a lock in which a cylinder rotates to move a bolt; tumblers are pins; inserting the key lifts and aligns the pins to free the cylinder to rotate

A cylinder lock protects setup information on time clocks. This prevents tampering and fraudulent work hours.

A lock in which the locking mechanism is controlled by a cylinder.

Door lock whose tumblers are enclosed in a cylinder. The tumblers are aligned with a key, allowing the lock to be turned.

A cylinder lock is a lock in which a cylinder must rotate in order to open the lock. The cylinder may be held in place by a variety of locking mechanisms, including the pin tumbler lock, the wafer tumbler lock and the disc tumbler lock.