Plastic Tube Threaded Nut Inserts or Threaded Plastic Nut Inserts for Tube, Nylon Nut Threaded Tube Inserts, Parallel Threaded Tube Plugs, Knock In Plastic Inserts, Inserts for Parallel Tube and Inserts with Nuts. Designed to double up as an End Cap but also to provide you with a Threaded Recipticle to take a Foot or Castor. The idea behind this range is that it saves the operation of Punching a Hole, Tapping in a 'T' Nut and knocking in a standard End Bung.
