Deadbolt door locks are the most secure type of key lock and are usually used on a home's exterior door. Available in single- and double-cylinder styles, deadbolts are rated according to their strength from Grade 1 to Grade 3.
The best & most secure 5 Mortice lock is a lock that is Kitemarked to British Standard BS-3621. A Kitemarked British Standard lock ensures the mortice lock has been tested against burglary techniques such as drilling.
ABUS Granit™: one of the world's most secure padlocks with a tensile resistance of over six tonnes. Granit locks have a tensile resistance of over six tonnes, making it almost impossible for attackers to release the shackle from the lock body by force.
The most secure residential deadbolt will have hardened steel bolts that can withstand thieves' attacks. These attacks could include battering rams, sledgehammers, kicks, shoulder strikes, and much more. But if these locks don't have these steel bolts, these situations would snap or bend the bolt and cause a failure.
Deadbolts are the most secure because they need to be engaged when the door is shut. They have a unique locking device built into the bolt, that can't be forced back into the door, thus preventing unwanted entry. The deadbolts sets back into the door 1 inch vs. a Spring bolt which sets back 1/2 inch.
Generally speaking, deadbolts are sturdy locks that can withstand kick in and other forced entry attempts. However, a door with a deadbolt can still be kicked down if the door itself is not solid. So, to protect your door against kick in, you want to make sure both the lock and door are of high-quality grade.
Also in the non-forced entry category, there is no doubt Schlage is better. With a better, more precise manufacturing process and 2 additional security pins than the Kwikset deadbolt, Schlage locks are significantly harder to pick, bump or compromise in non-destructive ways.
Kwikset smartkey locks are certified Grade 1 security for residential use by the Builders Hardware Manufacturers Association and are advertised by Kwikset as being invulnerable to being hacked with wires, screwdrivers, or anything else inserted in the keyway.
Unpickable Locks Do Not Exist.
I recommend as a minimum the Yale Superior cylinder, they are a good quality lock with some interesting features – They are difficult to pick, difficult to drill and very difficult for burglars to snap – combined with good quality handles and fitted correctly they are a burglars worst nightmare.
Yale euro locks help to secure a home or place of work, commonly installed on a uPVC door and operated with a key. Featuring anti-snap, anti-bump and kitemarked properties to provide added protection against cylinder attacks or accidental damage, Yale euro cylinders are insurance approved for peace of mind.
What are anti snap locks? Anti-snap locks prevent locks from snapping – making it difficult for intruders to break an entry. This type of Euro cylinder lock is the most common profile design – used predominately on UPVC doors throughout Europe, in both commercial and domestic properties.
The BHMA/ANSI has three, separate grades for deadbolts, simply labeled grades 1 through 3. Grade 1 is the highest quality, and the most dependable deadbolt you can have. Grade 3 is your average deadbolt which will provide an accepted, but minimal, level of security.
A doorstop will definitely not prevent all entries but when used properly it can withstand substantial force. In most cases, a regular doorstop won't keep intruders out but it can slow them down and when combined with other security measures it provides a real barrier and keeps the door in place.
Door strike plates reinforce the area of the door where a door latch will sit when the door is closed. They help the latch stay put, protect the door jamb from friction, and keep the door opening and closing smoothly. Door strike plates reinforce the area of the door where a door latch will sit when the door is closed.
Well, deadlocks and deadbolts are the same in that they both need a key to lock. However, while a deadlock can only be unlocked in deadlock mode with a key, deadbolts can be locked and unlocked with a key and have a metal lock that extends from the door into the wall.
Unfortunately, you can not unlock a deadbolt with a credit card. Credit cards will only work with slanted-latch-style locks. Furthermore, the slant of the latch must be facing you so that you may press it in using your card.
Kicking a door down is best employed on a door that swings away from you. Kick to the side of where the lock is mounted (near the keyhole). This is typically the weakest part of the door. Using a front kick, drive the heel of your foot into the door.
The best way to secure your front door is to use deadbolt locks, which are the strongest type of lock, short of commercial-grade locks. Extra-long screws on strike plates also provide additional security. When you have multiple locks, remember to always lock all of them, especially the deadbolts.
CR's take: The Medeco Maxum 11TR503-19 is the strongest deadbolt across all of our lock categories. It rates Excellent for drilling, withstands kick-ins very well, and is designed in a way that makes it very difficult to pick.