The Yale BS2 High Security BS3621 Nightlatch Lock in Brasslux 40mm Backset is a modern, stylish door lock suitable for interior and exterior doors. Made from brass with a polished gold finish, this ANSI Grade 1 rated lock offers the best security for your home. It comes with hardware and a key included, making it easy to install and providing peace of mind for your front entrance. With universal mounting and easy-to-install features, this Yale lock is a reliable choice for your security needs.