Torque values for Motor Mount?

Can anyone tell me what the torque values are for the motor mount by the serpentine belt on 2002 Malibu?

There are two 18mm bolts that go into the motor side of the mount, and two 15mm nuts on the studs on the mount itself. I need to be sure I have them tight enough... but not too tight!

I had this off when I did the "intake gasket job", but I cannot find this torque value anywhere in my Haynes book, and I don't have a real book for the car.

Thanks!