The Carbine LBX Camlock is a new superior-security lock that is not vulnerable to the simple master-key hack that affects most camlocks. Instead, the Carbine LBX is a C4 keyway camlock, the very same pin-tumbler key system as your front door. This is far more secure than the wafer camlocks most commonly used. Ideal for lockers, cabinets, cash boxes or letterboxes.