Reliable weatherproof installations with Spax
- Watertight outdoor protection: The pre-fitted 20 mm EPDM sealing washer ensures you keep weather and water ingress completely away from drill holes.
- Splinter-free timber fastening: The 4CUT tip displaces wood fibres smoothly, so you can drive screws close to edges without pre-drilling or splitting.
- Secure drive engagement: The T-STAR plus T20 recess provides you with precise bit fitment and efficient torque transfer without slipping.
With Spax plumber screws, you can securely fasten roof panels, facade cladding, and metal profiles to timber substructures with a reliable watertight seal. The integrated 20 mm epdm sealing washer completely blocks moisture from entering drill holes, while the A2 stainless steel construction prevents rust and corrosion in exposed outdoor environments. Thanks to the 4CUT point, you can drive screws smoothly without pre-drilling, avoiding timber splitting close to edges. The t-star plus T20 recess delivers precise bit engagement and efficient torque transfer without slipping. This box of 70 screws measuring 4.5 x 55 mm gives you everything needed for durable, weatherproof exterior installations.
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 the building materials used must be water-resistant, but also the connecting materials are part of a well-considered 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 the 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.