One of the best-known ways to unlock a deadbolt without a key is by using two bobby pins. Start by inserting the closed "looped" side of one bobby pin into the bottom portion of the lock. Use the second bobby pin, broken in half, toward the top of the lock and move it back and forth.
To unlock a privacy lock you'll need a flathead screwdriver that is small enough to fit into the hole on the doorknob. Insert your screwdriver into the hole and push forward. If your doorknob is using a push-button type privacy lock, then you should hear a loud click and the door will open.
As the drill bit penetrates the key hole, apply lubricant to keep the friction from braking the drill bit. Do this until the drill bit breaks through the rear of the lock and all of the tumbler pins are ground down. Once the deadbolt has been drilled, stick a screwdriver into the hole and turn the lock to unlock it.
It's quite easy to pick a deadbolt lock. In fact, you would want to replace all your key locks with electronic ones when you discover how simple it is. This doesn't mean that picking a deadbolt lock does not require skills or practice – it still does – but the technique is so easy that anybody can learn it.
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.
Start by pulling the bobby pin apart and roughly straightening it as such. Next, stick the straight end of the hairpin about one centimeter, or about 1/3 of an inch, into the keyhole of your lock and apply enough pressure to bend the end of the pin into a hook. The result should look something similar to this.
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.
Picking a lock with paper clips works pretty much the same way as picking a lock with a traditional tension wrench and rake. You just need to turn two paper clips into those two very same tools, and then pick the lock with them like you'd normally do.
A magnet cannot entirely unlock a deadbolt.
Ideal choices include a small screwdriver or hex wrench, a hair pin, or a heavy-duty paperclip. You can even use a bamboo skewer from the kitchen, or a cotton swab with the fluff removed from one end. If using a hair pin or paper clip, first bend it open so you have a long, straight bit of metal.
To do this, unfold the large edge of your paperclip twice until a straight portion juts out. You will be inserting the straight part into the lock to use as a pick. Some locksmiths also put a tiny upward bend into the tip of the pick. This is to depress the pins inside the lock but is not strictly necessary.
A minimum of 10, 75-pound strikes are reported to be the equivalent of over 100 foot pounds, which is why the Grade 1 deadbolt locks have been tested. A really strong criminal would have to kick your door over 100 times in order for it to begin to degrade or show signs of weakness.
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.
To strengthen the strike plate on the lock, replace the existing screws with 3” long screws to attach into the wall stud. To reinforce the door frame even more, remove the door facing and attach a steel building plate to the door casing and wall stud.
In the U.S., there is no single comprehensive law against dual-cylinder deadbolts. Individual cities and states have local property and fire codes that may prohibit the use of dual-cylinder deadbolts. The code may prohibit the use of dual-cylinder deadbolts in some buildings and allow them in others.
Mortice Deadlocks
A mortice deadlock is designed to be fitted into the timber edge of a door and allows the door to be manually locked from both sides with a key. A deadlock is a lock bolt only and does not have a latch/catch section for the operation of a door knob/handle.
Deadbolts are thicker and heavier than spring latches, and they are not rounded or angled at the end. They are normally comprised of steel, bronze or brass, and they extend deeper into the door frame–typically about one inch–than spring latches.