The exceptional look of the Molten Bronze collection Deadbolts is a style upgrade for any home. Feel secure knowing these deadbolts exceed Grade 2 BHMA standards while maintaining a design focused look. You can feel comfortable knowing that the quality of Weslock ensures that it will look beautiful for years to come. Features: ANSI/BHMA Grade 2 Certified Quick and easy installation Adjustable 2-3/8" or 2-3/4" Latches Limited lifetime mechanical and 10 year finish warranty 1" throw bolt with two hardened steel rollers to prevent sawing Heavy duty security strikes with 3" screws Weslock keyway (optional Schlage keyway) Product Technologies: Double Cylinder Function: Weslock double cylinder deadbolts are keyed on both sides of the door and are only locked and unlocked via a key. Often times they are used on doors where glass is near the door that could be easily broken and the thumb turn on a standard single cylinder lock would be accessible. Caution: Double Cylinder locks can pose a safety hazard in times of emergency due to requiring a key to unlock. Please check local codes before installing. Specifications: Backset: Adjustable 2-3/8" or 2-3/4" Cross Bore: 2-1/8" Edge Bore: 1" Door Thickness: 1-1/2", 1-3/4", 1-3/8", 1-5/8", 1-7/8", 2", 2-1/4", 2-1/8" Latch Faceplate: Round Corner, Square Corner Cylinder: 5 Pin Weight: 1.5 lbsAdditional Functions: 7972 (This Model) : Double Cylinder 7971: Single Cylinder About Weslock: If security, safety, and style are important to you, then Weslock is your choice for quality hardware for your home. Weslock hardware is well built, and designed to last through years of use.