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FACTS FRENZY on Instagram: "Read in caption for details👇 A lock mechanism is a mechanical system designed to restrict access to a space or object unless the correct key or input is used. It operates by aligning internal components in a specific way to allow or block movement. One of the most common types is the pin tumbler lock, widely used in door locks. It consists of a cylinder (plug), housing, and a series of spring-loaded pins. Each pin stack contains two pins: a driver pin and a key pin.