Rear brake caliper bolt...hex head size?

[Craig D. Niederst]

I will be doing the rear brakes and rotors on my '92 100S this evening, and from a quick look at the caliper last evening, noticed the caliper mounting bolts are of the hex head variety. Since I am away from my Bentley at work, and the Sears is on the way home, does anyone know the hex head socket size for these bolts? TIA.

Craig
'92 100S (99k)
'86 CGT (213k)