PEEK Countersunk Hexagon Socket Screws - DIN 7991

Material: PEEK

Measurement System: Metric

Drive Type: Hex Socket

Colour: Natural/Beige

Maximum Temperature: 260°C/500°F

Flammability: UL94 V-0

PEEK Countersunk Hexagon Socket Screws - DIN 7991 conform to the following Standards/Norms:

DIN 7991

High-Performance PEEK Countersunk Hex Socket Screws stand out as a versatile and reliable choice. PEEK, short for polyetheretherketone, is a high-performance thermoplastic polymer renowned for its exceptional mechanical properties, making it an ideal material for manufacturing countersunk screws. 

Countersunk screws, with their conical shape and flush finish, serve a critical role in joining components seamlessly while reducing the risk of snags or accidents. PEEK, as a material, offers numerous advantages over alternatives such as steel, brass, or aluminium. One of the foremost reasons for choosing PEEK countersunk screws is their exceptional chemical resistance. PEEK is impervious to a wide array of chemicals, including acids, bases, and organic solvents. This resistance ensures that these screws remain robust and corrosion-free, even in the most demanding environments, making them indispensable in industries such as chemical processing, pharmaceuticals, and oil and gas.

Furthermore, PEEK countersunk screws boast remarkable mechanical properties. They exhibit excellent strength, stiffness, and creep resistance, comparable to certain metals like stainless steel. This high mechanical performance allows PEEK countersunk screws to endure heavy loads and maintain their integrity over extended periods. Consequently, they are often favoured in aerospace, automotive, and marine applications where the screws must withstand extreme forces and maintain structural integrity.

Temperature resistance is another prominent advantage of PEEK countersunk screws. These screws can endure temperatures ranging from -60°C to 260°C without experiencing any significant degradation in their mechanical properties. This wide operational temperature range renders them suitable for use in applications where temperature fluctuations are commonplace, such as in the automotive industry or in scientific instrumentation.

PEEK countersunk screws are also prized for their electrical insulating properties. Unlike metals, which conduct electricity, PEEK is an excellent electrical insulator. This property makes PEEK screws indispensable in electronics and telecommunications, where maintaining electrical isolation is critical to prevent short circuits and interference.

In addition to their material properties, the design of PEEK countersunk screws further enhances their utility. The hex socket head design provides a secure and efficient means of fastening, reducing the likelihood of slippage during installation or removal. The countersunk shape allows for a flush finish, which is aesthetically pleasing and reduces the risk of tripping hazards or snagged clothing in various applications.

Another compelling reason to opt for PEEK countersunk screws is their weight advantage. PEEK is significantly lighter than metals like steel or aluminium, making it an attractive choice in applications where weight reduction is a priority, such as aerospace and automotive engineering. The lower weight of PEEK screws can contribute to fuel efficiency and improved performance in these industries.

The PEEK data sheet is available as a PDF to download below.

Return components within 90 days for a full refund. Please see returns terms and conditions for further information.