4.2mm x 25mm Torx Countersunk Self Drilling Screw (T20) Security Torx | Delta Protekt® Hardened Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 99 | £0.62 | £0.75 |
| 100 - 999 | £0.53 | £0.63 |
| 1000 - 9999 | £0.45 | £0.54 |
| 10000 + | £0.32 | £0.38 |
£0.75 / each
.png)
Product Specification
| Thread Size | 4.2mm |
| Length | 25mm |
| Drive | T20 |
| Head Diameter | 7.9mm |
| Head Height | 3.0mm |
| Material | Delta Protekt® Hardened Steel |
| Standard | Security Torx |
Frequently Bought Together
4.2mm x 25mm Torx Pan Head Self Drilling Screw (T20) Security Torx | Delta Protekt® Hardened Steel
Total Price: £0.00
4.2mm x 25mm Security Torx Countersunk Self Drilling Screw | Security Torx | Delta Protekt® Hardened Steel
For workshop fabrication, repairs and general metal assembly, this 4.2mm x 25mm Security Torx self drilling screw can create its own entry hole in compatible metal before the thread engages the receiving material. The countersunk profile is useful where clearance, appearance or the positioning of adjacent parts requires a flush fixing. The Delta Protekt® Hardened Steel construction combines a hardened fastener body with a protective coating for demanding metal fastening applications.
What Are Countersunk Self Drilling Screws?
Self Drilling Countersunk Screws are metal fasteners that can drill and fasten during the same installation process in suitable materials. Their tapered head is designed to sit level with or below the surrounding surface which helps maintain clearance around covers, panels and adjoining components.
Common Applications
- HVAC and Ventilation: Secures suitable ducting accessories, covers and fabricated metal fittings where a countersunk finish is required.
- Control Cabinets: Provides a flush fixing for mounting plates, panels and compatible metal components in control equipment.
- Signage and Displays: Keeps the fixing head close to the surface on suitable metal signs, frames and display assemblies.
- Workshop Fabrication: Supports general repairs, prototype work and metal assembly using compatible sheet or light-gauge sections.
4.2mm x 25mm Security Torx Countersunk Self Drilling Screw Dimensions
- Thread Size: 4.2mm
- Length: 25mm
- Head Height: 3.0mm
- Head Diameter: 7.9mm
- Drive: T20
- Standard: Security Torx
- Material: Delta Protekt® Hardened Steel
Key Benefits
- Self-tapping thread forms a mating thread as the screw is driven into compatible material.
- Low-profile installed finish suits panels, covers and assemblies where clearance is important.
- 7.9mm head diameter provides the stated countersunk bearing width.
- Security Torx identifies the recorded standard or drive format for this product.
Compare more sizes in our Countersunk Self Drilling Screws range. If a countersunk head is not the right fit, see our wider self drilling screws range for other self-drilling screw styles. If you are unsure which drive or standard suits your application, contact our team on 01233 713581.
Fri 8.30 am - 3.30 pm
