This well made replacement centre lockcase fits Asgard 35mm or 45mm backset, it is used in composite and uPVC multipoint locks to replace an old or broken gearbox, also used in the 'Yale Fix' range commonly used by Anglian windows among others, it is simple to install or use as a replacement for a damaged lockcase. This allows you to get your door lock back in working order without having to pay for the full mechanism. Fits Yale Asgard/Fix multipoint locks v7025, v7026 & v7035. Commonly used in a single spindle configuration. 70/92mm PZ Centre. Available with 35mm (115612) or 45mm (115611) backset. T/S: Twin Spindle. To Lock - Lift handle up to engage locking points. One full turn of the key, door is now locked. To Open From Inside - Turn key and push down on the handle. To Open From Outside - Turn the key, push down on the handle and turn the key to release the door latch.