I am doing this job right now. Use blue locktite and apply to about 1/4" or the bolt about 1/8" in from the end.
I let it dry overnight and then tighten to 87 ft/lbs.
The pads that were in there had floating plates and the replacement pads had fixed plates so I applied anti-squeal paste and anti-sieze on the sides.
I'm not thrilled that for the backs the pads I got are ceramic, I don't know what to expect. I am happy with the fronts being normal type.
I've done a few brake pad replacements before, this time in order to push the caliper pistons back in I released the bleed valve - WOW what a difference, you can almost push them back in by hand. Much eaiser that a "C" clamp. I am not worried about air getting into the lines, I will pressure bleed when I am done.
1995 e320 w/207k