SPAX A2 Grade Stainless Steel Full Thread Flat Countersunk Head Timber Construction Screws

The full thread construction screw with universal applications and corrosion protection for use in damp/ wet areas or outdoor use.

Features and benefits:

• No rust marks.
• Long lasting.
• T STAR plus bit recess.
• Pre-drilling recommended.
• 4CUT point ensures safe fastening with low effort, reduces splitting of the wood and reduces the screwing-in torque required.
• Quick and safe fastening.
• Mills into the wood.
• Countersinks easily.
• Fix close to an edge.
• A4 grade screws also available, specified separately.

The countersunk head (or flat countersunk head) is the most common head geometry in the world of SPAX. It has a conical shape and, in the case of SPAX, is characterized by the 90° MULTI head. The countersunk head screws offer the ideal compromise between maximum resistance to tightening torques and a discreet and attractive screw connection. With its polygonal underside ("pockets"), the flat countersunk head mills its own way into the wood and can therefore be countersunk into the wood cleanly and flush without having to pre-drill the screw hole.

• In contrast to the partial thread, the full thread on most of SPAX’s 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 the full-thread screws are called upon for heavy-duty wood connections.
• The CUT point on SPAX screws enables the ultra-fast and effective insertion of wood screws without pre-drilling. In combination with the serrations, the arrow-shaped CUT point reduces wood splitting and tearing. The CUT point also enables extremely precise and sturdy setting of the screw tip on smooth surfaces.
• 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.