Maco Offset Window Espag Lock
Backset: 20mm & 25mm
Lengths available: GR.1, GR.2, GR.3, GR.4
Material: Mild Steel & Zinc
Offset window espag locks, used on old uPVC windows, and modern Aluminium, alu-clad and timber windows.
Maco Offset Window Espag Lock Description
The espag is the window locking mechanism, which is operated by the window handle. Offset window espag locks are commonly found on old uPVC windows. The gear box (the section the window handle connects to) is offset to one side. This was to accommodate the uPVC window profiles that were being manufactured at the time. The available space inside the profile for a window espag lock was very small. Modern uPVC window profiles are bigger and space is not an issue as it once was. Nearly all modern uPVC windows use inline window espag locks. As a result of the switch to using inline window espag locks, offset window espag locks now are a thing of the past. Many window hardware manufacturers have stopped making offset window espag locks.
These window locks can also be used to replace other brands of offset window locks.
- Avocet offset window espag
- Basta offset window espag
Note: Please check sizes carefully against the sizes you require
Maco Offset Lock Size Guide
When replacing an existing maco offset window espag lock. Check the following sizes: The length of the lock and the backset.
On the Maco offset window lock there will be a markings stamped along the faceplate of the lock. The markings are the code for the length of the lock.
We stock the four most common sizes:
- “GR.1 – 400mm – 600mm” (Length – 380mm) for sash between 400mm – 600mm – 2 rollers cams
- “GR.2 – 600mm – 800mm” (Length – 580mm) for sash between 600mm – 800mm – 2 roller cams
- “GR.3 – 800mm – 1000mm” (Length – 780mm) for sash between 800mm – 1000mm – 2 roller cams
- “GR.4 – 1000mm – 1200mm” (Length – 980mm) for sash between 1000mm – 1200mm – 3 roller cams
Next check the backset of the lock. Get a measuring tape and measure from the edge of the faceplate to the centre of the handle. There are two sizes available – 20mm & 25mm. Alternatively, you can remove the lock from the window.
If you are replacing another brand of offset window espag lock with a Maco offset lock. Measure the lenght of the sash (eg. if it measures 700mm select “GR.2 600-800”)
Measure the backset as described above. Also measure the width of the channel that the lock sits into. The width of the Maco faceplate is 16mm
Please contact us if you are unsure of the size window lock you require.
See pictures for full dimensions. See video for more information.