M5X20 Cylindrical head slotted PEEK screw

At Kriloha Ltd., we understand that standard metallic fasteners become liabilities in extreme chemical, thermal, or high-voltage environments. Our M5x20 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 PEEK fastener series is based on Material-Purity and Load-Distribution. By utilizing a cylindrical head profile, we maximize the bearing surface against the mating part, which is critical when clamping delicate plastics or thin-gauge metals. At Kriloha, we verify that our traditional slotted drives are precision-molded and machined to ensure a deep, secure fit for the screwdriver blade, preventing cam-out and protecting the polymer from shearing during installation. This creates 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 M5 thread provides a flawless, anti-galling fit, delivering reliable, creep-resistant performance required for ultra-high vacuum (UHV) and clean-room applications. Whether you are assembling a high-Tesla MRI machine 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 where absolute chemical purity is mandatory to prevent sample contamination.
Medical & Diagnostic Imaging: Ideal for assembling MRI machines and reusable surgical tools where non-magnetic properties and repeated sterilization (autoclaving) are required.
Semiconductor Manufacturing: Utilized in wafer-handling equipment and Ultra-High Vacuum (UHV) environments due to PEEK’s exceptionally low outgassing properties.
High-Voltage Electronics: Providing safe, non-conductive mechanical fastening in electrical panels, transformers, and battery enclosures where metal screws pose an arcing risk.
Aerospace & Aviation: Used in weight-critical avionic enclosures and drone manufacturing to shed mass without sacrificing structural strength.

Frequently Asked Questions

What do the dimensions “M5x20” specifically mean?

“M5” denotes a standard metric thread diameter of 5 millimeters, and “20” signifies that the length of the threaded shank—measured from directly under the head to the tip of the screw—is 20 millimeters.

What is the advantage of a Cylindrical Head over a Hex Head?

A cylindrical head (often similar to a cheese or pan head) provides a smooth, snag-free outer profile and a large, flat bearing surface. It is highly suitable for applications where the screw head needs to sit inside a counterbored hole, completely flush with the surface of the casing.

Is the slotted drive prone to stripping in PEEK material?

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 the recommended torque limits.

Can this screw withstand repeated sterilization?

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.

Do these screws outgas in a vacuum?

No. PEEK has exceptionally low outgassing properties, making these fasteners highly suitable for Ultra-High Vacuum (UHV) environments commonly found in semiconductor and aerospace engineering.