PPS Socket Head Cap Screw
PPS socket head cap screw is a high-performance engineering plastic fastener designed for industrial applications requiring excellent heat resistance, chemical stability, and electrical insulation. The PPS socket head cap screw is manufactured from polyphenylene sulfide (PPS), a high-performance thermoplastic widely used in automotive systems, electronics, and industrial equipment.
The PPS socket head cap screw features a cylindrical head with an internal hex (Allen) drive, enabling high torque installation in compact spaces while maintaining stable fastening performance. It is widely used in environments where metal fasteners may cause corrosion, conductivity, or weight-related issues.
Product Overview
The PPS socket head cap screw is engineered for precision fastening in demanding industrial environments where both mechanical stability and material resistance are required. Its cylindrical head allows higher torque application compared to slotted or Phillips drives, making it suitable for structural and technical assemblies.
This PPS socket head cap screw performs reliably under continuous heat exposure and chemically aggressive conditions. Unlike metal screws, it does not rust, conduct electricity, or generate galvanic corrosion, ensuring long-term stability in sensitive systems.
As a specialized industrial fastener, it is widely used in OEM manufacturing where lightweight structure, insulation, and cost efficiency are essential.
Product Specifications
| Item | Description |
|---|---|
| Product Name | PPS Socket Head Cap Screw |
| Material | PPS (Polyphenylene Sulfide) |
| Head Type | Cylindrical Head |
| Drive Type | Internal Hex (Allen) |
| Thread Type | Metric / UNC / Custom |
| Diameter Range | M2–M12 |
| Length Range | 4mm–100mm |
| Color | Black / Natural |
| Density | ~1.35 g/cm³ |
| Operating Temperature | -40°C to 200°C |
| Electrical Properties | Good insulation |
| Chemical Resistance | Excellent resistance to fuels, oils, acids |
| Packaging | Anti-static bag / carton / OEM packaging |
| Customization | Size, drive type, color available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | ~80–110 MPa |
| Flexural Strength | High rigidity performance |
| Hardness | Shore D 85–90 |
| Continuous Service Temperature | Up to 200°C |
| Melting Point | ~280–285°C |
| Dielectric Strength | Good electrical insulation |
| Water Absorption | Very low |
| Chemical Resistance | Excellent resistance to fuels, solvents, acids |
Materials and Manufacturing Process
The PPS socket head cap screw is manufactured using precision polymer processing techniques to ensure stable performance and dimensional accuracy.
- Raw material selection: High-quality PPS resin (reinforced or unreinforced)
- Injection molding / CNC machining: Formation of cylindrical head geometry
- Thread forming: Precision molded or machined threads
- Internal hex machining: High-precision Allen drive formation
- Annealing treatment: Improves dimensional stability and reduces internal stress
- Surface finishing: Optional polishing for precision applications
- Inspection: Dimensional and mechanical testing
- Cleaning: Contamination-free processing for industrial use
- Packaging: Anti-static and moisture-protected packaging
Each PPS socket head cap screw is produced under strict quality control standards to ensure consistent industrial reliability.
Applications of the Product
The PPS socket head cap screw is widely used across multiple industrial sectors:
- Automotive industry: Engine compartments and electronic modules
- Electrical systems: High-temperature insulating assemblies
- Electronics industry: PCB and enclosure fastening systems
- Industrial equipment: Chemical-resistant machinery assemblies
- Aerospace applications: Lightweight non-metallic structures
- Pump and valve systems: Corrosion-resistant connections
- Household appliances: Heat-resistant internal assemblies
- Precision instruments: Mechanical and structural assemblies
Its internal hex design makes it suitable for high-torque applications in compact spaces.
Why Choose This Product
- Excellent heat resistance up to 200°C
- Superior chemical resistance to fuels and solvents
- High torque capacity with internal hex drive
- High rigidity and dimensional stability
- Excellent electrical insulation performance
- Non-corrosive and non-metallic material
- Lightweight structure reduces system weight
- Suitable for OEM mass production
- Stable performance in harsh environments
The PPS socket head cap screw provides a reliable balance of performance, durability, and manufacturing efficiency.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and engineering plastic components.
- Advanced precision molding and machining capability
- OEM/ODM customization support
- Stable mass production for global supply
- Strict quality inspection system
- Global export experience
- Engineering application support
Flybear supports OEM manufacturers, distributors, and industrial engineering companies with reliable fastening solutions.
Quality Inspection and Control
Quality assurance is strictly implemented throughout production:
- Raw material performance testing
- Dimensional accuracy inspection
- Tensile and flexural strength testing
- Thermal resistance verification
- Chemical resistance evaluation
- Thread and drive inspection
- Surface quality control
- Packaging integrity inspection
All processes follow ISO-based quality management standards to ensure consistent performance.
Selection Guide
When selecting a PPS socket head cap screw, consider:
- Operating temperature requirements
- Chemical exposure conditions
- Required torque and load capacity
- Electrical insulation needs
- Thread size and length
- Installation environment
Proper selection ensures long-term stability and optimal performance.
FAQ
1. What is PPS socket head cap screw used for?
It is used in precision industrial assemblies requiring heat resistance, insulation, and corrosion resistance.
2. Can PPS replace metal socket screws?
Yes, in applications requiring non-conductive and lightweight fasteners.
3. What is the temperature resistance of PPS?
Typically up to 200°C for continuous use.
4. Is PPS resistant to chemicals?
Yes, PPS has excellent resistance to fuels, oils, and acids.
5. Can custom specifications 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.
