But why is it called a "deadbolt"? According to the Oxford English Dictionary, deadbolt first appeared in print in 1808. It's ...

We've tested and reviewed products since 1936. Read CR's review of the Tru-Guard Single-Cylinder Deadbolt DL71 KA3 door lock to find out if it's worth it.

We've tested and reviewed products since 1936. Read CR's review of the Schlage Single Cylinder Deadbolt B60N 505 605 door lock to find out if it's worth it.

The new Lockly Duo is a two-in-one latch and deadbolt smart lock that combines both security features into a single, compact device. The Dual-Locking Technology, which is still pending, secures ...

The Yale Approach Lock with Wi-Fi + Keypad is our pick for deadbolt adapter locks. It should work with most any single-cylinder deadbolt, is easy to install, and works quickly and reliably.

This smart lock from Schlage gets a Grade 1 mechanical quality rating from the American National Standards Institute (ANSI), which is the best rating available and means the deadbolt can withstand ...

Take the Wyze Lock Bolt. It's a $70 smart lock that offers a nice-looking and nice-feeling keypad and deadbolt thumb-turn, and includes a fingerprint scanner.

Smart home accessory maker Wyze has debuted a smart lock, which works with customers’ existing cylinder deadbolts. The Wyze Lock will cost $89, and it will be available for general sale in February.

The Defiant Smart Wi-Fi Deadbolt Features Clean Look, Good For Most Doors The Defiant Smart Wi-Fi Deadbolt is a simple smart lock that does most of the things you’ll need but without fancy ...