CompX DL-200/300

The lock is mounted on the right-hand door. Inside the right-hand door, install the activator; on the non-locking door, install the catch. The latch should be installed inside top of cabinet. The activator pushes the bolt on the latch to the other side to engage the catch. The bolt on the catch side is spring-loaded, allowing the doors to be closed in any order. Turn the key to lock the other door; both doors are now secure. The locking door must be opened first to disengage the bolt in the latch the bolt will slide back, allowing the non-locking door (with the catch) to open.