What is a door night latch?
A night latch (or night-latch or nightlatch) is lock that is fitted on the surface of a door, it is operated from the exterior side of the door by a key and from the interior (i.e. “secure”) side of the door by a knob. Historically, such locks were intended for use at night-time, hence the…
A night latch (or night-latch or nightlatch) is lock that is fitted on the surface of a door, it is operated from the exterior side of the door by a key and from the interior (i.e. “secure”) side of the door by a knob. Historically, such locks were intended for use at night-time, hence the name.Click to see full answer. Also know, what is night latch function?The quick and easy definition of the term night latch function is a spring lock that can be opened from the inside by engaging the lever set or knob from the inside or from the outside by key.Also, how does a latch lock work? Once the bolt passes a certain point, it will fully extend and quickly lock into the strike plate due to the pressure being released from the spring, securing the door and holding it closed. Latches are designed to retract and disengage when someone turns the door handle to open the door. Also asked, how do you measure night latch? Before making a purchase, consider the size of the backset — the distance from the centre of the keyhole to the edge of the door. A standard night latch has a 60mm backset. However, narrower – typically 40mm – backsets are available.What is a 60mm Nightlatch?A nightlatch is fitted on the internal side of a door and will help give the door more sturdiness when in a locked position. 60mm is commonly used for conventional doors, whereas those using glass panel doors will often choose a 40mm back set.
