- ENHANCED HOME SECURITY: The U 10827 satin nickel finish door reinforcement lock is engineered to withstand up to 800 lbs. of force, effectively preventing forced entry and ensuring the safety of your home and loved ones. - SIMPLE INSTALLATION: With the included 3-inch hardened screws, installation is straightforward and can be completed in minutes. For added convenience, video instructions are available to guide you through the process. - VERSATILE APPLICATION: This high-security lock is compatible with any swing-in door, regardless of thickness. It provides an extra layer of security, ensuring that doors remain securely closed against unauthorized access. - CHILD-SAFE DESIGN: The spring-loaded mechanism can be installed at a higher position, making it inaccessible to children. Additionally, the tamper-resistant features safeguard against kick-ins, lock picking, and bumping. - PRE-DRILLING REQUIRED: Installation requires pre-drilling holes with a 1/8 inch drill bit for the security screws. Avoid using a drill driver at max torque to prevent stripping or breaking the screw heads. Note that some doors may need mortising to accommodate the lock. Use Cases: 1. Ideal for securing back doors or entryways in residential homes, providing peace of mind against break-ins. 2. Perfect for families with young children, ensuring locks are out of reach while enhancing door security. 3. Suitable for rental properties or apartments, adding an additional layer of protection without extensive modifications.