Sorry but of no help to you I just go till I feel if i much more it tight enough and not goign to come loose without goign that tight the thread will strip.
It's a feel you learn over years. or you can improvise.
10 Nm is aprox a 1 kg weight on a 1 mtr lever arm.
So if the spec calls for 5 Nm and you have a 200mm long Allen key think of putting a 2.5 kg mass on the end of your Allen key.
Z
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