Weatherproof fastening for exterior installations
- Reliable sealing against moisture: The integrated 20 mm sealing washer seals drill holes tightly, helping you protect wooden sub-structures from water ingress.
- Corrosion resistant A2 stainless: Made from A2 stainless steel, you can securely mount roofing sheets and cladding panels without risk of rust.
- Plumbing screw with T20 drive: The T20 drive ensures efficient torque transfer, allowing you to drive screws cleanly into wood without slipping.
With the Spax plumbing screw, you can mount sheet metal, facade cladding, and roofing panels securely watertight to wooden sub-structures. The integrated 20 mm sealing washer firmly seals the drill hole, preventing rainwater from penetrating your timber construction. Crafted from corrosion-resistant A2 stainless steel, this 4.5 x 45 mm screw delivers long-lasting durability in outdoor conditions. Its smart 4CUT point displaces wood fibres smoothly to minimise timber splitting near edges while reducing driving resistance. The t-star plus T20 recess provides maximum torque transfer without bit slippage, giving you full control during installation. This pack of 80 pieces ensures a fast, dependable, and professional exterior finish.
Product description
- No splitting of the wood, even at small edge distances
- High resistance to weathering and corrosion
- Quick and reliable processing with little effort
- Application: exterior and roof applications - exposed to weather influences
Nothing can damage a structure as much as water penetration. To prevent this, not only do the building materials used have to be water-resistant, but the connecting materials are also part of a well-thought-out sealing system. The SPAX gusset screw is used where plastic roof panels, metal sheets or connection profiles must be fastened tightly and permanently.
For this purpose, our washer screw is made of stainless steel and comes with an EPDM sealing washer already inserted. The latter prevents water from penetrating into the roofing and construction via the drilled hole. Unlike other products, our sealing ring consists of a single piece with a diameter of 20 mm. This benefits not only the seal itself, but also pressure distribution on the often sensitive plastic or metal surfaces.
Screw and sealing ring are made of A2 stainless steel and can easily withstand exposure to weather conditions. In addition to the larger sealing ring, it is above all our own SPAX features that make our SPAX mortise screw so special: these include the T-STAR plus power gripping and the 4CUT tip, which offer unique processing advantages.
What this means for you: you can reliably fasten roof boards and cladding with a single working step and permanently seal the fastening points.