Closed cap nut flat head hex

Furniture Cap Nut with Inner Hexagon – Closed Sleeve, Flat Head for Decorative Finish

What is this cap nut?

The furniture cap nut with inner hexagon features an internal thread (M6 to M10) and a flat head, delivering a refined, decorative finish. Thanks to its closed-sleeve design and inner hexagon drive, this cap nut stands out in both aesthetics and functionality.

Description

Key Specifications

Cold-forged design with subtly rounded shapes

The cap nut is cold-formed, giving it slight rounded edges for a refined appearance and easy installation.

Material & coating options

Base material: unhardened steel, available in several coatings (white zinc-plate, black zinc-plate, browned, nickel-plated).
Thread sizes: M6 to M10 standard.
Ideal pairing: use with a flat-head bolt with inner hexagon drive of matching profile.

Special material variants

Besides standard steel, optionally available in solid brass or nickel-plated brass for enhanced aesthetics.
For more demanding environments, two sizes are also available in stainless steel (grade 304) for increased corrosion resistance.

Applications & Benefits

Provides a decorative finish without protruding profiles — perfect for furniture and interior fixings.
Combines aesthetics with functionality: integrated thread means no visible external nut.
Ease of installation: compatible with standard flat-head bolts with inner hexagon drive, simplifying assembly.

Why choose this cap nut?

If you value a high-quality, symmetric finish, this furniture cap nut is a smart choice.
With its variety of finishes (black, nickel, brass-look…) it adapts effortlessly to the look of your furniture or interior.
The stainless-steel variant makes it suitable for demanding contexts (exterior furniture, wet rooms, etc.).

Download PDF

rfl_ecrou_douille_tete_plate_6pans_borgnes.pdf

Frequently asked questions about Closed cap nut flat head hex

How can you mechanically connect two panels in a decorative and symmetrical way?

The best option is to use a cap nut with flat or mushroom head or even a book nut combined with a decorative screw that has the same head design, featuring either an internal hex drive or a combo-slotted drive. This way, you obtain a strong, detachable threaded connection.

Which decorative screw should I combine with these cap nuts and book nuts?

That depends on the total thickness you wish to clamp. It’s also important to check the usable internal thread length of the cap nut and book nut. Only then can you determine the correct length of the decorative screw with the same form and drive.

What materials and finishes are available for cap nuts and book nuts?

The book nuts with combo-slotted drive are available in zinc-plated and/or nickel-plated steel, while the cap nuts are available in zinc-plated 4.8 steel, black zinc-plated steel, nickel-plated steel, nickel-plated brass, brass, and some also in stainless steel.