Dexter Single Cyl. Deadbolt Polished Brass is a reliable exterior deadbolt designed for easy installation and compatibility with all standard door preparations. This durable lock features a lifetime mechanical warranty and a 5-year finish warranty, ensuring long-lasting performance and appearance. The deadbolt can be locked or ed from the outside using a key and from the inside with a turn unit, ing convenient and secure access. It can also be rekeyed to match existing locks or other Dexter locks you may have. I for residential single and multi-family doors, this deadbolt meets ANSI Grade 3 standards and is U.L. listed. It comes with a 5-pin C keyway and two keys, fitting doors with thicknesses from 1-3/8" to 1-3/4" and accommodating both 2-3/8" and 2-3/4" backsets for universal compatibility. Model Number: