The locks on our list range from standard deadbolts to the most advanced smart locks. ... BEST DEADBOLT: Schlage B-60 Single-Cylinder Deadbolt BEST HIGH-SECURITY: Kwikset Halifax Deadbolt Security Set ...

Since it's a retrofit lock, the Wyze Lock fits on virtually any single-cylinder deadbolts (ones that only have a keyhole on one side). It installs on the inside of your door, essentially over the ...

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.

Available with single cylinder and thumbturn, or alternatively with double ... Specification Hardened steel deadbolt thrown 21mm by 90° turn of key or thumbturn. Latchbolt reversible without opening ...