J54-DOV-630 PASSAGE (d) Features: BHMA Grade 3 Screw posts guide screws into place for easy installation Fits Standard Door Prep Lifetime mechanical warranty and 5-year finish warranty Key Product Attributes: Keyed Entry (Single Cylinder) Function: Schlage single cylinder keyed entry door lever sets can be locked and unlocked from the exterior with a key, and then locked or unlocked from the inside with an associated turn-button. While primarily used to secure entrances and side doors, it can be used anywhere a little extra security is desired. Specifications: ANSI Certification: A156.2 Cross Bore: 2-1/8" Handing: Left, Right Edge Bore: 1" Cylinder: 5 Pin C Backset: 2-3/4", 2-3/8", Adjustable 2-3/8" or 2-3/4" Door Thickness: 1-1/2", 1-3/4", 1-3/8", 1-5/8"Additional J54-DOV (This Model): Keyed Entry Function