Locksmith NK

Types of locks: Which ones are there?


Table of contents

The most common types of locks:

When you need a new lock, you are in the right place at Locksmith NK. We have the most advanced types of locks in every shape and size: for your doors, windows, sanitary rooms, safes and/or cars, among others.
See our information on each type of lock and which lock we recommend if you want to change your lock, for example.

Mortise lock with latch and dead bolt

Quarter turn with day and dead bolt

Mortice locks are the most common locks, especially in internal doors. A lock of this type can hardly be seen when the door is closed, as it is integrated into the door itself. You can use the door handle and/or the key to operate it.
It consists of two parts: the latch and the dead bolt. Do you close the door? Then the latch bolt falls into the striker plate. If you turn the doorknob or turn the key a quarter turn, the door still opens easily.
When you turn the key twice, the solid deadbolt falls into the striker. If you want to install a mortise lock or replace it, we can of course help or advise you on how.

Multipoint locking system

Multipoint locking system

In more and more newly built houses we see the multi-point lock. This lock is also fixed in the door and frame; when you turn the key, the door closes in several places at the same time.
The multi-point lock is very safe, so that the installation of additional locks is not necessary. SKG*** approval is a matter of course with this type of lock as it has a lock at several points so that the door is secured at more than one place.
It is a very secure lock that we often recommend to install, especially in neighbourhoods that are known to be or have been burgled.

Padlock with latch and dead bolt

Padlock with day-and-night latch

Padlocks are a bit older than mortise locks and we often see them in older houses. Padlocks are placed on the inside of doors and frames and have a dead bolt and a catch just like mortise locks.
You can open this lock with the sliding handle or knob that is present on this type of lock. Padlocks do not have the SKG** quality mark, which makes them less suitable for front doors than newer locks (from the 90s), with the exception of the newer models of Lips with so-called security slingers. Therefore, we always recommend to choose a lock with the SKG** or SKG***-label and we have these in stock and can install them when you remove the overlay lock in your house.

Pin lock

Pin lock

This lock has 2 extra strong metal pins. These metal pins offer solid security and can hardly be opened (even with extra force).
This lock can be operated with a so-called cross key and is usually delivered in pairs of 2. Padlocks fall into the category of add-on locks used to additionally secure doors and windows against theft.
Stem locks are also known as "star locks". They are locks that are mounted above or below the main lock. The pin lock consists of a built-in lock and a keyhole cover. Pin locks are mortise locks and are therefore installed in doors.

Window lever side lock

Window lever-operated lock

A window lever is an additional lock that can be used to secure windows or doors, it is a common problem with all types of locks that it often breaks. The lock is attached to the inside of a window or door and can only be operated from the inside. Especially windows with wooden frames are usually equipped with such locks. Back doors and balcony doors made of wood are often equipped with this type of additional lock. There are several variants of the window lever. There is a window lever that can only be operated by hand, but there are also window levers on the market that can also be keyed for extra security. A locksmith from Slotenmaker NK can place the window lever for you, but you can also install it yourself.

Chock holder or chain


Kierhouders are also called door chains. It is the chain that connects the door and the frame. In some countries, such as the United States, almost every door has a door chain.
Once the door has been opened, it cannot be opened for several centimetres. On the front door, we recommend the use of play bars and on the windows we recommend the use of play bars.
This guarantees a little extra security when opening doors or windows. Doors or windows cannot be opened completely. You can safely open doors and windows for fresh air.


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