Description
Overview:
The Forgefix TechFast Hex Head Roofing Screw Self-Drill 5.5 x 70mm is a steel fixing designed for securing profiled cladding and sheet steel to light section steel purlins and frames. Supplied in a pack of 50 (code TFHL5570), each screw features a hex head for positive drive and a self-drilling point to remove the need for pilot holes, speeding up installation with a cordless drill/driver and hex socket. A factory-fitted rubber washer provides a permanent weather seal at the fixing point. For long-term outdoor use, the screws are zinc-plated and finished with an Elementech protective coating, proven in salt spray testing up to 1,000 hours. Size: 5.5mm x 70mm (0.22 inches x 2.76 inches). Ideal for roofing, cladding and general steel-to-steel assembly on light-gauge sections.
Key Features:
- 5.5 x 70mm size for cladding-to-light-section steel work (0.22 inches x 2.76 inches)
- Self-drilling point for light section steel; no pre-drilling required in typical applications
- Hex head for secure driving with a nut setter or hex socket, reducing cam-out
- Zinc-plated steel with Elementech coating for strong corrosion resistance outdoors
- Rubber washer creates a durable weather seal to help prevent leaks
- Tested to 1,000 hours salt spray for proven durability in harsh conditions
- Sharp, consistent thread for reliable bite and pull-out performance in light-gauge steel
- Clean seating under the bonded washer helps protect roof sheets and coatings
- Supplied as a 50-pack for efficient site use and job costing
- Suitable for use with standard cordless drill/drivers used by roofers and fabricators
Typical Applications:
Fixing profiled or flat cladding sheets, flashings, and ridge or verge components to light section steel purlins and rails. Suitable for metal roofing on commercial, agricultural, and domestic buildings, including workshops, garages, sheds, and industrial units. Useful for new installations, repairs, and replacing worn or corroded fixings where a sealed, corrosion-resistant roof fastener is required.
Also known as:
Tek screws, roofing tek screws, hex washer head screws, steel-to-steel self-drillers, cladding fixings, purlin screws, metal roofing fixings, light section fasteners, self-drilling roof fixings, sheet-to-steel screws.
Product Specifications
| L&S Part No. | FORTFHL5570 |
|---|---|
| Manufacturer | Forgefix |
| OEM No. | FORTFHL5570 |
| Unit of Sale | Pack of 50 |
| Size | 235mm x 60mm x 155mm |
| Key Features | - 5.5 x 70mm size for cladding-to-light-section steel - Self-drilling point eliminates need for pilot holes - Hex head ensures secure driving with hex socket - Zinc-plated with Elementech coating for corrosion resistance - Rubber washer provides a permanent weather seal |



