Sliding Glass Door Mortise Latch/Lock, 3-7/8" Hole Center to Center, Aluminum, 45 Keyway, Round Faceplate. Overall depth 1-3/16". Excellent for either wood or aluminum door applications. Integrated keeper and lock for positive anti-lift protection. Plated steel hook is mounted in an anti-friction pivot, encased in aluminum housing. Used by Pennco and other manufacturers.
