Mila Window Espag Lock – Inline – 20mm / 22mm Backset

Home/Window Parts/Window Locks/Mila Window Espag Lock – Inline – 20mm / 22mm Backset

Mila Window Espag Lock – Inline – 20mm / 22mm Backset

Out of stock

13.0018.00 inc. VAT

Manufactuer:  Mila
Lengths Available:  110mm, 250mm, 400mm, 600mm, 800mm, 1000mm
Width of Faceplate: 16mm
Roller Cam Height: 8mm
Screw Centres: 43mm

New upgraded Mila espag window lock – Inline – 20mm or 22mm back set

*IMPORTANT* This is the new upgraded Mila window espag lock and is slightly different than the old Mila window espag lock. Please read description below and check sizes on the picture

See pictures for full dimensions. See video and details below for more information.

No screws come supplied with this product. Click here to see our selection of screws

Click here to watch our video on how correctly measure a window espag lock


Mila Window Espag Lock Inline

Backset: 20mm & 22mm
Lengths available: 250mm, 400mm, 600mm, 800mm, 1000mm
Material: Mild Steel & Zinc
Window espag locks used on uPVC windows, and modern Aluminium, alu-clad and timber windows. The espag is the window locking mechanism, which is operated by the window handle/

Mila Espag Lock Description

Window espag locks are often called uPVC window locks or window locking mechanisms.
These window locks are made by Mila, and are the new design lock for the old discontinued Mila window lock. They are a stronger and more robust design than the old lock.

The old Mila window locks were used by several window manufacturers over the years including Munster Joinery and Senator Windows. The old version of the mila window lock is now obsolete. The position of the roller locks and screw holes on the new Mila window locks are slightly different than to the old mila window locks. You will just have to reposition the keeps on the frame to suit the new position of the roller locks.


Mila Lock Size Guide

On the old Mila window lock there will be a code stamped along the faceplate of the lock. The code will be GR and a number (eg. GR100). This is the code for the length of the lock.

We stock the following sizes:


  • 110mm –  for a sash between (140mm – 280mm) – 1 roller cams
  • 250mm – (equivalent to GR28) – for a sash between (300mm – 450mm) – 2 rollers cams
  • 400mm  – (equivalent to GR40)  – for a sash between (450mm – 600mm) – 2 rollers cams
  • 600mm – (equivalent to GR60) – for a sash between (650mm – 800mm) – 2 roller cams
  • 800mm – (equivalent to GR80) – for a sash between (850mm – 1000mm) – 2 roller cams
  • 1000mm – (equivalent to GR100) – for a sash between (1050mm – 1200mm) – 3 roller cams


Old Mila Lock Comparison

Old GR28 measured 280mm long
Old GR40 measured 350mm long
Old GR60 measured 550mm long
Old GR80 measured 750mm long
Old GR100 measured 950mm long

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. The most common sizes will be 20mm or 22mm. Alternatively, you can remove the lock from the window. On the lockcase of the lock the size will usually be stamped. Eg. 22. Note: If your backset measures 19mm, please choose 20mm.

Roller Shape: Mushroom
Height Of Roller: 8mm
Outside Diameter Of Roller: 9mm
Inside Diameter Of Roller: 6mm

Please contact us if you are unsure of the size window lock you require.

See pictures for full dimensions. See video for more information.

Additional information

Weight 1 kg
Espag Length

110mm, 1000mm, 1200mm, 250mm, 400mm, 600mm, 800mm


20mm, 22mm

Instructional Video

Find out how to replace a Mila window espag lock in a uPVC window.

Fitting Instructions

1. Use the sizing guide above to choose the correct size window lock
2. Remove the two fixing screws holding the handle, and remove the handle
3. Remove the fixing screws on the faceplate of the lock
4. Fit the new lock into place
5. Fit the window handle back through the new lock, making sure it is closing in the same direction as before; and it is in the correct position in relation to the lock position
6. Re-fit the handle fixing screws
7. Re-fit the fixing screw to the faceplate of the lock.
8. Remove the screw/screws from the frame keeps. Move the keeps to suit the position of the roller locks. Refit the screw/screws into the frame keeps.
9. Test the operation of the lock


There are no reviews yet.

Be the first to review “Mila Window Espag Lock – Inline – 20mm / 22mm Backset”

Your email address will not be published. Required fields are marked *


I agree

You may also like…