But the SPAX® fits all those descriptions. At McFeely’s, we like to call it the ‘fastener from the future’. What makes the screw so innovative is its combination of a fully-threaded shank (for most versions) with a patented serration pattern, a patented head style called the MULTIhead, which countersinks the head flush with most materials, and a patented point called the 4CUT ™ which eliminates pre-drilling and splitting because of its square end which divides wood fibers.

That combination of the 4CUT ™ point and serrated thread is effective enough to eliminate pre-drilling unless you’re driving into either masonry or sheet metal better than 24 gauge. A special word of caution applies here, however. The fully-threaded versions of the SPAX® screw doesn’t allow for as much adjustment, once driven, as you may be accustomed to having. That’s because the thread forms a mechanical attachment in both the horizontal and vertical planes. That’s great for fastening items overhead but you may want to measure twice before using these screws. In that sense, they’re advanced fasteners for advanced woodworkers. There are few screws, if any, that will provide for as sound a joint as these. Accordingly, the SPAX ® screws have the German building code approval.