Belwith 1129 First Watch Security Mortise Lockset With Skeleton Key Polished Brass

Brass knob mortise lock combo, brass plated steel plates and knobs, key activated inside and outside, requires mortise cutout.

Instructions:1. Fold template (see insert included) along dotted line and wrap around inside edge of door at a convenient height. mark holes A and B through template.2. Position vertical line C in center of door thickness and mark holes as shown. Be sure the template does not move up or down.3. Remove template and drill seven 5/8″ diameter holes 3″ into edge of door where C holes were drawn. Chisel out remaining wood to form a pocket in the edge of the door measuring 5/8″ wide by 4-1/8″ long by 3″ deep.4. Drill one 3/4″ hole on mark A through the door. Drill four 5/16″ holes as indicated through the door to form slot B.5. Insert mortise lock into pocket, draw a line around the face plate, and remove lock. Chisel out the wood within the lines to a depth of approximately 3/32″. Insert lock occasionally to ensure proper depth.6. Insert lock into door and attach with two flathead screws.7. Position trim plates on door in line with lock and attach using eight oval-head screws.8. Insert spindle through hole A and attach knobs at each end of spindle.9. Position strike in line with latch and attach with two flathead screws.