Zephyr Lock offers a variety of built-in key locks including a Spring Latch Key Lock, Dead Bolt Key Lock and ADA Accessible Key Lock. The Spring Latch Key Lock offers the most convenient option for box lockers, while the Dead Bolt Key Lock offers the highest security. Both locks can be used on right and left hinged applications. The ADA Accessible Key Lock is also available for lift-latch applications where there is no turning motion of the key required. Click on a product below for more information.