uPVC Window Lock Inline Espag Window Lock - 800mm - 20mm Backset

• This is the mechanism inside the window frame that is operated by the handle
• Gearbox is positioned centrally on the rail (inline)

What to look for and measure 1 = Rail length = this is the total length of the rod from end to end. 2 = The backset = this is the horizontal distance from the face of the lock to the centre line of the handle screw fixing holes. If your window lock mechanism does not look like the image, this will still be suitable. There are several designs to this lock but the important part is the measurement of the length and the back set of the lock.