Primarily used for drop flaps, but can also be used on single doors.

The right-angle strike screws onto the carcass, and the 3/4" (19mm) high cylinder fits through a 3/4" hole in the flap and is held in place with a pair of screws through the cylinder backplate.

Recessing the 1 3/8" (34.93mm) diameter back allows the lock to be used with material up to 7/8" (22.23mm) thick. A nickel-plate collar hides any tear-out on the front face.

Comes with two keys. Requires #4 screws (not included).