A cylinder lock uses a rotating cylinder to lock and unlock the door, often requiring a key for operation.CYLINDER LOCK WITH KEY
An FR lock body is a component of a lock that contains the mechanism for securing and releasing the door.FR LOCK BODY
FR ball bearing hinge provides smooth, durable door movement.FR BALL BEARING HINGE
An FR door closer is a device that automatically closes a door after it has been opened. FR Door Closer .
An FR latch with a lock and handle combines a latch circuit with physical locking and handling mechanisms.