This type of window lock replaces old style window locks and new style window locks.

Replaces old Newman Tonks and Basta window locks.

13mm and 16mm rail width
Single track
Supplied in a 1000mm length that can be cut down to 800, 600 and 400mm sizes
Backset sizes available 21mm (this will replace 20mm and 22mm backset locks) and 25mm : See images on how to measure backset.
Offset gearbox and Inline gearbox (remove the packer on the gearbox to make the lock offset) *Amazing we know* 

With packer fitted to make the window lock espag inline.

Without packer fitted to make the window lock espag offset.

Side view.

Top view.

Easily cut down from 1000mm to 400mm, cut where the lines are shown.

13mm rail 16mm rail

Gearbox sizes

NOTE: If required there is 3-4mm available to trim of the back end of the gearbox.