This is a good article on Torque to Yield bolts:http://www.robbos.com.au/myweb/Tech_Bolts.htmThe Honda service manuals specify torque values and specifically tells you to replace certain parts, i.e. axle nuts, when they are not to be reused. While it is a good practice to replace important bolts that could cause you serious grief if they break, it is not absolutely necessary.Check out www.helminc.com if you aren't using the factory service manuals and want to to the very best for your car.Good luck!