Flat round flush end cap plug for tube, sheet metal, … – Black Grey White – Multiple sizes

Extra-flat round cap: the flush finish that protects and stabilizes your round tubes

The extra-flat round tube cap is a discreet and easy-to-install accessory, essential for capping, protecting and finishing your tubes. It can also be used as a plug to close a hole/bore in a panel or sheet: perfect for hiding a drilling point while keeping a clean finish.

The extra-flat cap in summary

• Extra-flat finish: flush visual appearance, no thickness.
• Durable protection: reduces shocks, friction, dust and humidity.
• Strength: technical plastic material for intensive use.
• Quick installation: manual insertion, no glue or screws.
• Compatibility: steel, aluminium or PVC tubes.

What is it used for?

The extra-flat cap clips onto the tube end to protect, stabilize and improve the visual appearance. Its flush profile avoids any protrusion—ideal for furniture feet or tubes against a surface. Also suitable for round posts, fencing tubes and gates where it provides a clean termination.

Outdoor furniture

On outdoor furniture (shelves, frames, garden structures), the extra-flat cap protects the tube and provides a clean and elegant finish.

DIY, furniture & decoration

For a metal shelf, tubular furniture or a display stand, the extra-flat cap provides a clean termination while protecting the tube from everyday impacts.

Industrial & professional structures

Shelves, frames, carts: a reliable cap is needed to reduce wear and stabilize support. The extra-flat profile reduces friction and increases durability.

Modular setups & temporary structures

For repeated assembly/disassembly (stands, events, modular structures), the extra-flat cap is easy to install and remove without damaging the profiles.

How to install it?

• Clean the tube end (dust/grease).
• Insert manually until flush.
• No glue or screws: the fitted material ensures durable retention and easy removal.

Ajile: your expert in plastic hardware

Since 2012, Ajile has been the reference online hardware store based in Schiltigheim, Alsace. We offer quality plastic fasteners and caps with fast shipping, unit sales and multi-pack options.

We source our products directly from manufacturers in Rhône-Alpes, Île-de-France and Germany, then stock them in our Strasbourg workshop. Customers benefit from responsive service and personalized support.

Unit sales, quantity discounts and fast worldwide shipping.

Check reviews on Société des Avis Garantis (rating 4.9/5). Buy and save from your armchair… That’s Ajile!

Discover our extra-flat caps collection

Choose Ajile’s extra-flat round cap, ideal for protecting, capping and finishing your round tubes.

Our range covers all common outhers diameters (Ø10 to Ø60 mm) and ensures durable and clean protection.

For individuals, professionals or public organisations: flush caps, finishing caps, protective plugs or hole plugs.

Order on Ajile.biz: fast delivery, competitive pricing, and customer support based in Alsace.