There is one important thing you need to know if you are replacing an existing Night Latch, this is what is called the Back Set Measurement, the two most common sizes are 40mm and 60mm, there are however a few older traditional types that are different to this, I have come across 50mm and 55mm on the odd occasion but they are the exception to the rule.
The reason this is so important is because they are not interchangeable, if you have a 40mm Back Set you cannot remove that and fit a 60mm version, this is due to the hole that is drilled through the door being in the wrong place, the Back Set relates to the measurement from the edge of the door to the point where you drill a 32mm hole through the door to accept the Rim Cylinder.
So if you are replacing an existing Night Latch please make sure you have checked this prior to ordering, if you have any questions relating to this please don’t hesitate to contact us on 0800 0612 688.
Door closes and can be opened with the key from the outside. These standard night latches are usually used in conjunction with a mortice lock to make them insurance approved.
Door closes but the latch can be locked in the closed position by turning the key 1 full turn from the outside and removing the key, this also locks the handle on the inside of the door.
Door closes and automatically locks the latch in the closed position, also the handle can be locked with 1 turn of the key from the inside prior to leaving, preventing people from exiting via the front door following a break in at the rear of the property. This doesn't affect entry from outside with the key.
Door closes and automatically locks the latch/deadlock in the closed position, also the handle can be locked with 1 turn of the key from the inside prior to leaving, preventing people from exiting via the front door following a break in at the rear of the property. This doesn't affect entry from outside with the key. These locks however meet British Standards for insurance purposes, all properties should have a British Standard lock fitted on the main exit doors, most insurance companies will insist on this.
Door closes and can be opened with the key from the outside. The products have an extended length operating lever and chunky sliding snib for easier location and operation. Contact points feature red tactile rubber surfaces, which provide a comfortable, non-slip grip, whilst the contrasting colour assists the visually impaired
