Threaded tube inserts provide a strong, secure solution for adding internal threads to open-ended steel or aluminium tubes. Ideal for use with levelling feet, glides, or adjustable components, these inserts simply push into square or round tube ends and feature a ribbed design for a firm grip and a steel or brass thread for added durability. They offer a clean, professional finish while preventing dust and debris from entering the tube. Available in a wide range of sizes to suit various tube dimensions and thread types, they’re a practical choice for furniture, frames, racking, and equipment supports.