The meaning of LOCK is a fastening (as for a door) operated by a key or a combination. How to use lock in a sentence.

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LOCK definition: 1. a device that prevents something such as a door from being opened and can only be opened with a…. Learn more.

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Kwikset is a secure door lock industry leader & innovator in home safety with keyless entry and re-keying technology for residential and commercial door hardware

Replace or cut new keys for padlocks, enclosures, cabinet doors, and locksets.

SDC Security Door Controls manufactures premium access control systems, electronic locks, magnetic locks, electric strikes, delayed egress systems, and elect...