What is the most similar simple machine to a screw?

The most similar simple machine to a screw is the inclined plane. Both the screw and the inclined plane convert linear motion into rotational motion and can be used to lift objects by applying force. A screw can be viewed as a spiral inclined plane wrapped around a shaft, allowing it to convert rotational force into upward movement. This relationship highlights how both machines facilitate work by reducing the required force to lift heavy loads.