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SKU GK-0404016-4R

End cap for weld 40x40x4mm, hole ø16mm, RAW

Brand Strofix
€1.24 Tax excluded
€1.50 Tax included
Tax included
Quantity
Steel grade AISI304
Surface finish Raw surface
Mounting surface type Flat
Tube size 40x40mm
End cap installation Weld
End cap surface type Flat
End cap surface thickness 4mm

The Strofix end cap for weld 40×40×4mm, hole ø16mm, RAW is an AISI 304 stainless-steel closure plate for the end of a 40 × 40 mm square railing tube. The 4 mm plate has a central Ø16 mm hole and is welded over the tube end, sealing the open section while allowing a bolt, rod, or cable to pass through the hole. Supplied with a raw (unfinished) surface.

This weld-on end cap closes the open end of a 40 × 40 mm square tube and is fixed by welding rather than press-fitting or bonding, giving a permanent, flush closure for fabricated steel assemblies. The central Ø16 mm hole is the largest of the three hole options, accepting a larger through-bolt, threaded rod, or cable termination. The raw surface is intended to be ground and finished or coated on site after welding.

Use cases:

  • Welded closure of a 40 × 40 mm square railing tube end
  • Permanent flush end closure in fabricated steel assemblies
  • Tube-end cap with a Ø16 mm hole for a large through-bolt, rod, or cable
  • Raw-surface cap for grinding and finishing on site after welding
  • Stainless-steel weld-on end cap for square railing tube

FAQ

How is this end cap fixed?

By welding. It is welded over the end of a 40 × 40 mm square tube, giving a permanent closure – unlike the press-fit or threaded caps, which insert into the tube.

What is the Ø16 mm hole for?

It allows a larger bolt, threaded rod, or cable to pass through the cap. It is the largest of the three hole options (Ø8, Ø12, Ø16).

What tube does it fit?

A 40 × 40 mm square tube.

Why is the surface raw?

The raw finish is intended to be ground and finished or coated on site after welding, to match the surrounding metalwork.

What steel grade is used?

AISI 304 stainless steel, raw surface.

About End Caps

An end cap closes the open end of a railing tube, post or crossbar rod, keeping water and dirt out and giving the end a clean, finished look.

Strofix supplies 31 end caps in three families: for Ø42.4 mm tube (flat, convex, ellipsoid, 90° elbow and weld-in caps), for 40 × 40 mm profile (flat and weld-in caps) and for Ø10 and Ø12 mm crossbar rods (15–30 mm high, in flat, ball and droplet shapes).

Most are AISI 304 satin; polished versions, raw weld-in caps and AISI 316 on selected caps complete the range. The correct end cap depends on the profile it closes, the shape and whether it is fitted or welded.

Strofix quality

Strofix designs and supplies stainless-steel fastening systems for architectural glass, including glass adaptors, railing components, handrails, and structural fixings. We also serve architects, installers, and building contractors on residential and commercial projects.

The products we sell are designed by us, and manufactured under strict quality guidelines so that we can be sure our customers are getting exactly what they ordered.

All of our products meet EU quality standards. Our shipping partners provide convenient delivery times. For more on our return & warranty policy read here. Secure payments are provided by MakeCommerce.

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