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There’s quality, and then there’s KATO® Quality.

Manufactured with an exceedingly smooth finish that effectively eliminates friction-induced thread erosion. KATO® wire thread inserts are built to stand the test of time, and exceed the requirements of defence, aerospace and commercial applications.

No one makes stronger joints

Lightweight joints have never been stronger. KATO® helically-coiled fastening devices create permanent, wear-resistant screw threads that exceed the strength of the parent material.

Smooth, rugged and robust

Finished exceedingly smoothly to eliminate friction-induced thread erosion. At just 32 microinches, KATO® fastening devices meet and even exceed the requirements of applicable military, aerospace and commercial standards.

Know-how that knows how

Decades of continuous improvement make KATO® the ultimate solution for high-strength, lightweight joints. Made by Advanex, the leaders in precision engineering, no one is better placed to produce products to KATO® standards.

Leaders in precision engineering

Manufactured by Advanex, the world’s leaders in precision engineering. Manufactured with a Japanese heritage, coupled with advanced machinery that assures quality in every single insert.

Inspected by hand

Yes. Every. Single. Insert. Our dedication to quality is recognised by every major industry quality management standard. See our certificates


Product in hand faster than anyone. Helping you keep your manufacturing operation lean, efficient and even more productive with our tooling.

Process, people and precision.

What goes into a wire thread insert?

  • It all starts with materials

    Using our next-generation wire rolling machines, processing 120 metres of material per minute, KATO® wire is formed into a precise diamond profile.

  • Notched with a punch, then crushed

    For KATO Tangless® inserts, the diamond-shaped wire is fed into purpose-built presses that punch and crush the wire, for faster installation. The crush forces are based on tight tolerances, sizes and specifications.

  • Wound to a coil

    Straight sections of wire enters our state-of-the-art multi-forming machines that create the familiar KATO® wire thread insert profile and form our precision installation features that allow optimal and efficient installation of our inserts.

  • Deburred and inspected

    Tangless® inserts are spun in a purpose-built bowl containing abrasive media to create a clean and super smooth finish. Our inserts undergo a thorough inspection, in accordance with the most demanding industry specs and standards.

  • Packaged, audited and documented

    KATO® Tanged and Tangless® wire thread inserts can be packaged in bulk or in strip feed reels. Each shipment is accompanied by certification, providing full traceability and ensuring compliance to all relevant standards.

  • Installation solutions designed around you

    Our customers use our range of tooling to install inserts quickly and efficiently, providing a trouble-free threaded solution.

Manufactured by

The original innovators behind KATO®. In manufacture since 1987. Original IP developed in 1985.

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Got a question? Want to discuss your requirements? Get in touch with our expert team.