Tangless® Inserts & Hand Tools



Tangless® Inch & Metric Inserts



NASM8846, and were added to NASM8846, the procurement standard for helical coil inserts to give you the option to use the Tangless design on military programs. Paragraph 6.3.1 of NASM8846 states “The decision to select tanged inserts or tangless inserts shall be made by the design activity.”


Tangless® Inserts are designed to replace tanged helical coil inserts as specified in NASM122076 and NASM124651 series (standard thread) and NASM21209 (locking thread); they install in standard STI tapped holes per MS33537. Installed inserts provide a finished thread meeting the requirements of FED-STD H28/2 and accept standard bolts or screws (MIL-S-7742) or UNJ (MIL-S-8879).




Tangless® Inserts may be installed by hand or power tooling with the same mandrel assembly.




Electric Tools Air Tools

One Pawl Fits All

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Round Mandrel Assembly

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Tangless Front End Assembly

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Hex Shaft Mandrel Assembly

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Removal Tool

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Prewinder Type Hand Tool
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Tangless® is a registered trademark of Advanex Inc.