Contemporary Style Double Cylinder Deadbolt Double Cylinder: A double cylinder lock is keyed on both sides of the door and is 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 thumbturn on a standard single cylinder lock would be accessible. Note: Some images of this product may be of single cylinder version of the lock with a thumbturn on the interior rather than a keyed cylinder. 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. Keep your home safe with this stylish double cylinder deadbolt. Its unique design is the perfect finishing touch to any door. The double cylinder design can only be locked and unlocked by key on both sides. Deadbolt case is formed with heavy gauge steel Grade 1 ANSI Rating Specially-designed reinforcing strike constructed of high grade steel for ultimate strength and durability The cylinder housing is protected with a free-turning exterior cylinder guard fabricated from solid brass to resist gripping or twisting Two keys will be per lock. Three or more items keyed alike will ship a total of 6 keys
