Used with Mortise Style Handle Sets . 4-5/8 (117 mm) Screw Holes , 45 Degree Keyway Best Mortise Lock | Jen Reviews This unit can withstand approximately 1000 pounds of force horizontally and vertically to resist a pry bar attack or an attempt to lift the door off of its track. Mortise Latch CRL E2164 1/2" Wide Round End Face Plate Mortise Lock With 45 Degree Keyway CRL 1/2" Wide Stainless Steel Round End Face Plate Mortise Lock with 45 Degree Keyway for W&F Doors · Item # : E2199 -1/2 Face Plate., Vertical Keyway. 45 Degree Keyway | 4-5/8 Screw Holes | Minimum Order: One Package (one lock per package). View full description