Cylindrical head slotted PEEK screw

Cylindrical head slotted PEEK screw

Core Features

  • Cylindrical Head Profile: Engineered with straight vertical sides and a flat top, providing a substantial, flat bearing surface underneath the head to distribute clamping loads evenly without crushing or indenting softer mating materials.
  • Traditional Slotted Drive: Features a single linear slot optimized for standard flat-blade screwdrivers, allowing for rapid manual assembly, easy debris removal, and reliable access in field-maintenance environments.
  • High-Performance Virgin PEEK: Manufactured from 100% Polyether ether ketone, maintaining exceptional structural integrity and mechanical strength in continuous operating temperatures up to 250°C (482°F).
  • Absolute Chemical Inertness: Completely immune to rust, oxidation, and galvanic corrosion. It is highly resistant to a broad spectrum of harsh chemicals, including aggressive solvents, strong acids, and bases.
  • Electromagnetic & Radio Transparency: 100% non-magnetic, radiolucent, and an excellent electrical insulator, preventing short circuits and signal interference in highly sensitive analytical and medical equipment.

At Kriloha Ltd., we understand that standard metallic fasteners become severe liabilities in extreme chemical, thermal, or high-voltage environments. Our Cylindrical Head Slotted PEEK Screws are our engineered answer for “Zero-Interference” and “Thermal-Endurance” fastening. As a premier provider of advanced polymer components, Kriloha has developed a specialized line of PEEK parts that balances mechanical holding power with the absolute environmental immunity required for frontier engineering.

The engineering of our cylindrical head series is based on Material-Purity and Load-Distribution. By utilizing a flat-bottomed cylindrical head profile, we maximize the bearing surface against the mating part, which is critical when clamping delicate plastics, composites, or thin-gauge metals. At Kriloha, we verify that our traditional slotted drives are precision-molded and secondary-machined to ensure a deep, secure fit for the screwdriver blade. This prevents cam-out and protects the polymer from shearing during installation. The result is a “Failure-Resistant” fastening system that will not degrade, rust, or short-circuit your most sensitive assemblies.

Manufacturing these advanced polymer components involves strict Dimensional and Thermal Verification. We ensure that every thread pitch provides a flawless, anti-galling fit, delivering the reliable, creep-resistant performance required for heavy-duty industrial applications. Whether you are assembling a high-Tesla MRI machine, securing a counterbored electronics housing, or overhauling a chemical vapor deposition (CVD) chamber, Kriloha PEEK Screws provide the exact environmental durability your facility demands. By choosing Kriloha Ltd., you are investing in a “Future-Proof” material technology that secures your highest-value innovation.

Primary Use Cases

  • Analytical Chemistry (HPLC): Fastening components in liquid chromatography systems and fluid-handling blocks where absolute chemical purity is mandatory to prevent sample contamination.
  • Medical & Diagnostic Imaging: Ideal for assembling MRI machines, CT scanners, and reusable surgical tools where non-magnetic properties and repeated high-temperature sterilization are legally required.
  • Semiconductor Manufacturing: Utilized in wafer-handling equipment and Ultra-High Vacuum (UHV) environments due to PEEK’s exceptionally low particulate generation and outgassing properties.
  • High-Voltage Electronics: Providing safe, non-conductive mechanical fastening in electrical panels, transformers, and battery enclosures where metal screws pose a severe arcing hazard.
  • Aerospace & Avionic Enclosures: Used in weight-critical applications to shed mass from instrument panels and drone chassis without sacrificing structural holding power.

Frequently Asked Questions

  1. What is the main advantage of a Cylindrical Head over a standard Hex or Pan head?

A cylindrical head (often referred to as a cheese head) provides a smooth, snag-free outer profile with straight sides. It is highly suitable for applications where the screw head needs to be recessed completely inside a counterbored hole, sitting flush or below the surface of the casing.

  1. Is the slotted drive prone to stripping in polymer materials?

While PEEK is one of the strongest thermoplastics available, it is not steel. To prevent stripping or damaging the slot, it is critical to use a flathead screwdriver that perfectly matches the width and thickness of the slot, and to strictly adhere to recommended thermoplastic torque limits.

  1. Do these screws outgas in a vacuum?

No. PEEK has exceptionally low outgassing properties. This makes our cylindrical head fasteners highly suitable for Ultra-High Vacuum (UHV) environments commonly found in semiconductor manufacturing, laboratory research, and aerospace engineering.

  1. Can this screw withstand repeated sterilization cycles?

Yes. PEEK maintains its structural and dimensional integrity through thousands of repeated sterilization cycles, including high-temperature steam autoclaving, gamma radiation, and ethylene oxide (EtO) exposure, making it an industry standard for reusable medical devices.

  1. Are these available in both metric and imperial sizes?

Yes. Kriloha manufactures this series across a comprehensive range of standard metric (M2 through M12) and imperial thread pitches to accommodate any global engineering specification.

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