This keyed entry door knob offers convenient security for exterior doors, operated by a key on the outside and a turn-button knob on the inside. The satin nickel finish provides a modern aesthetic that complements a variety of home styles, and the design is suitable for both left-handed and right-handed doors. Installation is straightforward, fitting standard door preparations and common backsets found in most US homes.This door knob is designed to fit doors with a thickness of 1-3/8 inches to 1-3/4 inches and accommodates 2-3/8-inch and 2-3/4-inch backsets, ensuring compatibility with existing hardware. The robust 1/2-inch latch bolt, plated in nickel, delivers reliable performance and secure closure. Constructed for lasting durability, this entry knob is a practical solution for enhancing the security and functionality of your homes entryways.Meeting standards, this door knob is certified for residential use, providing a dependable level of security for your peace of mind. The included faceplate features a radius corner design and measures 1 inch by 2-1/4 inches. With its easy installation process and reliable performance, this keyed entry door knob is an excellent choice for homeowners seeking a blend of security, style, and convenience.