Thread Inserts and Repair

Threaded Inserts for Plastic

Threaded inserts for plastic are metallic anchors designed to mitigate the cold flow and creep characteristics of thermoplastic and thermoset polymers under sustained fastener loads. Featuring external knurls, barbs, or vanes, they maximize surface area engagement to provide exceptional torque-out and pull-out resistance. Installation methods include ultrasonic welding, thermal pressing, or in-mold placement, allowing the polymer to flow into the insert's retention features. These inserts are critical in automotive interiors, consumer electronics, and medical devices where repeated assembly is required.