This keyed entry door knob provides security and convenience for exterior doors, ideal for front or back entrances. Designed for both left and right-handed doors, it features a classic antique brass finish that complements a variety of home styles. The knob operates with a turn-button mechanism on one side and accepts a key on the other, offering controlaccess.This door knob is compatible with standard door preparations, fitting 1-3/8-inch and 1-3/4-inch thick doors with a 2-1/8-inch diameter cross bore and a 1-1/16-inch diameter edge bore. It accommodates the two most common backsets used in the U.S., 2-3/4-inch and 2-3/8-inch, simplifying installation. Enhanced with anti-bump pins, this knob provides an extra layer of protection against forced entry.Certified to standards, this entry knob is suitable for residential security needs. It utilizes a KW1 keyway with a KA3 keying system, providing three keyed-alike locks per cut case for added convenience. The durable construction and quality finish ensure long-lasting performance and a refined aesthetic for your homes entryways.