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Definitions for jargon, scientific terms and phrases used at Harwin and across the connector and electronics industries.

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A mechanical connection system that allows two mating halves to be screwed together by means of an additional mechanical fixing or fixings integrated into the connector housings. One half will have an external thread, the other an internal thread. Depending on the design, the parts may be mated before the jackscrews need to be engaged (Mate-Before-Lock), or the engaging of the jackscrews will pull (or 'jack') the mating halves together.