Review on Andersen Security Latch - Auxiliary Lock by Chris Kirby

I purchased this lock and installed it on an Andersen sliding patio door in my home. interfere with the protruding rib along which the door rolls. If the instructions had told me to move the lock about 1/8 inch from its shown position, I wouldn't have had to file the hole and cut the plastic bushing piece. The lock works fine. My advice is to make sure the hole drilled in the rail and the latch position is such that the hole drilled in the rail is centered on the flat part of the rail.