Hello Peter, thanks for your answer.
When the red face ends, thats the point wher the threads on the shank touch the threads in the hole.
First step: bolt pretension
second: working load ( 5,5MPa Pressure)
Here it says adjustment reaction: 0,1736mm.
And deformation = FL/AE = 48458N*42mm/(2*10^5MPa*PI/4*12^2) = 0,089977mm
I am confused?
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