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Kato

KATO Fastening Systems, Inc. (KATO) was established in 1997 to serve the North American fastener market. KATO manufactures the revolutionary Tangless® CoilThread Insert, standard CoilThread (tanged) inserts, Hexatorq (constant torque precision hinges), and Inserts Collars (compression limiters).

KATO Tangless Inserts are identical, in form, fit, and function to conventional tanged inserts (CoilThread, Helicoil Inserts, Recoil Inserts). In fact, Tangless CoilThread Inserts are identical to tanged inserts in every way except for their method of installation & removal. KATO Tangless inserts even have the same procurement specification (NASM8846 for unified sizes and MA1565 for metric sizes) as tanged inserts. KATO Tangless inserts eliminate tang break-off and retrieval, are easily adjusted after installation, and offer non-destructive removal. In addition, Tangless HeliCoil Inserts and Recoil Tangless Inserts are manufactured under license from KATO!

Featured Kato Series

Tanged Helical Inserts

Manufactured for over 25 years, inserts confrom to National Bureau of Standards Handbook H-28, 100% interchangeable with Heli-Coil®, Microdot®, Recoi®l, and other major brands

Free Running - Unified

Free Running - Metric

Self-Locking - Unified

Self-Locking - Metric

Tangless Helical Inserts

Identical in form, fit, and functino to conventional tanged inserts, without the tang, no tangs to break-off, retrieve...or lose, military approval: NASM8846 and NAS1130, bi-directional installation, quick non-destructive removal