Introducing the All New KATO App

The most powerful product search application for helical coil screw thread inserts and tools. Now available for the iPhone®, iPad® & Android devices.

KATO Fastening Systems, the original inventor and manufacturer of the bi-directional Tangless® CoilThread® insert, is introducing the next version of the most powerful product search App for helical coil screw thread inserts and tools.

More than just an update, this release is completely new. Optimized for the latest iOS, and is natively compatible for both iPhone and iPad!

With high demand from our customers, the KATO App is now available for the Android market.

Built into the KATO App is the most comprehensive database on helical coil screw thread inserts. With four search options (KATO Part Number, Style & Size, MS/MA Number and NAS/NA Number), the KATO App makes it extremely easy to locate product & technical information, and tooling options for any Tangless or tanged screw thread insert!

Four Powerful Search Options

KATO Part No.

Now search using the KATO CoilThread insert part number.

Style & Size

No part number? No problem. Search using the Style & Size option, and the app will provide the part number.

MS & MA Part No.

Search by MIL-SPEC or Metric Aerospace part numbers. (MA3329, MA3279, MS122 series, MS124 series or MS21209)

NAS & NA Part No.

Search by National Aerospace Standard part numbers. (NAS1130 or NA0276)

Tooling Information

KATO has taken the guess work out of finding the right tool for the job. The KATO App provides part numbers and ordering instructions for STI taps, STI gages, air tools, electric tools, hand tools and removal tools.

Hole Prep Information

The KATO App provides step-by-step instructions to accurately prepare an STI hole for proper insert installations.


Your feedback is important to us! Receive your complimentary gift.

Take Survey