Timco Self-Drilling Hex Screws for Heavy Steel, Zinc (5.5x55mm, 100pc)
Heavy-duty self-drilling screws for steel (12mm max). Zinc-coated, with EPDM washer. 100pc pack.
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.
- Attaching metal to heavy section steel (up to 12mm)
- Construction projects
- Steel framing
- Roofing installations
- Thread Diameter: 5.5mm
- Length: 55mm
- Head Type: Hex
- Fixed Washer Diameter: 11.00mm
- Point Type: Self-Drilling No.5
- Socket Size: 8mm
- Finish: Zinc
- Material: Case & Core Hardened Carbon Steel
- Effective Thread Length: 33mm
- Max Drilling Thickness: 12.0mm
- Pack Quantity: 100 pieces
- Weight: 988g
Always follow local regulations and product guidance.
Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicySecure Transactions
We take the utmost care with your payment and personal details. Our website uses advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your cart and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll ask you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
