PC Phillips Countersunk Screw
PC Phillips countersunk screw is a high-performance engineering plastic fastener made from polycarbonate (PC), designed for applications requiring high impact resistance, transparency, electrical insulation, and dimensional stability. The PC Phillips countersunk screw features a 90° flat head (countersunk design) combined with a cross recessed drive, allowing flush installation with a clean and safe surface finish.
The PC Phillips countersunk screw is widely used in electronics, automotive interior components, lighting systems, transparent housings, and industrial assemblies where both mechanical strength and visual appearance are important.

Product Overview
The PC Phillips countersunk screw is engineered for high-strength plastic fastening applications requiring better toughness than PP or nylon screws. Polycarbonate material provides excellent impact resistance and maintains stability under moderate temperature conditions.
This PC Phillips countersunk screw is especially suitable for transparent or semi-transparent assemblies, electrical housings, and precision equipment where durability and appearance are critical. The countersunk head ensures a smooth, flush surface after installation.
As a reliable industrial plastic fastener, it is widely used in OEM manufacturing and engineering plastic assemblies.
Product Specifications
| Item | Description |
|---|---|
| Product Name | PC Phillips Countersunk Screw |
| Material | Polycarbonate (PC) |
| Head Type | Countersunk Head (Flat 90°) |
| Drive Type | Phillips Cross Recessed |
| Thread Type | Metric Machine Thread / Self-Tapping (optional) |
| Diameter Range | M3–M12 |
| Length Range | 6mm–100mm |
| Color | Transparent / Black / Custom |
| Density | ~1.20 g/cm³ |
| Electrical Conductivity | Non-conductive |
| Packaging | Bag / carton / OEM packaging |
| Customization | Size, color, thread type available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 55–70 MPa |
| Flexural Strength | High (better than PP) |
| Impact Resistance | Excellent (high toughness) |
| Heat Resistance | Up to 120°C |
| Chemical Resistance | Good (mild acids, oils) |
| Electrical Insulation | Excellent |
| Transparency | High (optional grades) |
| Manufacturing Standard | Industrial OEM specification |
Materials and Manufacturing Process
The PC Phillips countersunk screw is manufactured using precision injection molding and controlled processing techniques to ensure strength and optical stability.
- Raw material selection: High-grade polycarbonate resin
- Drying process: Moisture control before molding
- Injection molding: Formation of countersunk head structure
- Thread forming: Molded or secondary processed threads
- Cooling and stabilization: Ensures dimensional accuracy
- Trimming: Removal of flash and excess material
- Inspection: Dimensional, visual, and mechanical testing
- Packaging: Clean and protective packaging
Each PC Phillips countersunk screw is produced under strict quality control to ensure consistent performance.
Applications of the Product
PC Phillips countersunk screws are widely used in:
- Electronics: Transparent housings and device covers
- Automotive: Interior trim and lighting assemblies
- Lighting systems: LED fixtures and lamp housings
- Industrial equipment: Lightweight structural assemblies
- Medical devices: Transparent or clean equipment housings
- Consumer electronics: Display and protective covers
- Smart devices: Precision enclosure fastening systems
Their combination of strength and transparency makes them ideal for modern product design.
Why Choose This Product
- High impact resistance and toughness
- Excellent transparency (optional grades)
- Flush countersunk head for smooth installation
- Lightweight engineering plastic structure
- Non-conductive and safe for electronics
- Better heat resistance than PP and PE materials
- Suitable for precision OEM applications
- Custom colors and specifications available
- Stable performance in industrial environments
The PC Phillips countersunk screw offers a strong balance between mechanical performance and aesthetic design.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and engineering plastic components for global OEM industries.
- Advanced injection molding and tooling capability
- Stable mass production for OEM orders
- Custom engineering support for plastic fasteners
- Strict quality inspection and testing systems
- Global export experience in fastener manufacturing
- Technical consultation for material selection
Flybear provides reliable fastening solutions for electronics, automotive, and industrial plastic applications.
Quality Inspection and Control
Strict quality control ensures stable product performance:
- Raw material resin testing
- Dimensional accuracy inspection
- Tensile and impact strength testing
- Heat resistance validation
- Optical transparency inspection (if required)
- Thread fit testing
- Surface quality inspection
- Packaging verification
All production follows ISO-based quality management systems.
Selection Guide
When selecting PC Phillips countersunk screws, consider:
- Load and stress requirements
- Transparency requirements
- Temperature conditions
- Chemical exposure environment
- Electrical insulation needs
- Size and thread specifications
Proper selection ensures long-term stability and performance.
FAQ
1. What is a PC countersunk screw used for?
It is used for transparent or high-strength plastic assemblies requiring flush installation.
2. Is PC stronger than PP?
Yes, PC has significantly higher impact resistance and strength.
3. Can it be used outdoors?
Yes, but UV exposure should be considered depending on grade.
4. Is it transparent?
It can be made transparent or colored depending on requirements.
5. Can custom sizes be produced?
Yes, Flybear supports full customization.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.




