A deadbolt lock is manually engaged and disengaged with a key or thumb latch. Deadbolt locks do not have knobs or handles attached and are not spring loaded. Typically, deadbolts are cylindrical and are about 2-4 inches in diameter.
There are two types of deadbolts:
a single cylinder deadbolt has a key hole on one side of the door and a thumb latch on the other.
A double cylinder deadbolt has key holes on both sides.
These locks provide more security than spring loaded locks like door knobs or door handles. Some of these locks connect to keypads, mobile systems, or Wi-Fi. Deadbolts are also versatile because they can be installed on both residential and commercial doors.
Common trusted deadbolt brands are Kwikset, Schlage, Medeco, and
Mul-T-Lock, to name a few.
Should I replace my deadbolts or have them rekeyed?
If you lost your keys and are worried about someone gaining access to your property, you just need to rekey your locks. The process of rekeying a lock includes removing the interior cylinder of the lock (the area surrounding the keyhole) and installing a new cylinder that comes with keys. 2 cylinders must be replaced when rekeying a double deadbolt lock because there are 2 key holes.
Replacing the cylinder/ rekeying your lock means that you get a completely new set of keys. Consequently, the old keys will no longer work on the lock. If you have damaged your deadbolts or you want to update the design, you should replace the lock completely.