Description
Overview:
The Timco Hex Self-Drilling Screw 5.5 x 50 is a heavy-duty metal-to-metal fixing for construction, roofing, and general fabrication work. Made from strong steel and finished for reliable performance, it drills its own pilot hole and taps its own thread, removing the need for pre-drilling in most applications. The 5.5 mm diameter (approx. 0.22 in) and 50 mm length (approx. 1.97 in) make it suitable for fastening through heavy section steel and sheet materials, with a working thickness around 12 mm where specified. The hexagon head gives positive drive using a suitable hex socket on a cordless drill or impact driver. Supplied in a pack of 100 for efficient site or workshop use. Brand: Timco. Manufacturer Part Number (MPN): H55B.
Key Features:
- Self-drilling point for quick metal-to-metal fastening without pre-drilling
- Hexagon head for secure grip and controlled torque during installation
- Steel construction for strength in demanding applications
- 5.5 mm x 50 mm size (approx. 0.22 in x 1.97 in) suits common roofing and cladding tasks
- Suitable for use on heavy section steels and structural sheet fixings around 12 mm thickness
- Consistent thread for firm clamping of metal panels and profiles
- Clean drilling and tapping help reduce installation time and bit changes
- Compatible with cordless drills and impact drivers using an appropriate hex socket
- Pack of 100 to cover larger jobs and maintenance stock
- Timco quality for dependable, repeatable performance on site
Typical Applications:
Fixing profiled roofing and cladding sheets to steel purlins, assembling metal frames and brackets, attaching flashings and trims, mounting ducts and trunking, securing machine guards and covers, and general repairs on sheds, trailers, farm buildings, and site fabrications where fast, reliable metal-to-metal fixing is needed.
Also known as:
Hex self-drillers, tek screws, metal-to-metal drilling screws, hex washer head fixings, self-drilling fasteners, roofing screws for steel, hex drive drill-point screws, self-drilling sheet metal screws.
Product Specifications
| L&S Part No. | 903 2029 |
|---|---|
| Manufacturer | Timco |
| OEM No. | H55B |
| Unit of Sale | Pack of 100 |
| Size | 5.5 x 55 |
| Key Features | - Self-drilling point eliminates need for pre-drilling - Hexagon head ensures secure grip and torque control - Steel construction suitable for demanding applications - 5.5 mm x 50 mm size for roofing and cladding - Pack of 100 for large jobs and maintenance stock |
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