R-ONR-55/63 Self-drilling screws for fixing sandwich panels to steel construction up to 12 mm, zinc-flake 6.3/5.5x211 mm with washer A19 RAL 9007 - cardboard box - 100 pcs.

Highly effective corrosion protection is provided by a special zinc flake coating. The self-drilling tip's unique approach angle enables direct installation without predrilling, up to 12mm. A self-vulcanizing EPDM washer, resistant to both temperature and UV, ensures a proper seal by seating the sealing material correctly on the outer cladding. The thread's shape and height are designed for use in sandwich panels and steel construction. An additional layer of protection against corrosion is provided by a coloured polyester coating, 45-50um thick, which also maintains colour quality over time due to UV stabilizers. Two types of threads are present: one for steel structures, and another under the head to prevent panel dents and aid in sealing. The screw's thread surface is hardened, and a high-quality anti-corrosion coating ensures resistance for up to 15 Kesternich cycles.

• Advanced Anti-Corrosion Shield: Zinc flake coating for superior protection
• Direct Installation: Self-drilling tip for no predrilling up to 12mm
• Sealed Protection: UV & temperature-resistant EPDM washer ensures proper sealing
• Versatile Design: Thread shape and height optimized for sandwich panels and steel
• Extra Corrosion Barrier: Colored polyester coating for added protection
• Dual-Thread Technology: Mounts securely into steel structures and prevents panel damage
• Durable Surface & Anti-Corrosion: Hardened thread surface and 15 Kesternich cycles resistance
• Corrosion Defense: Special zinc flake coating for robust anti-corrosion performance