3mm x 20mm Torx Countersunk Screw for Hard Plastics (PT45) - T8 Drive | A2 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £0.61 | £0.73 |
| 50 - 99 | £0.37 | £0.44 |
| 100 - 249 | £0.24 | £0.29 |
| 250 - 499 | £0.18 | £0.22 |
| 500 - 999 | £0.15 | £0.18 |
| 1000 - 4999 | £0.12 | £0.15 |
| 5000 + | £0.09 | £0.11 |
£0.73 / each
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Product Specification
| Thread Size | 3.0mm |
| Thread Length | 20mm |
| Material | A2 Stainless Steel |
| Head Diameter | 5.50mm |
| Head Height | 1.50mm |
| Drive | T8 |
| Head Style | Countersunk |
Frequently Bought Together
Total Price: £0.00
3mm x 20mm Torx Countersunk PT45 Screw for Hard Plastics | A2 Stainless Steel
Ideal for external plastic fixtures and moisture-exposed assemblies, this 3mm x 20mm PT45 plastic screw is manufactured from A2 Stainless Steel with a Countersunk head and T8 Torx recess. The thread-forming profile displaces compatible plastic to create the mating thread without relying on conventional cutting action.
What Are Torx Countersunk PT45 Screws?
PT45 Torx Countersunk Screws use a three-lobed thread body that concentrates forming pressure around three points of the pilot hole. This geometry supports thread formation in harder plastics while the Torx recess provides high contact area for efficient torque transfer.
Common Applications
- Appliance Housings: Provides a dedicated fastening method for rigid plastic covers, panels and moulded components.
- Lighting Products: Secures rigid plastic bezels, covers and housings where a flush finished face is useful.
- Polycarbonate Housings: Forms a secure thread in suitable polycarbonate covers and housings while allowing a flush head finish.
- Automotive Components: Fastens rigid plastic trim and moulded parts where a low-profile screw head and Torx drive are beneficial.
3mm x 20mm Torx Countersunk PT45 Screw Dimensions
- Thread Size: 3.0mm
- Thread Length: 20mm
- Head Diameter: 5.50mm
- Head Height: 1.50mm
- Drive: T8
- Material: A2 Stainless Steel
- Head Style: Countersunk
Key Benefits
- Countersunk head allows a flush finished surface when installed into a correctly prepared recess.
- Trilobular geometry concentrates thread-forming pressure at three points rather than around a fully round profile.
- A2 Stainless Steel construction provides improved corrosion resistance for suitable demanding environments.
- T8 Torx drive provides positive engagement and efficient torque transfer.
See related dimensions in the Torx Countersunk PT45 Screw range. If you are designing a hard-plastic boss, our Engineering Guide to Screws for Plastic covers pilot-hole ratios, boss sizing and PT45 tolerances. For help, call 01233 713581.
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