PC Slotted Countersunk Screw
PC slotted countersunk screw is a high-performance engineering plastic fastener made from polycarbonate (PC), designed for applications requiring high impact resistance, transparency, electrical insulation, and flush surface installation. The PC slotted countersunk screw features a 90° flat head (countersunk design) with a slotted drive, allowing the screw head to sit level with the surface after installation.
The PC slotted countersunk screw is widely used in electronics, automotive interior components, lighting systems, transparent housings, and industrial plastic assemblies where both mechanical strength and appearance are important.

Product Overview
The PC slotted countersunk screw is engineered for precision fastening in lightweight and transparent assemblies. Polycarbonate material provides significantly higher impact resistance compared to PP, PVC, and standard nylon materials, making it suitable for more demanding structural applications.
This PC slotted countersunk screw is commonly used where flush installation and visual clarity are required, such as transparent covers, protective panels, and electronic device housings. The slotted drive allows simple installation using standard screwdrivers.
As a reliable industrial plastic fastener, it combines strength, aesthetics, and electrical insulation performance for modern OEM designs.
Product Specifications
| Item | Description |
|---|---|
| Product Name | PC Slotted Countersunk Screw |
| Material | Polycarbonate (PC) |
| Head Type | Countersunk Head (Flat 90°) |
| Drive Type | Slotted |
| 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 |
| Impact Resistance | Excellent (high toughness) |
| Heat Resistance | Up to 120°C |
| Chemical Resistance | Good (mild acids, oils) |
| Electrical Insulation | Excellent |
| Transparency | Optional high transparency grade |
| Water Absorption | Low |
| Manufacturing Standard | Industrial OEM specification |
Materials and Manufacturing Process
The PC slotted countersunk screw is manufactured using precision injection molding and controlled processing techniques to ensure stability and dimensional accuracy.
- Raw material selection: High-grade polycarbonate resin
- Drying process: Moisture control before molding
- Injection molding: Formation of countersunk head structure
- Slotted drive forming: Integrated mold design
- Thread forming: Molded or secondary processed threads
- Cooling and stabilization: Reduces internal stress
- Trimming: Removal of flash and excess material
- Inspection: Dimensional, optical, and mechanical testing
- Packaging: Clean and protective packaging
Each PC slotted countersunk screw is produced under strict quality control to ensure consistent industrial performance.
Applications of the Product
PC slotted countersunk screws are widely used in:
- Electronics: Transparent housings and device covers
- Automotive: Interior trims and lighting assemblies
- Lighting systems: LED fixtures and lamp enclosures
- Industrial equipment: Lightweight structural assemblies
- Medical devices: Transparent or clean equipment housings
- Consumer electronics: Display and protective panels
- Smart devices: Precision enclosure fastening systems
Their combination of strength and transparency makes them ideal for modern industrial design.
Why Choose This Product
- High impact resistance and toughness
- Optional transparent appearance for aesthetic applications
- Flush countersunk head for smooth installation
- Lightweight engineering plastic structure
- Non-conductive and safe for electronics
- Better performance than PP and PVC materials
- Suitable for precision OEM applications
- Custom sizes and colors available
- Stable performance in industrial environments
The PC slotted countersunk screw provides a strong balance of mechanical performance and visual design.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and engineering plastic components for global OEM applications.
- Advanced injection molding and tooling capability
- Stable mass production for industrial supply chains
- Custom engineering support for plastic fasteners
- Strict quality inspection and testing systems
- Global export experience in fastener manufacturing
- Technical consultation for material selection
Flybear delivers reliable fastening solutions for electronics, automotive, and industrial plastic applications worldwide.
Quality Inspection and Control
Strict quality control ensures stable product performance:
- Raw material resin testing
- Dimensional accuracy inspection
- Mechanical strength testing
- Impact resistance validation
- Transparency/optical inspection (if required)
- Thread fit testing
- Surface quality inspection
- Packaging verification
All processes follow ISO-based quality management standards.
Selection Guide
When selecting PC slotted countersunk screws, consider:
- Load and stress requirements
- Temperature environment
- Transparency needs
- Chemical exposure conditions
- Electrical insulation requirements
- Size and thread specifications
Proper selection ensures long-term reliability and performance.
FAQ
1. What is a PC slotted countersunk screw used for?
It is used for flush installation in transparent or high-strength plastic assemblies.
2. Is PC stronger than PVC or PP?
Yes, PC has much higher impact resistance and strength.
3. Can it be transparent?
Yes, polycarbonate can be produced in transparent grades.
4. Is it suitable for electronics?
Yes, it is non-conductive and widely used in electronic housings.
5. Can custom sizes be made?
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.




