Brian wrote:
One thing I've always questioned - the amount of stretch to give a certain
amount of preload will vary depending on the length of the bolt being
stretched,
What you are missing is that stretch is not the goal, "Load" is the goal.
A longer bolt will in fact stretch
more for the same load than a short bolt, but at a particular torque the
load (also called stress) should
be the same.
I assume everyone know we lube bolts so the torque we put into them does
not get consumed
in friction in the threads rather goes into load in the bolt.
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