If you can, you'll want to torque the bolts with a torque wrench. The bolts being used in my application are 8mm. Bolts with 8mm threads are torqued to 120 in/lbs. If you don't have a torque wrench to do this, hopefully you have a little experience in working on cars and can use your "elbow torque wrench" so as to not over or under tighten them :-)