Description
Overview:
The Timco Winged Tip CSK Self Drilling Screws are heavy-duty steel fasteners for fixing into heavy section steel up to 12 mm. Each screw measures 5.5 x 45 mm and is made from strong steel with a protective finish for dependable, long-term use. A winged tip helps guide the screw and creates clearance in the top material before the drill point bites into the steel, while the countersunk Phillips head sits flush for a neat finish. They suit construction, metalwork, plant maintenance, and site fabrication, and are installed using a suitable power drill/driver with a Phillips bit. Supplied in a pack of 100, these screws offer a practical stock size for workshop and site work. Manufacturer Part Number: HW45B.
Key Features:
- 5.5 x 45 mm screws designed for drilling into heavy section steel up to 12 mm
- Winged tip promotes accurate starts and clearance through the top material for cleaner, tighter joints
- Self-drilling point removes the need for pre-drilling, speeding up installation and reducing tool changes
- Countersunk Phillips head gives a flush finish to minimise snagging and improve appearance
- Robust steel construction with a protective finish for durability and wear resistance
- Reliable driving engagement via the Phillips recess for controlled torque and reduced cam-out
- Suitable for professional and DIY use across construction, fabrication, and maintenance tasks
- Supplied as a pack of 100 for efficient stocking on site or in the workshop
- Timco quality with consistent sizing to support accurate, repeatable fastening
- MPN: HW45B for easy identification and reordering
Typical Applications:
Fixing brackets, plates, channels, and sheet components to steel beams or box sections up to 12 mm; securing timber or composite cladding to steel; assembling guards, covers, and racking; plant and machinery repairs; M&E containment and duct support work; general fabrication where a flush countersunk finish is required.
Also known as:
Tek screws (countersunk), wing-tip countersunk drillers, CSK wing drillers, metal-to-metal countersunk fixings, winged CSK Tek fasteners, Phillips CSK Tek fixings.
Product Specifications
| L&S Part No. | 903 2059 |
|---|---|
| Manufacturer | Timco |
| OEM No. | HW45B |
| Unit of Sale | Pack of 200 |
| Size | 5.5 x 50 |
| Key Features | - 5.5 x 45 mm screws for steel up to 12 mm - Winged tip ensures accurate starts and clearance - Self-drilling point eliminates need for pre-drilling - Countersunk Phillips head provides a flush finish - Pack of 100 for efficient stocking and use |
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