Timco Heavy Section Screws, Hex Head, 5.5x55mm, EPDM Washer, 100pc

The Timco Heavy Section Screws provide high-strength fastening solutions for metal-to-metal applications. These self-drilling screws eliminate the need for pre-drilling through their hardened carbon steel drill tip, making installation quick and efficient. The screws are designed to attach metal to heavy section steel (maximum 12mm thickness), ensuring robust connections in structural applications.

Constructed with an A2-304 austenitic stainless steel body and a bi-metal composition, these screws offer excellent corrosion resistance and durability, making them suitable for exterior applications. The fixed EPDM washer ensures a watertight seal, preventing leaks and enhancing the fastener's effectiveness in outdoor environments.

Key Benefits

• Self-drilling design: No pre-drilling required
• High strength: Ideal for structural applications
• Corrosion resistant: A2-304 stainless steel body
• Weatherproof seal: Fixed EPDM washer prevents water ingress
• Hex head design: Provides superior torque during installation

Specifications

• Thread diameter: M5.5
• Length: 55mm
• Head type: Hex
• Washer diameter: 11.00mm
• Point type: Self-Drilling No.5
• Socket size: 8mm
• Material: Bi-Metal / A2-304 Stainless Steel / Carbon Steel
• Effective thread length: 31mm
• Max drilling thickness: 12.0mm
• Pack quantity: 100 pieces