PVC Hex Head Screw
PVC hex head screw is a lightweight corrosion-resistant plastic fastener made from polyvinyl chloride (PVC), designed for chemical-resistant, insulating, and cost-effective industrial fastening applications. The PVC hex head screw features an external hex head structure, allowing easy installation with standard spanners or sockets while providing stable torque transmission in non-metallic assembly systems.
The PVC hex head screw is widely used in water treatment systems, chemical processing equipment, electrical insulation structures, and lightweight industrial assemblies where metal fasteners may corrode or conduct electricity.

Product Overview
The PVC hex head screw is engineered for environments requiring strong chemical resistance and electrical insulation. Its external hex head design ensures easy tightening and loosening using standard tools, making it suitable for both installation and maintenance.
This PVC hex head screw is commonly used in piping systems, filtration equipment, laboratory devices, and industrial plastic assemblies where durability and corrosion resistance are critical. PVC material provides stable performance in acidic and alkaline environments.
As a reliable industrial plastic fastener, it is an economical solution for large-scale corrosion-resistant applications.
Product Specifications
| Item | Description |
|---|---|
| Product Name | PVC Hex Head Screw |
| Material | Polyvinyl Chloride (PVC) |
| Head Type | Hex Head |
| Drive Type | External Hex |
| Thread Type | Metric Machine Thread / Self-Tapping (optional) |
| Diameter Range | M4–M20 |
| Length Range | 10mm–120mm |
| Color | White / Gray / Custom |
| Density | ~1.38 g/cm³ |
| Electrical Conductivity | Non-conductive |
| Packaging | Bag / carton / OEM packaging |
| Customization | Size, color, thread type available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 40–55 MPa |
| Flexural Strength | Moderate |
| Heat Resistance | 60–70°C continuous use |
| Chemical Resistance | Excellent (acids, alkalis, salts) |
| Electrical Insulation | Excellent |
| Water Absorption | Very low |
| UV Resistance | Moderate (additive dependent) |
| Manufacturing Standard | Industrial OEM specification |
Materials and Manufacturing Process
The PVC hex head screw is manufactured using precision molding and controlled processing techniques to ensure stability and dimensional accuracy.
- Raw material selection: High-quality PVC resin
- Compounding: Stabilizers and additives for performance enhancement
- Injection molding: Formation of hex head structure
- Thread forming: Molded or post-processed threading
- Cooling and stabilization: Ensures dimensional accuracy
- Trimming: Removal of flash and excess material
- Inspection: Dimensional and visual quality control
- Packaging: Clean and protective industrial packaging
Each PVC hex head screw is produced under strict process control to ensure consistent performance.
Applications of the Product
PVC hex head screws are widely used in:
- Water treatment systems: Pipeline and filtration equipment
- Chemical industry: Acid and alkali-resistant assemblies
- Electrical systems: Insulation fastening structures
- Laboratory equipment: Corrosion-resistant fixtures
- Marine applications: Moisture and salt-resistant systems
- Industrial piping: Lightweight structural connections
- Environmental equipment: Chemical processing devices
Their corrosion-free nature makes them ideal for aggressive chemical environments.
Why Choose This Product
- Excellent resistance to acids, alkalis, and salts
- Lightweight and cost-effective material
- Non-conductive for electrical safety
- Easy installation with standard hex tools
- Suitable for corrosive and humid environments
- Stable performance in chemical systems
- Available in multiple sizes and colors
- OEM customization support
- Ideal for large-scale industrial use
The PVC hex head screw provides a reliable and economical fastening solution for corrosion-resistant engineering systems.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and engineering plastic components for global OEM markets.
- Advanced molding and production capabilities
- Stable mass production for industrial supply chains
- Custom engineering support for plastic fasteners
- Strict quality inspection and control systems
- Global export experience in fastener manufacturing
- Technical consultation for application optimization
Flybear delivers reliable fastening solutions for chemical, water treatment, and industrial plastic applications worldwide.
Quality Inspection and Control
Strict quality control ensures stable product performance:
- Raw material PVC resin testing
- Dimensional accuracy inspection
- Thread fit testing
- Chemical resistance validation
- Heat resistance testing
- UV resistance sampling
- Surface quality inspection
- Packaging verification
All processes follow ISO-based quality management standards.
Selection Guide
When selecting PVC hex head screws, consider:
- Chemical exposure level
- Temperature limitations
- Load and torque requirements
- Thread compatibility
- UV exposure conditions
- Installation environment
Proper selection ensures long-term reliability and safe operation.
FAQ
1. What is a PVC hex head screw used for?
It is used for corrosion-resistant fastening in chemical and water treatment systems.
2. Is PVC strong enough for industrial use?
Yes, for light to medium-load applications in corrosive environments.
3. Can it resist chemicals?
Yes, PVC has excellent resistance to acids and alkalis.
4. Can it be used outdoors?
Yes, but long-term UV exposure should be considered.
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.



