The screw shaft can be driven by a handle or a wheel.

She was propelled steam turbine driving an electric motor and a screw shaft.

Dreadnought herself, and all British dreadnoughts, had screw shafts driven by steam turbines.

By moving the screw shaft, the nut rotates.

The non-threaded portion of the screw shaft can be a smooth or non-cylindrical shape.

The ring gear is replaced by gear teeth above and below the threaded portion of the screw shaft.

Furthermore, the head sometimes has an internal female thread, with the male externally threaded screw shaft extending from that.

After that he steps back to the big clutch, making sure that the screw shaft is not engaged.

Because of some pre-existing defects O 20 began to take on water at the screw shafts.

Make sure neither wire crosses itself; the wire should wrap around the screw shaft 3/4 of the way.