Everybody should read the workshop manual first, even for the simple jobs. Use once 'stretched' bolts and some large nuts shouldn't be re-used and any reference to 'angular torque' is a warning sign. Other bolts not angular torque come new with blue thread lock pre-applied to the threads`. Once a bolt is removed, it's not always easy to spot. If they aren't stretched and at normal torque I will often re-use and add my own threadlock.