Fast and reliable
The security of a door lock depends on the material that is used. We at Winkhaus use high-quality steel for our hooks. They feature an additional 25 mm unbolting width so that they can extend far into the keep rail and engage with the keep. The bolts are also bevelled on both sides so that they can be used for left and right hand operation. Thanks to the bevel, they pull the door to the frame tightly when closing. Draughts and moisture are kept out. This means that you can even retrofit a Winkhaus standard locking system. It is not even necessary to fit new keeps for this purpose. The same goes for patio doors equipped with the Winkhaus activPilot fitting system.