Nanonewtonmeters
Nanonewtonmeters are a unit of torque, which is a rotational force. Torque is measured as the force applied multiplied by the distance from the pivot point. The nanonewtonmeter (nNm) is a very small unit of torque, equal to one billionth of a newtonmeter. A newtonmeter (Nm) is the standard SI unit for torque. Therefore, a nanonewtonmeter represents a minuscule amount of rotational force.
To put this into perspective, a nanonewton is already an extremely small unit of force, roughly equivalent