This cylinder lock was designed to only aesthetically match as it was designed specifically to be used in surface-mounted patio door handle sets. This cylinder lock is constructed of brass, it comes finished with a chrome face and features a hardened cut-away tailpiece. It works with vertical and 45-degree keyways (angle is determined when latch is extended to the locked position.
From the Manufacturer
This patio door cylinder lock features a hardened break away tailpiece. It is used to key lock most surface-mount handles. This cylinder fits a Standard Aluminium Patio Door Handle and includes two keys.