YALE 8K100 Window Lock

Formerly the Chubb 8K100 Window Lock, The Yale 8K100 is a very popular lock. This model can be fitted to most outward opening wooden windows, including casement (side hung), pivot, top hung, and sash windows. Supplied with fixing screws and strike for wooden frames.

The Yale 8k100 is a very popular lock. This model can be fitted to most outward opening wooden windows, including casement (side hung), pivot, top hung, and sash windows.

Each lock is supplied with a mortice plate and a plastic spacer along with fixings.

The Yale 8k100 has a small snib that can be turned to engage and disengage the bolt, this means that you can lock the windows from the inside with a key. For nightime locking or if you are going away on holiday, lock the unit with the key, this means that it will not open even if a criminal broke the glass in order to open the lock from the inside!

Fitting Instructions
If fitting to metal windows, you will not require the metal mortice plate or plastic spacer as the bolt, when engaged will lock against the fixed frame.
If installation is on recessed wooden windows you must install the metal mortice plate in the fixed frame at 90 degress to the opening frame, just like you would with a standard mortice door lock and stike plate.

1.) Place the lock body vertically on the opening frame of the window, try to install the lock as close to fixed lframe as possible but not close enough to stop the window from openingwhen unlocked. Mark the screw holes with a pencil.
2.) Use a 3.5mm drill bit to drill two 4mm deep holes on the areas you have just marked. LocksOnline Top Tip: Wrap a piece of tape around the drill bit 4mm from the tip, this will help you see when you have reached your desired depth.
3.) Screw the lock body onto the opening frame of the window.
(If you are installing this device onto metal windows then you are done! If installing onto wooden windows then go to step 4.)
4.) Place the metal mortice plate onto the fixed frame which should be at 90 degrees to the glass. Before marking the screw holes onto frame, ensure that the bolt engage and disengage smoothly. While holding the mortice plate in-place with your hand, mark the screw holes.
5.) Use a 3.5mm drill bit to drill two 10mm holes on the areas you have just marked.
6.) Lightly fix the lock to the fixed frame and ensure that the lock operates as it should, it should lock and unlock smoothly.
7.) Tighten the screws on both the mortice plate and lock body and insert the white cover caps over the screw holes to complete the job.