Nightlatch / Night Latch
Night Latches are sometimes referred to as Yale locks. Yale is just a brand, similar to the association of Hoover’s with vacuum cleaners. The technical term however is Night Latch.
They are a type of Rim Lock as they are attached to the Door Leaf itself. However, they are normally installed onto an external door given that they have a higher security rating. They come in two sizes, this being 40mm and 60mm.
Automatic Deadlocking Night Latch
Automatic Deadlocks have a Pin above or below the Latch. When the door is closed, this Pin then activates the Deadlock. This reduces the chances of the lock being opened without a key.
This type of Night Latch often has Deadlocking via Key as well.
Night Latch Security Rating (with British Standard Kite mark)
We would never recommend using just a Night Latch on its own. It is always best practice to have a Night Latch in addition to a BS (British Standard) Five Lever Dead Lock. For optimum security, we always recommend installing the Night Latch at shoulder height, and deadlock to be installed at knee height. This greatly increases the security of the door itself.
As well as placement, we always recommend buying products with the BS Kite Mark (British Standard). These have been tested rigorously and greatly reduces the chances of unwanted visitors.