Pin tumbler lock

The pin tumbler lock, also known as the Yale lock after the inventor of the modern version, is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key.

"Tumbler lock" redirects here. For other uses, see Lever tumbler lock and Disc tumbler lock.

Pin tumblers are most commonly employed in cylinder locks, but may also be found in tubular pin tumbler locks (also known as radial locks or ace locks).

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