These key-locking threaded inserts provide strong, permanent steel threads in a weaker parent material ferrous, non-ferrous, or non-metallic.

A solid version of threaded inserts is also available to use as a handy plug to relocate holes drilled or tapped in the wrong location.

The most common use for the inserts is to reinforce threads in new Workholders or to repair threads in existing Workholders.

Threaded inserts provide a way to strengthen threaded holes in new Workholders where repeated use may cause excessive wear, such as with aluminum or other soft fixture plates.

With existing jigs and fixtures, threaded inserts are a quick way to fix stripped, damaged, or worn threads.

Two primary forms of threaded inserts are Keenserts and self-tapping threaded inserts.

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Keensert Stud