Description Locked from the outside, but unlocked from the inside when closedFigure 8 style 6 Pin Interchangeable Core CylinderCylinder with interchangeable & re-keyable cylinder coreWith 1 control key and 2 operating keysA specialized “control” key for insertion and extraction of the coreBackset: 2-3/4″ Backset, non-adjustableStrike: ANSI StrikeDesign: Regular LeverGrade: 2Series: C2000Collection: Storeroom3 hrs fire rated