There are two main types of door that your lock will be fitted to.
Upvc window lock mechanism types.
Scroll through our selection to see the wide variety of locking mechanisms available for your window.
Inline lock mechanisms have the gearboxes located in a central position under the faceplate.
What is a window locking mechanism.
The picture below shows one of many different types.
Simple to fit very easy to set up.
Saracen roller window lock gearbox for upvc windows.
We have everything from replacement window gearbox locks to upvc window locking mechanisms and more.
We are one of the uk s leading supplier of window locking mechanisms.
A composite door may have a timber core and is likely to be 44mm thick.
Dimension a backset dimension b mushroom height dimension c rail length dimension d rail width click on link below the long metal plate is the rail and the part in the centre of the window lock is the gearbox.
The best way to distinguish which door your lock is fitted on would be to open your door and lock down the edge of your door.
Dimension a backset dimension b mushroom height dimension c rail length dimension d rail width see below.
Window mechanisms for upvc windows.
A standard upvc door and a composite timber door.
The saracen roller lock mechanism is often found in older type double glazing windows with shootbolt technology the rod in this gearbox mechanism has a long thread all the way up the shaft.
The upvc window lock below shows one of many different types.
Type of front door lock back door lock sometimes internal doors a euro cylinder lock is commonly fitted to upvc composite doors and is used with multi point locking systems and are also fitted to some mortice deadlocks and sashlocks on timber or aluminium doors.
Espag type window mechanisms a very versatile replacement window lock mechanism for upvc windows where the locking system has failed.
Remember it does not really matter about the make of the window lock it is more important to get the size and type right as most makes are easily interchangeable with very little effort.
