What is the best choice for residential door locks?
Deadbolt locks provide the most security on residential doors. The term dead is used, because these locks do not contain springs. A single-cylinder deadbolt is operated with a key from the outside and with a turn button on the inside, and a double-cylinder is operated with a key on both the inside and outside. Double-cylinder deadbolts can pose a danger during an emergency if the key is missing or not readily available.
Locksets and handlesets are medium-security entrance door locks often combined with a deadbolt. They have two doorknobs that can be locked from the inside and the outside. One doorknob locks from the inside by turning or depressing a small button, while a key must unlock the outside knob. A handleset features a decorative door handle on the exterior.
For advanced home security and convenience, keyless locks can be used to replace any standard deadbolts on exterior doors. An anti-theft rolling code feature ensures the same code is never used twice, and certain models sound an alarm after the incorrect code is entered more than three consecutive times. Additionally, some systems are compatible with select garage door openers or home security systems.
ANSI Grade 1 protection:
Deadbolts: Schlage B60/B62, Kwikset 980/985
Kwikset: Amherst, Arlington, Ashfield, Avalon, Chelsea, Hawthorne, Shelburne, Sheridan
Schlage: Addison, Camelot, Century, Plymouth