please help!!! rear z32 calipers

[sils15]

Scored some rear z32 calipers from the junk yard today for 27 bucks but apparently wasn't to lucky because one of the rear calipers i got were missing 3 bolts that hold the half's together.
i guess the person trying to pull them didn't know how to take them off.

ive searched through here, and google trying to find a specific torque number for the front and rear bolts holding the halfs together but i only came up with this website. Metric Bolt Specs
if you guys could please help me out with that?
also if you guys new the tread, pitch and grade of the bolts for the front and rear caliper bolts holding the halfs together 2 that would be great thanx zilvia