In this model you are screwing into the same steel that the ring gear is made of. You will have good threads unless you cross thread. The Lug Bolt is also steel. I have never had a problem in my 100K plus on this bike. I do not think the torque is all that critical Good and tight.

I mark them just in case.

On the hex heads as originally made, the lug bolt threaded into aluminum and torque was critical. Now they are steel, I still mark but no worry now.