Unlocking Plastic Locks: Easy Tricks To Try

how to open a plastic lock

Locking yourself out is frustrating and panic-inducing, whether it's your home, car, or a room inside your house. There are several ways to open a lock without a key, but they vary in difficulty and potential damage to the lock or door. The most popular and well-known method is lock-picking, which typically requires a set of lock picks but can be done with a couple of paper clips or a bobby pin. Drilling a lock is a last resort that will destroy the internal components of the lock and render it unusable, but it may be necessary if someone is in danger and immediate access is required. Locksmiths can also use a plastic shim or a thicker version of the old credit card trick to slip the latch and open a lock.

Characteristics Values
Plastic shim A thin, durable and flexible piece of plastic, such as a rounded-corner plastic card
Deadlatch button Improperly configured deadlatch buttons can be exploited to slip the latch
Other tools Butter knife, lock-picking set, paper clips, screwdriver, shoelace

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Using a plastic shim

To create a plastic shim, you can use everyday materials such as a plastic bottle or a plastic item from your trash. Cut a piece of plastic that is thin enough to fit between the shackle and the locking mechanism without tearing. It should be durable and flexible. Rounding the corners of the shim can help prevent it from getting snagged.

Once you have your shim, insert it into the space between the padlock body and the shackle. You may need to try different sides of the lock or use multiple shims if the first attempt is unsuccessful. Gently work the shackle up and down while turning the shim. This will help guide the shim into the locking mechanism. Be careful not to use too much force, as it could bend or tear the shim.

As you turn the shim, you should feel resistance from the locking mechanism. Continue turning until you hear a click, indicating that the locking mechanism has been disengaged. At this point, you can pull on the shackle to open the lock.

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Credit cards to push the latch

Credit cards are a familiar tool that can be used to open certain locks. The process is simple: slide the card into the gap between the door frame and the locking mechanism, then bend the card towards the doorknob. Next, bend the end of the card back towards the frame, which will cause the card to slip under the latch and unlock the door. It is important to note that this method only works on spring-loaded latch locks and does not affect deadbolts.

When using a credit card to open a lock, it is essential to be patient and not rush the process. It may take a few tries and some wiggling and bending of the card to get the door to open. Additionally, the type of card used is important. Credit cards tend to be thick and stiff, which can make them difficult to manipulate and more likely to break. Therefore, it is recommended to use a lightweight, flexible card or a piece of sturdy yet flexible plastic cut from a soda bottle.

To increase the chances of success when using a credit card to open a lock, there are a few things to keep in mind. First, examine the door lock to confirm if it has a spring-loaded latch. Understand the type of lock and the door-opening direction, as this will determine the technique used. If the door opens outward, cut a small notch in the card to fit into the gap and contact the latch. If the door opens inward, simply insert the card directly into the gap.

When inserting the card into the gap, it should be placed at a 90-degree angle to the door. Lean on the door and use your body weight to create pressure and help the card slide further into the gap. This method is most effective when the lock is slanted towards you and more difficult if the lock faces away from you. It is also important to ensure that there are no obstructions, such as metal plates or excessive moulding, that could hinder the card from reaching the strike plate.

Overall, using a credit card to open a plastic lock is a viable option in certain situations. It is important to understand the type of lock and door setup and to be patient during the process. With the right technique and a bit of practice, you can successfully open a spring-loaded latch lock using a credit card or a similar piece of plastic.

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Lockpicking with paper clips

To pick a lock using a paper clip, you will need two sturdy metal paper clips and a pair of pliers. Using the pliers, unfold one paper clip so it is straight with a hook at the end, and bend the other paper clip at a 90-degree angle to form an "L" shape. The straightened paper clip will act as a tension wrench, while the bent paper clip will be your lock pick.

