Threaded Insert

A threaded insert is a fastener that provides permanent threads in a material that is too thin or soft to hold a screw. It is often used in plastics, wood, or sheet metal.

A threaded insert fits into a drilled or moulded hole in soft material to provide a strong metal thread. It takes a matching screw or bolt of the same thread. The insert often needs a setting tool to press it into place.

This kind of insert is often made in brass for good corrosion resistance and machinability. Brass is suitable for indoor use and some outdoor applications.

This is a general guide to checking this kind of part. It says nothing about any supplier's parts.

Ask for a certificate of conformance to confirm the material and thread dimensions. On receipt, check the insert for correct thread and dimensions.