[T3] size and pitch of rear brake drum bolts

[Dennis Stiefel]

> The button heads certainly LOOK nice, but they're a pain to deal with. 

Yeah, it was very difficult to get Vice Grips to get a grip on that rounded
head screw. The teeth marks are still on one of mine.

Jeff '67 Sqbk

We had to take a hammer and chisel to the ones on Clementine when we done
the brakes. That leaves a mark.

Dennis Stiefel
72 Fastback FI MT