PEEK Screws
PEEK (Polyether Ether Ketone) screws are high-performance fasteners manufactured from virgin PEEK material. They combine exceptional thermal stability, chemical resistance, high mechanical strength, and low weight, making them the ideal choice for demanding applications across semiconductor, medical, chemical, aerospace, automotive, and many other industries.
Product Range
PEEK Socket Head Cap Screws – Cylindrical head with internal hex drive, delivering a clean, compact fastening solution. Perfect for tight spaces and applications requiring a neat appearance.
PEEK Cross Pan Head Screws – Universal cross-slot design for easy installation with a Phillips screwdriver. Excellent corrosion resistance and electrical insulation.
PEEK Cross Countersunk Screws – Flat heads that sink into the mounting surface, providing a flush finish, protecting the connected surface, and eliminating the need for extra washers.
PEEK Hex Head Screws – Hexagonal heads installable with a wrench or socket, designed to withstand high torque loads without loosening.
PEEK Hex Nuts – Hexagonal nuts engineered to pair perfectly with PEEK screws and bolts for reliable and long-lasting fastening.
Key Features
Withstands extreme environments: Usable continuously from -109°C to 260°C; resistant to steam and chemical corrosion, suitable for medical, chemical, and other harsh scenarios.
High strength and light weight: Mechanical strength close to metal; density only 1/5 that of steel, significantly reducing equipment load.
Excellent electrical insulation: Outstanding insulating properties; can replace metal screws in electronics and semiconductor applications to avoid short-circuit risks.
Low friction and wear resistance: Good self-lubrication, long-term use without sticking, reducing maintenance costs and extending equipment lifespan.
Technical Specifications
| Property | Test Standard | Condition | Unit | Result |
| Color | — | — | — | Beige |
| Density | ISO 1183 | Crystalline | g/cm³ | 1.30 |
| Tensile Strength | ISO 527 | 23°C | MPa | 98 |
| Elongation | ISO 527 | 23°C | % | 40 |
| Flexural Strength | ISO 178 | 23°C | MPa | No break |
| Flexural Modulus | ISO 178 | 23°C | MPa | — |
| Notched Impact Strength | ISO 180/A | Notched | kJ/m² | 12 |
| Shore Hardness | ISO 868 | 23°C | D | 85 |
Maximum Torque Data
| Screw Size | Max Torque (N·m) |
| M4 | 1.15 |
| M5 | 1.8 |
| M6 | 2.2 |
| M8 | 4.9 |
| M10 | 11.1 |
| M12 | 17.9 |
| M16 | 38 |
Applications
PEEK screws are widely used in various demanding industries, including:
Aerospace
Automotive
Electronics and Semiconductors
Chemical Processing Equipment
Oil and Gas Exploration
Nuclear Power
Food Processing Equipment
Pharmaceutical Equipment
Marine Industry
New Energy and Photovoltaic Equipment
Precision Instruments
Rail Transit
Mold Manufacturing
Laser Equipment
Environmental Protection Equipment
Textile Machinery
Papermaking Industry
Military Industry
Scientific Research and Laboratory Equipment
How to Choose the Right PEEK Screw
| Head Type | Key Characteristics | Best For |
| Socket Head Cap | Internal hex drive; cylindrical head; clean and compact | Tight spaces; neat appearance; high torque with hex key |
| Cross Pan Head | Universal Phillips cross slot | General-purpose use; easy installation with standard screwdrivers |
| Cross Countersunk | Flat head that sinks into the mounting surface | Flush surfaces; protecting the connected surface; aesthetics |
| Hex Head | External hexagonal head | High-torque applications; quick wrench or socket installation |
| Hex Nut | Pairs with screws/bolts | Reliable fastening when combined with PEEK screws or bolts |
