8 Pieces Round Tube Inserts With M6 Thread For 19mm Diameter Round Tubes 0.75 Inch Outer Diameter Black Plastic Plug Caster Insert Chair End Caps And Furniture Leg Plug For DIY Furniture Repair And Home Improvement

M6 Threaded Round Tube Inserts for 19mm OD Furniture Legs
✔️ 19 mm dia, 6 mm thick, inner 16 mm, 22 mm tall, 8 pcs, M6x1

These black plastic inserts plug into 19 mm round tubes and accept M6 x 1.0 threads, letting you add casters or adjustable feet to furniture legs. Pack includes 8 threaded inserts for chairs, desks, racks, TV stands, and other round-tube furniture.

✅ Diameter 19 mm (0.75 in); Inner height 16 mm (0.63 in); Overall height 22 mm (0.87 in)
✅ Thread size M6 x 1.0; Fits 19 mm OD tubes
✅ Package includes 8 threaded inserts; Black plastic body
✅ Works with casters or adjustable feet for stable, floor-friendly support

💡 What is a threaded tube insert used for in furniture applications?

This handy piece lets you attach wheels or feet to round-tube furniture and improve mobility and stability.

• handy for attaching casters to 19 mm round tubes with M6 threads
• provides stable floor contact when using adjustable feet
• fits 19 mm OD tubes with M6 x 1.0 hardware
• easy tapping into ribbed interiors during installation