Timco Heavy Duty Hex Self-Drilling Screws, Silver Organic, 5.5x100mm (100pc)
Heavy-duty steel screws (100pc) with self-drilling tip & corrosion-resistant coating. Ideal for metal framing & exterior use.
The Timco Heavy Duty Hex Self-Drilling Screws provide a fast, secure, and reliable solution for attaching metal to heavy section steel (up to 12mm thick) without the need for pre-drilling. These screws are designed for durability and corrosion resistance, making them ideal for exterior applications where weather resistance is essential.
Key Features:
- Self-drilling point (No.5) allows for quick and easy installation, saving time and effort.
- Partially threaded (P/T) for strong grip and secure fastening.
- Exterior-grade silver organic plating ensures corrosion resistance, enduring up to 500 hours in salt-spray conditions.
- Case & core hardened carbon steel construction delivers high shear strength and long-term reliability.
- Hex head with an integrated fixed washer (Ø12mm) prevents pull-through and improves load distribution.
- 8mm socket size for easy driving with standard hex driver bits.
Applications:
These screws are perfect for heavy-duty metal framing, steel roofing, cladding, structural attachments, and industrial projects. Use in outdoor settings where corrosion resistance is critical, ensuring a strong, lasting hold even in harsh conditions.
- Steel framing
- Metal roofs & cladding
- Structural steelwork
- Exterior constructions
- Thread Diameter: **5.5mm**
- Length: **100mm**
- Head Type: **Hex**
- Fixed Washer Diameter: **12.00mm**
- Point Type: **Self-Drilling No.5**
- Socket Size: **8mm**
- Finish: **Exterior (Silver Organic)**
- Material: **Case & Core Hardened Carbon Steel**
- Effective Thread Length: **56mm (*P/T - Partially Threaded)**
- Max Drilling Thickness: **12.0mm**
- Pack Quantity: **100 pieces**
- Weight: **1560g**
Always follow local regulations and product guidance.
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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