4mm x 8mm Pozi Countersunk Screw for Hard Plastics (PT45) - PZ2 Drive | BZP Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £0.18 | £0.22 |
| 50 - 99 | £0.11 | £0.13 |
| 100 - 249 | £0.07 | £0.09 |
| 250 - 499 | £0.06 | £0.07 |
| 500 - 999 | £0.04 | £0.05 |
| 1000 - 4999 | £0.03 | £0.04 |
| 5000 + | £0.03 | £0.03 |
£0.22 / each
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Product Specification
| Thread Size | 4.0mm |
| Thread Length | 8mm |
| Material | Steel BZP |
| Head Diameter | 7.35mm |
| Head Height | 1.90mm |
| Drive | PZ2 |
| Head Style | Countersunk |
Frequently Bought Together
Total Price: £0.00
4mm x 8mm Pozi Countersunk PT45 Screw for Hard Plastics | Bright Zinc Plated Steel
Suitable for polycarbonate mouldings and rigid plastic components, this 4mm x 8mm Pozi Countersunk screw uses the PT45 thread geometry intended for harder plastic components. The three-lobed thread body concentrates forming pressure at specific points while the countersunk profile allows the head to finish level with the surrounding surface.
What Are Pozi Countersunk PT45 Screws?
A PT45 Countersunk screw provides a middle ground between a sharp 30° plastic thread and a conventional self tapping screw. Its shorter 45° thread and trilobular form make it particularly useful in hard materials where secure engagement and a strong drive-to-strip ratio are required.
Common Applications
- Furniture Components: Secures suitable engineering-plastic fittings and panels used in furniture manufacture.
- Glass-Reinforced Plastics: Provides a specialised thread-forming fastening option for compatible reinforced plastic parts.
- Appliance Housings: Provides a dedicated fastening method for rigid plastic covers and moulded appliance parts.
- Lighting Products: Secures rigid plastic bezels, covers and housings where a flush finished face is useful.
4mm x 8mm Pozi Countersunk PT45 Screw Dimensions
- Thread Size: 4.0mm
- Thread Length: 8mm
- Head Diameter: 7.35mm
- Head Height: 1.90mm
- Drive: PZ2
- Material: Steel BZP
- Head Style: Countersunk
Key Benefits
- Correct pilot-hole diameter, boss size and countersink geometry should be selected for the material being assembled.
- 4mm thread size and 8mm thread length provide the primary fastening dimensions.
- PZ2 Pozi drive provides a widely available drive format for production and maintenance.
- Bright Zinc Plated Steel provides an economical metallic finish for general indoor hard-plastic assemblies.
See related dimensions and materials in the Pozi 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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