This mechanism has been discontinued by the manufacturer so some sizes are now unavailable.
However, alternatives are available - please contact us for details.
Available with 19mm or 22mm backset
Not sure what window lock you need?
Call us on 01204 652211 for free advice
Information from the manufacturer
The 3 Series espag Locking mechanism is designed to fit standard and reduced depth eurogrooves. It provides smooth operation and effective sealing for all types of casement windows.
To Measure the backset on your window lock you need to measure from the middle of the spindle hole to the front of the face plate. Take a look at the picture below and the red arrows show you where to measure.
The holes that the Bolts go through are a set distance and are the same on ALL window locks (43mm).
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All prices are in GBP.