Door locks are a critical part of a home and building. They act as a barrier to provide extra safety to the space and the things we want to keep safely and privately. Different types of locks offer different levels of security and durability. Some are more suitable to be installed on the outer door as they can keep intruders from entering your home. A simple guide here to let you understand the differences between types of locks so that you can find the right door lock for your external or internal doors.
First of all, we need to know the parts of the door locks, including their name, functionality, and how they work together to make the mechanism workable.
- Cylinder: The cylinder is the part of the lock where the key inserts. The key must fit correctly to the cylinder in order to turn the lock. A slight difference in the key will not unlock the lock. The cylinder contains several spring-loaded pins that are constituted by Spring, Driver Pin, and a Key Pin. Each pin has a different level. When the key is not inserted, the spring keeps all the pins down, so they can rest on the ledge. To turn the key, all the pins will move and must line up with the shear line when the key is inserted. When you insert a wrong key, the pins are not lined up and you will not be able to rotate the lock. There are two types of cylinders which are single cylinder and double cylinder. Single cylinder only has space for key on one side that is located on the external part of the door. The other side (the internal part of the door) normally has a twist knob that can lock the door from inside without the key. A double cylinder requires a key on either side. It is common to be used in public restrooms where you don’t want anyone to be able to lock the door from inside without the key.
- Bolt/Latch: When the key fits into the cylinder, the pins move and will trigger the bolt to move in or out. When the door is locked, the bolt will rest inside the carved-out part of the door frame and keep the door closed with the frame. They are two main types of bolts: Deadbolt and Sprint bolt. Spring bolt has a clip inside that holds them in place. The clip will compress when the key moves the pins and move the bolt inside the lock to open the door. A deadbolt requires the correct key to turn it.
- Strike Plate: It is a piece of a simple metal part that attaches a lock mechanism to the door frame. It can be easily replaced when damaged.
- Box: The box is a squarish hole that is created on the door frame to fit the bolt when it is locked. Most of the boxes are in similar size in order to fit most of the bolts
1. Knob Lock
Knob locks are the most common type of door lock that is widely used on inner doors such as bedroom and bathroom doors. The lock cylinder is situated in the doorknob but not the door. This type of lock has knob locks that are not suitable to be installed on external doors as they can easily be broken with the use of basic tools such as a hammer or wrench.
2. Cam Locks
Cam locks belong to the type of fastener that is commonly used as the locks of cabinets and furniture. This type of lock is usually cylindrical and most of its parts are fully constructed in the cabinet that is invisible from the outside. Cam locks can help us to secure the cabinet doors completely which allows us to keep sensitive materials or documents inside.
Padlocks are unlike other types of lock, they are portable and not permanently installed on a door. They come in a wide variety of models which can be categorized into two main groups: keyed and combination. Keyed padlocks require a key to insert in the keyhole to release the lock, they have different variants such as keyed alike, keyable, and keyed different. In contrast, a combination padlock does not require a key to open the lock, it has several rotating discs that trigger the locking mechanism and it is unlocked with a sequence of numbers or alphabets.
Deadbolts are one of the most popular types of door locks for exterior doors in residential and commercial buildings. They provide additional security to your entry doors as they are a separate mechanism from the doorknob. It is suggested to install both doorknob lock and deadbolt on the entry doors for your house and office. Deadbolts have a secure lock system that prevents the risk of intruders as it is nearly impossible for a burglar to break in the door. It is available in both double or single-cylinder designs depending on your requirements. A double cylinder can offer more protection from unauthorized access to the home.
5. Lever Handle Locks
Cylindrical lever locks are also widely used in both residential and commercial buildings. They are similar to the regular lever door handles but with an additional keyhole that can be locked for extra security. It is easier to grasp than doorknobs and requires a gentle push down to move the handle.
6. Mortise Locks
Mortise locks are installed within the door but not mounted on the surface of the door. They have an internal lockset system and are available in many types such as 5 lever mortise locks and 3 lever mortise locks. The number of levers in the mortise lock indicates its level of security. The 3 lever locks have fewer levers and therefore much easier for key duplication. The 5 lever locks are mostly used for external doors as they have more levers and offer higher security. These locksets are normally designed to work with a pair of either levers or knobs.
7. Electronic Locks & Smart Locks
Electronic locks and smart locks are most often used in residential properties such as condos and apartments. Smart locks allow you to have more control over the security of your house and business. The locks require an authorized device likes your fingerprint or smartphone to lock and unlock it. Whereas, the electronic locks are unlocked by punching the keypad with a series of codes or by using a keycard.
Different types of locks offer different levels of security. We should choose the right types of locks based on our application. MecHero hardware stores supply a wide range of locks that meet your requirement. You can always contact us at +6011-7000 7687 or email us at firstname.lastname@example.org for an inquiry about gardening tools in Malaysia. As a steel and online hardware store in Malaysia, we also supply a wide range of steel materials, general hardware, or mechanical components. Tell us your requirements now and we can advise you accordingly.
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