7488-9480 is part of Avdel's structural fastening range of blind rivet nuts and inserts. It is one of the Avinox range of rivet nuts, which are designed to provide a secure and permanent fastening in thin or soft materials. This particular product consists of three parts, an inner mandrel, the nut-shell and a spring-loaded steel sleeve. The inner mandrel is inserted into the pre-drilled hole, the nut shell is placed over the mandrel and the spring loaded sleeve is tightened over the two parts, deforming the nut-shell and creating a high strength, secure joint. This product is ideal for applications where a high quality, reliable, permanent fastening is required.