• Advanced Self-Drilling No.3 Point: Engineered to drill directly into steel sub-structures, eliminating the need for pre-drilling and speeding up installation.

• Weatherproof 16mm EPDM Washer: High-grade EPDM washer compresses to create a permanent, water-tight seal against the panel surface.

• Enhanced Corrosion Protection: Silver organic exterior finish offers a corrosion rating of 3, perfect for durability in urban and industrial environments.

• Heavy-Duty Dual Thread Design: Optimized with a dual 60 degree thread to provide a secure, high-tension fix for panels between 130mm and 160mm thick.

• Hardened Carbon Steel Strength: Manufactured from case and core hardened carbon steel to withstand the demands of professional metal construction.

Description

These premium 5.5/6.3 x 180mm Metal Construction Composite Panel Screws are high-performance fasteners specifically designed for fixing thick composite panels to steel sub-structures. Featuring a precision-engineered dual 60 degree self-tapping thread, these screws provide maximum grip and structural stability for panels with a thickness between 130mm and 160mm. Each screw is equipped with a 16mm EPDM washer that creates a premium, weather-tight seal to protect against leaks and moisture ingress in exterior environments.

Built for speed and durability, these fasteners feature a No.3 self-drilling point that pierces metal surfaces without the need for pre-drilling. The case and core hardened carbon steel construction ensures the strength needed for heavy-duty industrial cladding and roofing. To protect against the elements, these screws are finished with a silver organic coating, providing a corrosion rating of 3, which is ideal for urban and industrial areas. These hex head fasteners are the professional choice for ensuring a secure, long-lasting, and weatherproof finish on large-scale construction projects.