What is the difference between single cylinder & double cylinder?
Single Cylinder – The most popular configuration for deadbolt locks, a keyed cylinder is provided for the outside and a turn-piece is located on the inside. The lock may be locked or unlocked with a key from the outside. The turn-piece allows locking or unlocking without a key from the inside. Double Cylinder – Used in situations where free egress from the inside is not needed or desired. Keyed cylinders are provided for both outside and inside. Locking and unlocking can be accomplished only with a key. What is an ANSI (American National Standards Institute) Grade 1 rating on a deadbolt? The American National Standards Institute sets three levels of security for deadbolts, Grades 1, 2, and 3. Grade 1 standards are the highest possible resistance to several types of forced-entry tests, including prying and kicking. An ANSI Grade 1 rating ensures that you have purchased the highest-rated security deadbolt available. Can a Baldwin deadbolt be installed on a 1-3/8″ thick door? Yes. If the
