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julie78787 t1_j469nx0 wrote

Reply to comment by Bwyanfwanigan in What does it mean to torque a screw to a specific torque? by alucemet

It actually doesn’t because the coefficients of static and sliding friction are different.

There are practical implications of that, but unless you assume frictionless parts, the torque immediate prior to motion will be greater than the torque immediately after.

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fighter_pil0t t1_j46hn81 wrote

I feel like this would be a factor for automatic torque wrenches but not manual ones. As you try to hit the torque correctly you usually slow to a complete stop.

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julie78787 t1_j46nf6e wrote

So long as you don't stop, then start, then stop, hoping to hit the correct torque.

Once you stop, the coefficient of static friction will increase the apparently torque, potentially leaving the fastener under-torqued.

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