Definitions for "Jackscrew"
Keywords:  screw, illust, threaded, connector, rod
A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5.
(connector/accessory) A mechanical fastening device (one or two per connector) used to draw mating connectors together and to separate them. Includes a threaded screw on one connector that engages a threaded bushing on the mating connector.
Synonymous with expansion screw.