Insert the bent end of the "L"-shaped paper clip into the bottom of the lock and turn it in the same direction that the lock turns. Then, insert the straight paper clip into the upper part of the lock, above the rake, and apply pressure to depress the lock's pins. Jiggle the straight paper clip up and down while continuing to apply rotational pressure to the bent paper clip until the lock opens.

It is important to note that paper clips are not very sturdy and may break inside the lock. This can be frustrating and may require you to replace the lock. Therefore, using a real lock pick set is a better option if available.

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Drilling the lock

Drilling a lock is a straightforward but destructive method of opening a plastic lock. It is a good idea to find out how much it will cost to replace the lock before starting. This method will destroy the internal components of the lock, rendering it unusable. You will need a drill and a set of drill bits of varying sizes, with at least one bit roughly as big as the widest part of the keyhole. You will also need a flat-headed screwdriver.

First, confirm that the lock can be drilled out. Only doorknob locks and deadbolts with traditional tumblers can be drilled out at home. For other lock types, you will need to call a locksmith. Position the punch near the top of the lock, just above the keyhole's shear line, and hammer it two or three times to create a guide point. Then, attach a 3mm drill bit to your drill and drill a hole through the lock cylinder on the guidance point. Your objective is to destroy the pins inside the lock to open it. Go slowly and stop once your drill bit starts spinning. You will feel more resistance as the drill bit encounters each pin. Don't try to drill through the entire lock all at once, as you will break the drill bit.

Once you have drilled through the pins, switch to a larger drill bit, such as a 6mm or 1/4-inch (6.5mm) bit, and drill the lock again to further break up the pins. After drilling with the larger bit, insert a flat-headed screwdriver into the keyhole and twist it to unlock the door. If the door won't open, continue drilling and testing the screwdriver. You may need to switch to an even larger drill bit, such as a 3/4-inch (19mm) bit, and drill through the entire locking mechanism.

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Removing the doorknob

Step 1: Check for Exposed Mounting Screws

Start by inspecting the doorknob for any exposed mounting screws. These screws hold the doorknob in place. If they are visible, you're in luck, as this will make the process much simpler.

Step 2: Remove the Mounting Screws

If the mounting screws are exposed, simply use a screwdriver to back them out. Turn the screws in the counterclockwise direction until they come out completely. With the screws removed, you can now easily dismantle the doorknob and gain access to the lock.

Step 3: Dismantle the Doorknob

Once the screws are out, carefully dismantle the doorknob. This may involve separating the different components of the knob, such as the rose (the decorative plate), the knob itself, and the shank. Be gentle during this process to avoid damaging any parts.

Step 4: Expose the Locking Mechanism

With the doorknob removed, you will now have access to the locking mechanism. This is where you can manipulate the lock to open the door. The specific steps may vary depending on the type of lock, but the general idea is to disengage any latches or bolts that are securing the door shut.

Step 5: Unlock the Door

If the lock has a latch, simply slide it back away from the doorjamb to unlock the door. For more complex locks, you may need to use a tool, such as a small screwdriver or a thin piece of plastic, to manipulate the internal mechanisms and unlock the door. Be cautious and gentle during this step to avoid causing any damage.

Remember, this method is most effective for interior doors with low-level-security doorknobs. If you're dealing with a high-security lock or your DIY attempts fail, it's best to call a professional locksmith to ensure the job is done quickly and without damaging your door or lock.

Frequently asked questions

You can use a plastic shim, a thin piece of plastic that is durable and flexible. This is an upgraded version of the old "credit card" trick.

You can make a shim from a piece of plastic trash. Round the corners of the shim to prevent it from getting snagged.

Insert the shim between the door and the strike plate (the part mounted to the door frame with a hole for the latch). Push the latch out. You may need to try multiple times, changing the angle and direction of the shim.

You can use a butter knife, paper clips, a screwdriver, a shoelace, or a lock-picking set.

Wedge a screwdriver into the crease between the door and the "B" pillar (the part of the frame separating the front and back seats). Slip a long, skinny rod through the crease and press the unlock button on the door panel.

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