как вариант-уточнение
напр.: Single-point locking is a locking system in cabinet doors where locking takes places only at the point halfway up the edge of the door, where the latch engages with the doorjamb. The term is most often used in items like lockers, where it is contrasted with the much more secure three-point locking, which uses movable rods to secure the top and bottom of the door when the door is locked, and the term is not normally used in situations where single-point locking is the only option normally found. https://en.wikipedia.org/wiki/Single-point_locking

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Note added at 7 days (2019-02-07 15:58:31 GMT) Post-grading
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