Outside Knob Always Locked, Inside Knob Always Free; Key Outside Retracts Latch. All Metal Components. Solid Steel Deadlocking Latch Assembly. Rust Resistant Solid Brass Keyway For More Security. Seamless One-Piece Knob For Extra Strength. DOOR PREP: 2-1/8" Crossbore, 1" Edge Bore, 1" X 2-1/4" Latch Face. DOOR THICKNESS: Fits 1-1/4" To 1-13/16" Doors. CYLINDER: 6-Pin, Removable SC1 Keyway, Solid Brass, One Piece; Re-Keys To Schlage. With 2 Nickel Plated, Solid Brass Keys. FACEPLATES: 1-1/8 X 2-1/4 STRIKES: 1-1/8" X 2-3/4" Square Corner T-Strike. BOLT: Steel 1/2" Throw. HANDING: Reversible For Right Or Left Hand Doors. ANSI/BHMA: Grade 2. U.L. Approved 3-Hour Fire Rating.
Heavy-duty cylindrical knobsets; designed for use in high traffic areas such as office building, schools, churches, restaurants, retail stores and warehouses; complies with ANSI A156.2, Series 4000, Grade 2 (400,000) cycles, UL listed for 3 hour fire door. Door range: 1-3/8" to 1-3/4". Backset: 2-3/4" standard. Commercial and Residential. Indoor and Outdoor. Fits standard 161 door prep, Schlage C keyway, keyed different; includes 2 nickel silver keys.