The SPAX typical drive T-STAR plus is a so-called internal hexagon. This shape increases the contact surface, allowing the T-STAR plus bits to fit optimally in the screw head. The best possible power transfer from the screwdriver to the screw through T-STAR plus enables quick work, significantly more efficiently than with any other drives.

The countersunk head (or flat countersunk head) mills a recess into the wood with its polygonal underside ("pockets"), allowing it to be sunk without additional countersinking of the screw hole. The countersunk head sits flush with the surface.

The screws with partial thread are excellent for fastening thin components such as wood-based panels, boards, or floorboards to thicker components like beams or posts. The short thread screws into the thick component, while the unthreaded shaft remains in the attachment component. This creates maximum clamping pressure between the two. The unthreaded part should be at least equal to the thickness of the attachment component.

The CUT tip of our SPAX screws allows for extremely fast and effective driving without pre-drilling. The arrow-shaped CUT tip, combined with the shaft profile, reduces splitting and tearing of the wood. Additionally, the CUT tip enables very precise and slip-resistant placement of the screw tip even on smooth surfaces.

With WIROX, SPAX has developed a coating that is far superior to galvanization in terms of corrosion protection. WIROX does not use chromium (VI), and the screws remain just as durable and environmentally friendly even after years in non-directly weather-exposed outdoor areas. WIROX screws are the first choice for all open structures without direct weather exposure, such as carports or pergolas. For direct weather exposure, such as on terraces, we recommend our screws in stainless steel.