Hager Standard Duty Grade 2 Office Door Knob Set from the 3500 Collection

3500 Collection Standard Duty Grade 2 Office Door Knob Set The Hager 3550 Grade 2 office knob set provides a perfect combination of value and performance and is the ideal choice of lock for typical commercial applications. It is an economical alternative to Grade 1 when Grade 1 is not required. Hanger's 3500 Series lock offers superior dependability and is backed by a lifetime warranty. Features: The office function locks the outside lever with a push button until unlocked with key or by rotating inside lever. The inside lever is always free making it panic proof. Inside and outside rose liners contain independent high strength torsion springs that allow the levers to move bi-directionally without lever sag. Includes ASA strike. BHMA Certified ANSI A156.2 Series 4000 Grade 1 ANSI A250.13 Severe Windstorm Resistant Component UL/cUL Listed for all functions up to 3 hours Specifications: 2-1/8" Cross Bore 1" Edge Bore 1-3/8" - 1-3/4" Door Thickness 3" Rose Diameter 2-1/2" Projection 3/4” (18 mm) diameter stai...