Whether it's restoring a stripped plug or creating a new join, secure fastening is crucial. Keep it all together with a durable thread insert from Grainger.

Oct 16, 2025 · Learn about a variety of threaded inserts for plastics designed for different installation methods given the properties of a given plastic.

Thread inserts are used to replace damaged inserts, repair threaded holes that have been stripped, or create a new join. We offer several types suited for use on metal, wood, and …

Self-locking inserts install into a mounting surface and provide a female-threaded hole for installing male-threaded fasteners. They feature external threading with a pre-applied thread …

Helical inserts install into openings in a mounting surface and provide new female threads for installing male-threaded fasteners. They use a coiled wire design that engages the mounting …

Whether it's restoring a stripped plug or creating a new join, secure fastening is crucial. Keep it all together with a durable thread insert from Grainger.

Whether it's restoring a stripped plug or creating a new join, secure fastening is crucial. Keep it all together with a durable thread insert from Grainger.

Key-locking inserts fasten into threaded holes and provide new female threads for fasteners to engage with. The insert screws into the mounting surface then the integrated keys are driven …

Locking threaded inserts, otherwise known as key-locking inserts, are cylindrically tube-shaped pieces of metal with external and internal thread. Unlike self-locking threaded inserts, which …

THREADED INSERTS FOR PLASTICS SI® brand inserts employ press-in, molded-in, or heat/ultrasonic installation methods to provide strong, reusable, permanent threads in plastic.