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 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.
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