The SPAX typical drive T-STAR plus is a so-called internal hexagon. This shape increases the contact surface of our T-STAR plus, allowing the T-STAR plus bits to fit optimally in the screw head. The best possible power transmission from the screwdriver to the screw through T-STAR plus enables quick work, and it is significantly more efficient than all other drives. The screws with partial threads are excellently suited for fastening thin components such as wood-based panels, boards, or planks to thicker components like timber or beams. The short thread screws into the thick component, while the unthreaded shaft remains in the attachment. This creates maximum clamping pressure between the two. The unthreaded part should be at least as thick as the attachment. The term 4CUT refers to the square shape of the screw tip. These edges displace the wood fibers during insertion and create space for the core diameter of the screw. The spreading pressure exerted by the core in the wood is thus reduced, preventing the wood from splitting near the edges. Additionally, the required torque of the cordless screwdriver is reduced, as the core of the screw does not have to "squeeze" into the wood. The abbreviation A2 in our stainless steel screws comes from the alloy of the steel. Screws made of stainless steel A2 offer high protection against corrosion and medium strengths. Their resistance to seawater and acids is low. Therefore, they are used for outdoor applications in areas far from the coast.