Custom PA66 Nylon Hex Head Bolt
Custom PA66 nylon hex head bolt is a high-performance engineering plastic fastener designed for lightweight, corrosion-free, and electrically insulating fastening applications. The custom PA66 nylon hex head bolt is manufactured from polyamide 66 (PA66), a durable engineering thermoplastic known for its excellent mechanical strength, wear resistance, and cost-effective performance.
The custom PA66 nylon hex head bolt features an external hexagonal head structure, allowing easy installation with standard tools while maintaining stable fastening in non-metallic assembly systems. It is widely used in electronics, automotive interiors, electrical systems, and OEM equipment where metal fasteners may cause corrosion, conductivity, or weight issues.

Product Overview
The custom PA66 nylon hex head bolt is engineered for applications requiring lightweight construction and reliable insulation performance. Its hex head design ensures strong torque transmission and easy assembly in industrial production environments.
This custom PA66 nylon hex head bolt performs well in environments where corrosion resistance and electrical insulation are critical. Compared to metal bolts, it eliminates rusting issues and reduces overall system weight, making it ideal for modern lightweight engineering designs.
As a specialized industrial fastener, it is widely used in OEM manufacturing where cost efficiency, stable performance, and customization flexibility are required.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Custom PA66 Nylon Hex Head Bolt |
| Material | PA66 (Polyamide 66 / Nylon 66) |
| Head Type | External Hex Head |
| Thread Type | Metric / UNC / Custom |
| Diameter Range | M2–M12 |
| Length Range | 4mm–100mm |
| Color | Natural / Black / Custom |
| Density | ~1.14 g/cm³ |
| Operating Temperature | -40°C to 120°C |
| Electrical Properties | Excellent insulation |
| Chemical Resistance | Good resistance to oils and mild chemicals |
| Packaging | Bulk / carton / OEM packaging |
| Customization | Size, color, head type, thread available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | ~70–90 MPa |
| Flexural Strength | Good toughness and flexibility |
| Hardness | Shore D 80–85 |
| Continuous Service Temperature | Up to 120°C |
| Melting Point | ~255°C |
| Dielectric Strength | Excellent electrical insulation |
| Water Absorption | Moderate (typical for nylon) |
| Wear Resistance | Good for general industrial use |
Materials and Manufacturing Process
The custom PA66 nylon hex head bolt is manufactured using precision polymer processing technology to ensure stable performance and dimensional accuracy.
- Raw material selection: High-quality PA66 resin
- Injection molding or precision forming: Hex head and thread structure creation
- Thread forming: Molded or machined metric threads
- Annealing treatment: Improves dimensional stability and reduces stress
- Surface finishing: Optional polishing or texture control
- Inspection: Dimensional, torque, and mechanical testing
- Cleaning: Dust-free and contamination-controlled processing
- Packaging: Protective industrial packaging for shipping
Each custom PA66 nylon hex head bolt is produced under strict quality control to ensure consistent industrial performance.
Applications of the Product
The custom PA66 nylon hex head bolt is widely used across multiple industries:
- Automotive industry: Interior components and electrical assemblies
- Electronics industry: PCB mounting and enclosure fastening
- Electrical systems: Insulation and non-conductive structures
- Industrial machinery: Lightweight assembly systems
- Household appliances: Structural fastening components
- Communication equipment: Non-metallic mounting systems
- Furniture industry: Lightweight assembly hardware
- OEM manufacturing: Custom engineering plastic fasteners
Its insulation and corrosion-free properties make it ideal for modern engineering applications.
Why Choose This Product
- Lightweight design reduces total system weight
- Excellent electrical insulation performance
- Corrosion-free and rust-resistant material
- Cost-effective engineering plastic solution
- Suitable for OEM mass production
- Customizable dimensions and specifications
- Good mechanical strength for general applications
- Easy installation with standard tools
- Stable performance in non-metallic systems
The custom PA66 nylon hex head bolt provides a reliable balance of performance, cost efficiency, and design flexibility.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and engineering plastic components.
- Advanced injection molding production 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
- Mechanical strength testing
- Thermal resistance verification
- Electrical insulation testing
- Torque performance evaluation
- Surface quality control
- Packaging integrity inspection
All processes follow ISO-based quality management standards to ensure consistent performance.
Selection Guide
When selecting a custom PA66 nylon hex head bolt, consider:
- Required size and thread specification
- Load and torque requirements
- Operating temperature (up to 120°C)
- Electrical insulation needs
- Environmental humidity exposure
- Assembly structure requirements
Proper selection ensures long-term reliability and performance stability.
FAQ
1. What is PA66 nylon bolt used for?
It is used for lightweight, insulated, and corrosion-free fastening applications.
2. Can nylon bolts replace metal bolts?
Yes, in low to medium load applications requiring insulation and corrosion resistance.
3. What is the temperature limit of PA66?
Typically up to 120°C for continuous use.
4. Does PA66 absorb water?
Yes, it has moderate moisture absorption, which should be considered in design.
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.




