Timco Self-Drilling Hex Screws for Heavy Steel, Zinc, 5.5x80mm, 100pk
100 Zinc-plated self-drilling hex screws for heavy section steel up to 12mm thick. No pre-drilling required.
The Timco Self-Drilling Screws are engineered for attaching metal to heavy section steel up to 12mm thick, eliminating the need for pre-drilling and saving valuable time during installation. These high-performance screws feature a robust zinc finish for excellent corrosion resistance and durability.
Constructed from case and core hardened carbon steel, these screws offer superior strength and reliability. The hex head design ensures a secure grip with power tools, while the fixed EPDM washer provides a secure, weatherproof seal against moisture ingress.
Key Features
- Self-drilling No. 5 point eliminates need for pre-drilling
- Partially threaded design for controlled material clamping
- Corrosion-resistant zinc finish
- Includes EPDM washer for weatherproof sealing
- Case and core hardened carbon steel construction
Technical Specifications
- Thread diameter: 5.5mm
- Length: 80mm
- Head type: Hex
- Fixed washer diameter: 11.00mm
- Socket size: 8mm
- Effective thread length: 53mm (P/T)
- Maximum drilling thickness: 12.0mm
Perfect for construction, metal roofing, and structural applications requiring strong, reliable fastening solutions without the hassle of pre-drilling.
- Metal-to-heavy steel applications
- Structural steel framing
- Metal roofing installations
- Industrial construction projects
- Thread diameter: 5.5mm
- Length: 80mm
- 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: 53mm (P/T)
- Max drilling thickness: 12.0mm
- Quantity: 100 pieces
- Weight: 1340g
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty 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 employs 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 basket 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 request you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
