Round Tube Plugs — Domed Head

Finish Your Tubing — Smooth the Edges and Protect Floors from Damage

Round Internal Tube Plugs — Domed Head are designed to give open round tubing a clean, finished appearance while protecting furniture, floors, and surrounding surfaces. Exposed tube ends can scratch flooring, collect debris, and make furniture or equipment feel incomplete. Over time, bare metal edges wear quickly, while low-quality caps loosen, rattle, or crack under everyday use.

Instead of sharp edges or flat, unfinished ends, Round Internal Tube Plugs — Domed Head install securely inside the tube and finish with a smooth, domed cap. A ribbed compression-fit body grips firmly inside the tubing, while the rounded head softens contact points and improves the overall look — no tools, screws, or adhesives required.

Cheap caps fail. Loose plugs shift or fall out. And once they do, the tubing is exposed again. Even light movement can bring noise, wear, and floor damage right back.

Round Internal Tube Plugs — Domed Head provide a long-lasting solution with durable polyethylene construction and a precision-fit design that stays locked in place.

If your tube legs need a polished appearance…

If frames rattle, make noise, or feel unfinished…

If you want a plug that installs quickly and stays secure —

These rounded-head tube plugs are built to finish the job properly.

What These Tube Plugs Help You Avoid

• Rattling and vibration caused by unsealed metal tube ends.
• Floor scratches and surface marks from exposed or unfinished tubing.
• Moisture, dust, and debris entering the tube interior.
• Caps that loosen or pop out during everyday movement.
• Sharp or rough edges that look unprofessional or cause wear.

Your tubing looks finished. Your furniture stays protected. And your space feels cleaner, quieter, and more refined.

Ideal for Furniture, Fixtures & Equipment

Durable Materials That Hold Up Over Time

Sizes & Color Options

Available Sizes:
• Ø16 mm with R20 rounded head
• Ø26 mm with R40 rounded head

Fits Tube Wall Thickness:
• 1.5–2 mm

Colors:
• Black — sleek and universal
• Grey — modern and neutral

Each plug is engineered to fit cleanly and securely with no trimming, adjusting, or reshaping required.

Perfect For

✔ Chairs, stools, and benches
✔ Tables, shelving, and indoor frames
✔ Rolling racks and display carts
✔ Healthcare and institutional furniture
✔ Commercial and residential fixtures

Wherever round tubing needs a clean, rounded finish, Round Internal Tube Plugs — Domed Head deliver dependable protection and a refined appearance.

Installation Tip

For the smoothest finish, press the plug firmly into the tube and tap lightly with a rubber mallet until the rounded head sits flush with the tube opening.