Locking & protection
Key-operated lock, slide bolt or hook?
These three fittings maintain a closed position, but they serve different purposes. A lock can provide a keyed closure; a simple catch or hook is mainly for holding or privacy.

THE KEY POINT TO REMEMBER
Holding a door closed does not necessarily provide protection against a break-in.
The key-operated lock: an additional security measure
The lock consists of a housing and a bolt that engages in a strike plate. It is operated by key, push button, or manually, depending on the model. On an entrance door, a security lock can complement the existing lock.
Resistance depends on the mechanism, fixings, strike and mounting surface. A stronger lock alone cannot compensate for a weakened frame.
The slide bolt: simple and accessible
The latch is a small sliding bolt, typically operated directly by hand. It is particularly suitable for an interior door, a cabinet, or certain shutters.
It allows retaining an opening or achieving privacy. On an exposed exterior door, it does not replace a security lock. For a room where someone can lock themselves in, also consider the possibility of a backup release mechanism.
The hook and the latch
A simple hook engages with an eye or keeper to hold a shutter, gate or small door. A latch uses a moving part to hold the opening section closed; designs and controls vary.
There are also bolt-and-hook locks, particularly for sliding doors. This integrated mechanism in a lock is different from a small retaining hook; they should not be compared as equivalent accessories.
Which option suits your opening?
Start with usage: hold a shutter, close a piece of furniture, preserve privacy or enhance access. Then examine the material of the support, exposure to moisture, and fixation options.
Price alone does not allow for solution comparison. The quality of installation, command accessibility, and appropriate maintenance remain decisive. If the goal is to secure an entrance, the entire closure system should be assessed.
IN IMAGES

MULTISECU ADVICE
Uncertain about your lock?
A photo of the mechanism, along with some details about your door: we help you identify the right solution.