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Power Tools Direct£9.74Visit shop Timco Silver H65b Metal Construction Heavy Section Screws - Hex - Self-Drilling - Exterior - Organic 5.5 X 65 Box 100
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This guide is for professionals and DIY enthusiasts needing to securely fasten metal to heavy section steel up to 12mm thick. The key benefit is its self-drilling capability, eliminating the need for pre-drilling, saving time and effort. A caveat to consider is its suitability primarily for steel substrates, with a Corrosion Rating of 3. Key features include a case and core hardened carbon steel construction, a 110-degree drill tip angle for efficient penetration, and a silver organic exterior finish providing corrosion resistance.
| Colour | Silver |
|---|---|
| Model Part Number | H65B |
| Brand | TIMCO |
These screws are designed to penetrate a maximum of 12mm of heavy section steel.
No, the key feature of these screws is their self-drilling capability, eliminating the need for pre-drilling.
The recommended RPM for optimal performance is between 1,000 and 1,800 RPM.
These screws have a Corrosion Rating of 3, suitable for urban and industrial areas, and resist up to 500 hours of salt-spray testing.
The head type is Hex, and it requires an 8mm socket size for driving.
Yes, they have an exterior silver organic finish and are rated for Corrosion Resistance 3, making them suitable for many exterior applications, especially in urban and industrial environments.
Ensure the drill RPM is within the recommended 1,000-1,800 range. Check if the steel thickness exceeds the 12mm maximum. Verify that the screw point is sharp and undamaged. Use adequate downward pressure.
The material may be too thin, or the pilot hole (if pre-drilled) is too large. Ensure the self-drilling point is properly engaging the steel. Check for any damage to the screw threads.
Ensure the correct 8mm socket size is being used and that it is seated properly before applying torque. Avoid excessive force once the screw is seated.
While rated for Corrosion Resistance 3 and 500 hours salt spray, prolonged exposure in extreme environments can eventually cause corrosion. Store screws in a dry place and consider protective sealants for critical applications.
Setup: Ensure you have a power drill or impact driver with a compatible 8mm socket or bit. Set your drill to a suitable RPM between 1,000 and 1,800 for optimal performance. Position the screw at the desired location on the steel substrate and drive it until the integrated washer is seated firmly against the metal being attached. Do not over-torque the screw.
Compatibility: These screws are specifically designed for drilling into and fastening metal to heavy section steel (up to 12mm thickness). They are approved under BS EN 10666 (DIN 7504). Compatibility with materials other than steel is not guaranteed.
Care: Store screws in a dry environment to maintain their corrosion resistance. Regularly check your tools for any damage that could affect installation. If working in highly corrosive environments, consider additional protective coatings or sealants after installation.
