Timco Self-Drilling Hex Screws for Heavy Steel, Zinc (5.5x55mm, 100pc)

The Timco Self-Drilling Hex Screws are specifically designed for attaching metal to heavy section steel without the need for pre-drilling, making installation quicker and more efficient. These screws feature a self-drilling No.5 point that easily penetrates steel up to 12mm thick, saving time and effort on your projects.

Constructed from case and core hardened carbon steel, these screws offer exceptional durability and resistance to wear. The zinc finish provides enhanced corrosion resistance, ensuring longevity even in harsh environments. Each screw comes with a fixed EPDM washer, which helps create a watertight seal, preventing leaks and improving structural integrity.

Key Features:

• No pre-drilling required – Self-drilling point for quick and easy installation
• Hex head design – Allows for secure fastening with a wrench or socket
• EPDM washer included – Ensures a tight, weather-resistant seal
• High-strength carbon steel – Provides excellent durability
• Zinc finish – Enhances corrosion resistance

These screws are ideal for construction, metalworking, and industrial applications where secure and weather-resistant fastening is essential. Their robust design and high-performance characteristics make them suitable for use in sheds, garages, roofing, and structural steelwork.