# Does the thread pitch multiplied by the lever length equal the mechanical advantage?

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- billrussell42Lv 74 weeks ago
a threaded rod and a lever are two different types of mechanical advantage.

for a simple lever, MA = a/b where a and b are the distances from the pivot point

for a threaded rod, MA = 2πr/L where r is the length of the lever that turns the rod and L is the distance thread to thread.

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