Single Keyed Entry Classroom Door Knob Set Lock from the Tulip Collection The outside knob is locked and unlocked by a key while the interior knob is always unlocked. Latch: 1 1/8" x 2 1/4", Square corner faceplate, 1" housing diameter, 1/2" throw Strike: 1 1/4" x 4 7/8", ANSI Square corner, no box Cylinder: 6-Pin solid brass, keyed 6-pin, c123 keyway Door range: 1 3/8" - 2" Caution: Double cylinder locks on residences and any door in any structure which is used for egress are a life safety hazard in times or emergency and their use is not recommended. Installation should be in accordance with existing codes only.
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Build.com | [show price] |
I had various doorknobs from Schlage, but Schlage D70PD-TUL Tulip Heavy Duty Classroom Door Knob Set Satin Chrome Knobset Classroom seems the unsurpassed!