Even classic wooden window frames require window fittings, and for this purpose, we offer the perfect solution with the FEX-H. Like many of our wood screws, it features a 4CUT tip that ensures clean and easy insertion into the wood while reducing the screwing torque. The countersunk head with brake ribs ensures that you always drive the screw in precisely to the depth where the metal of the fitting is not damaged. This means for you: screw heads that always match the fitting perfectly and are efficient to work with.