Changing Rear Shock Absorbers. Astra-J Hatch. Replace or reuse bottom bolts?

[steve1412]

I  changed my rear springs a year ago and I did not replace the bolt and have had no issues.

I just found information on the internet about how to do and didn't see any one mention this. Albeit a workshop manual will have more detail in it.

I can't see why you should have to replace them. It could be because the end of the threads and top of bolt get rusty and can get damaged when removing them.

they are renewed for the very reason that they are torque to yield bolts. most bolts tend to get torqued to a set figure, sometimes with the addition of threadlock compound. Reusing any bolt that has gone through a torque and angle tightening sequence is a risk,  as the bolt deforms, especially in strength and clamping force.
i will re-use a standard torque bolt but any bolt that also has a tightening angle as well, gets binned and i use a new one. especially on suspension, engine and brakes

head bolts are angle tightened, no one with knowledge re-uses them