SPAX 604395Universal Screw 3.5 x 20mm T-Star + Stainless Steel A2 200pc

This special drive is a so-called hexalobular internal. Compared to less precise-fitting drive types like Phillips or cross recess, the contact surface is many times larger with our T-STAR plus, and the T-STAR bits are always positioned optimally in the screw head. The maximum, precise force transmission from the screwdriver to the screw that results from the use of T-STAR plus thus enables simple and ultra-fast work with much more efficiency than with other drives. What this means for you: No more annoying bit slips from the screw head – you can take care of serial fastening in no time at all! Screw connections can also be true eye-catchers if required, with screw heads even presenting a key design element. Our universal screw with pan head is the best example of this! The practically spherical design of the screw head with T-STAR plus drive is particularly suitable for the visible attachment of metal fittings on wood. The flat underside of the head lies flush against the metal, making the pan head both a necessary and attractive part of the fitting. Meanwhile, the WIROX surface adapts to the colour of the high-quality metal fittings.

What this means for you: No forfeiting the appearance of high-quality fittings through mismatched screw heads. In contrast to the partial thread, the full thread on most of our full-thread screws covers the entire – or most of – the screw length from tip to head. The more thread turn a screw has, the greater the tensile and compressive forces that can be absorbed by these screws. We make particular use of this in structural wood construction, where our full-thread screws are called upon for heavy-duty wood connections. What this means for you: Wood connections with full-thread screws offer maximum reliability when it comes to resilience, and there's no need to use any ugly zinc-plated fittings! The term 4CUT is used to describe the fact that the point of our screws is not rounded, but rather shaped like an arrow. These four edges displace the wood fibres upon insertion and thus create space for the core diameter of the screw. The otherwise inevitable expansion at the core of the wood is effectively reduced, minimising wood splitting around the edges.

The required cordless screwdriver torque is also reduced, since the screw core no longer needs to "squeeze" into the wood. What this means for you: Practically no pre-drilling required any longer – even in the edge areas of your workpiece that are normally prone to splitting! The 4CUT means you can skip an entire work step. With our stainless-steel screws, the abbreviation A2 refers to the alloy of the steel. "A" stands for austenite, a mix of iron and carbon with the alloying elements chrome, nickel and molybdenum. The 2(1-5) describes the alloy grade, in other words, the chrome and nickel content. Screws made of stainless steel A2 offer a high level of protection against corrosion and medium strength, However, they have low resistance to saltwater and acids. They are therefore a reliable, durable choice for outdoor applications in non-coastal areas. What this means for you: With our stainless steel A2 screws, you are optimally equipped for corrosion-resistant fastening in virtually all non-coastal construction projects.