have found a way to fix a buggered up one by putting it in a vise with copper inserts to protect the threads and hit the top of the head with a body hammer to mash the buggers back in place.
As long as I can tighten it back into place with enough force to hold, and it looks right, I'm good with it. I doubt that I'll ever have to take the vast majority of them back out ever again.