This is a mortise lock that has an adjustable， spring-loaded hook latch projection for surface-mounted sliding patio doors constructed of wood， aluminum and vinyl with handle sets with vertical keyway position when in the locked position. It also fits doors using W&F manufactured handles. The mounting hole centers of this lock measures 3-11/16 in. on center， and the rear housing corners are square. Selection Tip: To ensure the perfect match is selected prior to purchasing， the lock will need to be removed to compare the following 4 features (besides the width of housing): 1) The distance of the mounting holes measured from center to center， 2) The faceplate ends; rounded or square， 3) The position of the slotted keyway when in the locked position; at 45-degree angle or vertical， and 4) The shape of the housing corners at the rear; square or slanted.
Used to replace damaged or missing mortise locks in patio sliding doors. Used by W&F and other manufacturers
1/2 in. wide body， 3-3/16 in. tall faceplate， 1-1/8 in. depth， 3-11/16 in. mounting hole centers
Round end faceplate with spring-loaded， adjustable hook latch projection
Installation of this lock should be mounted out of children's reach to help prevent them from opening a door themselves to enter or exit into dangerous areas
Used on a variety of swing-in， hinged door types and can be mounted on， or beside the door casing
This mortise lock works on older systems that use levers (Prime-Line parts E 2033， E 2034， E 2035， E 2037， E 2038 ， and E 2066)
For further dimensional information， please see the line drawing
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