Timco Hex Head Self-Drilling Screws, Bi-Metal, 5.5x50mm (100pc)
Hex head self-drilling screws for roofing & cladding. A2-304 stainless steel bi-metal construction, no pre-drilling required.
The Timco Hex Head Self-Drilling Screws provide a strong and reliable fastening solution for joining roofing sheets to light section steel (max. 5.0mm thickness) without the need for pre-drilling. These screws feature a hardened carbon steel drill tip fused to an A2-304 austenitic stainless steel body, ensuring excellent durability and corrosion resistance for exterior applications. The bi-metal construction delivers optimal strength and drilling efficiency.
Features & Benefits
- Self-drilling design eliminates the need for pilot holes
- Hex head with 8mm socket size for secure tool engagement
- Fixed washer (11mm diameter) ensures tight and stable fastening
- Effective thread length of 37mm enhances grip
- No.3 self-drilling point provides excellent penetration
Perfect for roofing and cladding applications, these screws are ideal for professional tradespeople requiring robust, weather-resistant fasteners.
- Joining roofing sheets to light section steel
- Exterior construction
- Cladding and structural fastening
- Metal roofing applications
- Thread Diameter: 5.5mm
- Length: 50mm
- Head Type: Hex
- Fixed Washer Diameter: 11.00mm
- Point Type: Self-Drilling No.3
- Socket Size: 8mm
- Material: Bi-Metal (A2-304 Stainless Steel / Carbon Steel)
- Effective Thread Length: 37mm
- Max Drilling Thickness: 5.0mm
Always follow local regulations and product guidance. Use appropriate PPE.
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.
