Square Plastic Threaded Tube Inserts or Threaded Plastic Square Tube Inserts, Threaded Plastic Tube Inserts for Square Tube, Square Threaded Plastic Plugs, Square Threaded Bungs, Square Threaded Knock In's, Square Threaded Plastic End Caps, Box Section Tapped Tube Ends & Square Threaded Feet. We offer a huge range of Tilt Feet, Rigid Feet or Castors but if you want to avoid the look of a Steel Threaded Foot then you could also use one of our
Table Leg Adjusters.
All our Tube Fittings are listed exactly as you would buy Tube, so it's Outside Dimensions x Wall Thickness or Guage Size.