Mortise Latch with Security Adaptor PlateThis mortise latch is constructed from diecast and comes in a zinc plated finish. It features a single point mortise lock with cast mounting bracket. This type of mortise latch is used on vinyl and wood doors. Used as a sliding door mortise lock for vinyl and wood doors Constructed of diecast metal Features a 45 degree keyway and round face plate Single point lock with the adjustment screw on the face plate The mounting holes are 5 3 8 in. on center