F51V GEO 619 Keyed entry function unlocks when door is opened from the inside, allowing you to leave quickly, conveniently & re-enter easily. Use with 1-3/8 in. to 1-3/4 in. door. Guaranteed to fit on standard pre-drilled doors. Lock & finish backed by limited lifetime warranty. Easy installation with Phillips screwdriver. Self-aligning screw holes make installation. Universal latches slide easily into place and require no tools or manual adjustments. Certified Commercial Grade 2. Satin nickel finish.