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KATO® Tanged Inserts

  • The original wire thread insert. Originally created in Japan, and used throughout the world in applications as diverse as automotive and aerospace, to consumer electronics and robotics.
  • A history of excellence, a product of innovation. We have continuously improved, refined and iterated upon since the 1980s. KATO inserts are created using new wire-cutting techniques, new materials and comprehensively coated with innovative surface finishes.
  • Made in every conceivable size, unified and metric, in a plethora of materials.

KATO® Tangless® Inserts

  • Tangless® wire thread inserts are slowly becoming the first-choice of wire thread insert across every high-volume manufacturing industry.
  • Without a tang, these inserts eliminate all risk of foreign object debris (FOD), but also make them re-usable and more sustainable.
  • Widely available, in unified and metric sizing, in the same variety of materials and surface finishes as KATO® tanged inserts.

KATO® Tooling

  • Our dedicated KATO® tooling speeds up installation times, for everything from high-volume applications to one-off disassembly.
  • Tooling available for all manufacturing setups and for assembly of all types of equipment; from manual hand-tools to torque-arm and automatic power installation tools.
  • Built to perform. We provide expert training and continuous support for manufacturers of all kinds.

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Why choose KATO®?


Crafted by purpose-built machinery, inspected individually by our experts. KATO® products are made in medical-grade production facilities, to automotive, aerospace and internationally recognised quality management standards.


Our operating principles are guided around speed, ensuring manufacturers have product-in-hand just in time. The unique product design that KATO® users have come to know enables quick installation, all while increasing joint strength.


KATO® wire thread inserts are the most innovative on the market. Through decades of continuous improvement and product development, KATO® Tanged and Tangless® inserts enable lighter, stronger designs that last longer.


KATO® offers exceptional value to manufacturers. With competitive pricing, short lead times, and a full range of metric and unified sized solutions, we’re able to provide market-leading value to customers.

KATO® Product Brochure

2024 Edition available to download.

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