The Kraftangriff Kreuzschlitz Z is an advancement of the basic Phillips screwdriver drive developed by the Philips Screw Company. The difference lies in the fact that the four sides of the screwdriver blade are not tapered towards the tip. This increases the lateral grip of the bit and reduces the cam-out effect that occurs with conventional Phillips drives due to the tapering, as the torque of the cordless screwdriver pushes the screwdriver bit upwards.

Where the countersunk screw is designed to sink the screws flush, the lens countersunk head has a convex curvature. Depending on the type of screw and surface finish (stainless steel, nickel-plated, antique), these screws become a decorative element, for example, in furniture construction or when attaching baseboards.

In contrast to partially threaded screws, the full thread extends along the entire length of the screw. The more threads a screw has, the greater the tensile and compressive forces that can be transferred from the screw to the wood. Our full-thread screws are primarily used for high-load wood connections.

The term 4CUT refers to the square shape of the screw tip. These edges displace the wood fibers when screwing in and create space for the core diameter of the screw. The pressure that the core exerts on the wood is thereby reduced, preventing the wood from splitting near the edge. The required torque of the cordless screwdriver is also reduced, as the core of the screw does not need to be "pressed" into the wood.

A nickel alloy is a finishing process that gives the screws a chrome-like, slightly yellowish appearance. Nickel-plated screws are perfect for indoor use. For outdoor applications, we recommend our screws with WIROX coating for non-direct weather exposure, while for direct weather exposure, only stainless steel of quality A2 or A4 is recommended.