1-Cylinder Deadbolt K4 Pewter

For residential single and multi-family entrance doors. Deadbolt thrown or retracted by key outside, or by turn unit inside; bolt automatically deadlocks when fully thrown. 7/8 in wrought brass trim ring reinforced with security inserts. Concealed spin ringrotates to protect against wrenching the cylinder. Solid steel door frame reinforcer with 3 in screws protects against kick-in attack. Solid, 1 piece design protects against hammer and crowbar prying attacks. 2-1/2 in steel adapter ring, plated to match, provided for accommodating 2-1/8 in crossbore. Hands free installation. DOOR PREP: 1-1/2 in or 2-1/8 in crossbore; 7/8 in edge bore; 1 in x 2-1/4 in latch face. DOOR THICKNESS: 1-3/8 in to 1-3/4 in CYLINDER: solid brass, 5-pin, tumbler C keyway with nickel