Citation: Daniel Konstanski, The Secret Life of LEGO Bricks: The Inside Story of a Design Icon (Unbound, 2022). — p. 22.

Clutch power is created by the opposing forces of studs pushing out and walls trying to pull back in. While the ideal strength’s value must remain secret, it is a defined number measured in newtons.

Ideal clutch power is described as the force (in newtons) required to take two pieces apart.