These specially developed self-drilling screws made of A2 stainless steel offer an efficient and durable solution for fastening wooden profiles to aluminum substructures. They are designed for outdoor applications such as terraces, facades, or privacy screens, where maximum load-bearing capacity, a clean appearance, and weather-resistant material are required.

Thanks to the innovative drill tip, pre-drilling in aluminum is not required. The self-drilling geometry allows for fast, clean penetration up to 3.5 mm material thickness. The 3-zone countersunk head ensures splinter-free, flush countersinking in the wood, thus preventing visible tear-out – ideal for high-quality installed planks or facade profiles.

The martensitic stainless steel A2 (material no. 1.4567) used combines high corrosion resistance with optimal flexural strength. This ensures the screws can withstand dynamic loads caused by the swelling and shrinking of the wood over the long term. The TX25 drive offers maximum torque transmission while maintaining a secure fit – for smooth assembly, even in series production.

Technical details:

• Head shape: 3-zone countersunk head
• Drive: TX25 (internal star)
• Diameter: 5.5 mm
  
• Tip: Self-drilling, suitable for aluminum up to 3.5 mm thick
• Material: Stainless steel A2, material no. 1.4567
• Surface: Plain (uncoated)
• Areas of application: Terraces, facades, privacy screens, wooden profiles on aluminum substructures
• Corrosion-resistant: Suitable for outdoor applications
• Available lengths (diameter: 5.5 mm): 35 mm, 40 mm, 45 mm, 50 mm, 60 mm
• Available packaging units: 100 or 200 pieces, depending on length

These screws were developed for professional requirements: robust, easy to assemble and visually unobtrusive – for construction projects where function and aesthetics go hand in hand.

Rely on a connection that lasts – permanently, securely and precisely.