This mortise lock is constructed of steel components with rounded faceplate ends. It features an adjustable, spring-loaded hook latch projection, and it can be used on sliding patio doors constructed of wood, aluminum and vinyl. This lock works with mortise style, surface-mounted patio door handle sets with 45 degree angled keyway positions when in the locked position. The mounting hole centers of this lock measures 5-3/86 inch from center to center, and the rear housing corners are secured with mounting holes that are 3-15/16 inch on center.

• REPLACE OLD OR BROKEN DOOR LOCKS - When your sliding door mortise lock is broken or old, don't replace the door entirely, just get a new mortise door lock
• FOR SLIDING DOORS - This mortise lock replacement can be used on sliding patio doors constructed of wood, aluminum and vinyl, and fits on W and F manufactured handles
• 5 DEGREE KEYWAY - The keyway of the mortise door latch rests at a 45 degree position when the hook is fully extended in the locked position
• STRONG AND DURABLE - This patio door mortise lock set is constructed of a corrosion-resistant stainless steel housing and stainless steel faceplate
• DIMENSIONS - The mounting holes of the mortise latch are spaced apart at 5-3/8 inch on center