PEEK Phillips Countersunk Screw

PEEK Phillips Countersunk Screw

PEEK Phillips countersunk screw is a high-performance engineering plastic fastener designed for precision assemblies requiring flush installation, electrical insulation, and excellent chemical resistance. The PEEK Phillips countersunk screw is manufactured from polyether ether ketone (PEEK), a premium thermoplastic known for outstanding mechanical stability and high-temperature performance.

The PEEK Phillips countersunk screw features a 90° flat head design with a cross recessed (Phillips) drive, allowing easy installation and a smooth surface finish after tightening. It is widely used in semiconductor equipment, medical devices, aerospace systems, and high-end electronic assemblies where metal fasteners may cause corrosion, conductivity, or weight issues.

peek phillips countersunk screw


Product Overview

The PEEK Phillips countersunk screw is engineered for applications requiring a flush surface finish and reliable fastening in chemically aggressive or electrically sensitive environments. Its countersunk head ensures the screw sits level with the surface, improving safety and aesthetic quality of the assembly.

This PEEK Phillips countersunk screw offers excellent dimensional stability and long-term performance under thermal and mechanical stress. Unlike metal screws, it does not rust, conduct electricity, or generate magnetic interference, making it ideal for advanced engineering systems.

As a specialized industrial fastener, it is widely used in OEM manufacturing where lightweight design and material reliability are essential.


Product Specifications

Item Description
Product Name PEEK Phillips Countersunk Screw
Material PEEK (Polyether Ether Ketone)
Head Type Countersunk (Flat Head 90°)
Drive Type Phillips Cross Recessed
Thread Type Metric / UNC / Custom
Diameter Range M2–M12
Length Range 4mm–80mm
Color Natural Beige / Black (optional)
Density ~1.30 g/cm³
Operating Temperature -50°C to 260°C
Electrical Properties Excellent insulation
Chemical Resistance Excellent resistance to acids, solvents, oils
Packaging Anti-static bag / carton / OEM packaging
Customization Size, drive type, color available

Technical Parameters

Parameter Value
Tensile Strength ~90–100 MPa
Flexural Strength ~140–160 MPa
Hardness Shore D 85–88
Continuous Service Temperature Up to 260°C
Melting Point ~343°C
Dielectric Strength High insulation performance
Water Absorption <0.1%
Chemical Resistance Strong resistance to acids, bases, solvents

Materials and Manufacturing Process

The PEEK Phillips countersunk screw is manufactured using precision polymer processing technology to ensure high accuracy and stable performance.

  • Raw material selection: High-purity PEEK resin
  • Injection molding / CNC machining: Formation of countersunk head geometry
  • Thread forming: Precision molded or machined threads
  • Drive formation: Phillips cross recess machining
  • Annealing treatment: Improves dimensional stability
  • Surface finishing: Optional polishing for precision applications
  • Inspection: Dimensional and mechanical performance testing
  • Cleaning: Contamination-free processing for sensitive industries
  • Packaging: Anti-static and moisture-protected packaging

Each PEEK Phillips countersunk screw is produced under strict quality control standards to ensure consistent industrial reliability.


Applications of the Product

The PEEK Phillips countersunk screw is widely used in advanced industrial sectors:

  • Semiconductor equipment: Wafer processing systems
  • Medical devices: Surgical instruments and diagnostic equipment
  • Aerospace engineering: Lightweight structural assemblies
  • Electronics industry: PCB insulation and enclosure fastening
  • Chemical industry: Corrosion-resistant equipment systems
  • Automation systems: Precision mechanical assemblies
  • Laboratory equipment: Analytical instruments
  • Marine engineering: Anti-corrosion fastening systems

Its flush design and insulating properties make it ideal for high-precision and high-reliability environments.


Why Choose This Product

  • Excellent high-temperature resistance up to 260°C
  • Superior chemical and corrosion resistance
  • Flush countersunk design for smooth surfaces
  • Lightweight structure reduces system weight
  • Outstanding electrical insulation performance
  • Non-magnetic and non-conductive material
  • Stable dimensional performance under load
  • OEM customization available
  • Ideal for precision engineering applications

The PEEK Phillips countersunk screw provides a reliable fastening solution for advanced industrial systems requiring performance and safety.


Why Choose Flybear

Flybear specializes in manufacturing high-performance industrial fasteners and advanced polymer fastening components.

  • Precision machining and molding capabilities
  • OEM/ODM customization support
  • Stable production for industrial-scale supply
  • Strict quality inspection and testing systems
  • Global export experience
  • Engineering consultation for application design

Flybear supports OEM manufacturers, distributors, and engineering companies with reliable fastening solutions.


Quality Inspection and Control

Quality assurance is strictly implemented throughout production:

  • Raw material purity 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 systems to ensure consistent performance.


Selection Guide

When selecting a PEEK Phillips countersunk screw, consider:

  • Operating temperature range
  • Chemical exposure conditions
  • Electrical insulation requirements
  • Load and torque requirements
  • Thread size and length
  • Installation environment

Proper selection ensures long-term stability and optimal performance.


FAQ

1. What is a PEEK countersunk screw used for?
It is used for flush installation in precision and high-performance industrial systems.

2. Is PEEK stronger than normal plastic?
Yes, PEEK is a high-performance engineering thermoplastic with superior strength and stability.

3. Can it replace metal screws?
Yes, especially in environments requiring insulation or corrosion resistance.

4. Does it conduct electricity?
No, PEEK is an excellent electrical insulator.

5. Can custom specifications be produced?
Yes, Flybear supports full customization of sizes and specifications.


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.

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