Specialinsert 307 Self-Tapping Insert, M5, Steel

Description

The Specialinsert 307 Insert is a self-threading M5 steel insert designed to form its own internal thread as it’s driven into compatible plastics, composites, and light alloys. It’s a practical way to add a durable, reusable metal thread to a material that can’t hold threads reliably on its own, without pre-tapping or a separate bushing.

Specialinsert 307 Insert Features

• Self-tapping, no pre-tapped hole required
• M5 thread size, steel construction
• .295 inch outer diameter
• Forms internal thread on installation into compatible substrates

Because the insert cuts its own thread as it seats, installation is a single driving step rather than a drill-then-tap sequence, which speeds up assembly on production runs. The steel body holds up to repeated fastening cycles better than the surrounding plastic or composite would on its own, giving the joint a durable, reusable metal thread. Follow current installation guidance for correct hole sizing, insertion torque, and substrate compatibility to get full holding strength.

Where the Specialinsert 307 Insert Gets Used

Plastic and composite assemblies that need a metal-threaded attachment point, such as enclosures, panels, and fixtures, are the typical application for this insert. It suits production environments where fasteners will be installed and removed multiple times over the life of the assembly.

Browse the full specialty fastener line at Chemical Concepts, or reference the Fastenal engineering guide on threaded insert selection for background on self-tapping insert design. Need help matching this insert to your substrate or hole spec? Call (800) 220-1966 or email [email protected] for technical support.