Timco Hex Head Self-Drilling Screws 5.5x25mm (100 Pack)
Hex head self-drilling screws for roofing & steel framing. No pre-drilling – A2-304 stainless steel & carbon steel construction. 100pc pack.
The Timco Hex Head Self-Drilling Screws are designed for securely joining roofing sheets to light section steel up to 5.0mm thick, eliminating the need for pre-drilling. These high-performance screws combine durability and corrosion resistance for exterior applications.
Featuring a bi-metal construction, each screw has a hardened carbon steel drill tip fused onto an A2-304 austenitic stainless steel body, ensuring strength and longevity. The hex head design provides excellent grip and torque transfer during installation, while the integrated fixed washer (11.00mm diameter) ensures a reliable, vibration-resistant connection.
Key Benefits
- No pre-drilling required – Self-drilling No.3 point effortlessly penetrates steel up to 5.0mm thick
- Corrosion-resistant – A2-304 stainless steel construction withstands outdoor conditions
- Optimised for roofing – Ideal for fixing metal roofing sheets to light-gauge steel frames
- Sturdy fastening – Effective thread length (12mm) ensures solid engagement
Supplied in a convenient pack of 100 screws for professional and DIY projects alike.
- Fixing metal roofing sheets
- Light section steel framing
- Exterior construction projects
- Steel-to-steel applications
- Thread Dia.: 5.5mm
- Length: 25mm
- Head Type: Hex
- Fixed Washer Dia.: 11.00mm
- Point Type: Self-Drilling No.3
- Socket Size: 8mm
- Material: Bi-Metal (A2-304 Stainless Steel & Carbon Steel)
- Effective Thread Length: 12mm
- Max Drilling Thickness: 5.0mm
- Finish: Silver Organic
- Pack Qty: 100
- Weight: 460g
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.
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.
