Connector for profile 40x40x2mm, Satin

The Strofix connector is an AISI 304 stainless-steel inline coupler for 40 × 40 mm square railing tubes. The connector has a 4 mm height (H) and joins two square tube sections in a straight line. Supplied in satin finish. Attached using adhesive (elements for pasting included).

The connector is an internal sleeve that bridges the joint between two 40 × 40 mm square tube ends meeting in a straight line. The ultra-thin 4 mm profile means the coupler is nearly invisible once installed – the external surface shows only a minimal seam between the two tube sections. This is used wherever a continuous straight run of square tube railing or handrail exceeds the available tube length and must be extended with a joint. The connector slides into the bore of both tube ends and is secured with adhesive, creating a rigid, straight connection. AISI 304 stainless steel is suitable for standard interior and exterior installations.

The satin finish provides a uniform appearance that matches other Strofix satin-finished railing components.

Use cases:

• Joining two 40 × 40 mm square tube sections in a straight line
• Extending handrail or top rail runs beyond a single tube length
• Creating a continuous straight square tube railing without visible joints
• Splicing cut tube sections to reach a precise overall length
• Any straight inline connection of 40 × 40 mm square tubes

FAQ:

What tube does this connector fit?

The connector fits the 40 × 40 mm square tube – the standard square railing tube in the Strofix product range.

What is the connector height?

The connector has a 4 mm height (H = 4 mm). This ultra-thin profile makes the coupler nearly invisible once installed between two tube sections.

Is this a straight or angled connector?

This is a straight inline connector – it joins two tubes in a continuous straight line at 180°. For angled connections, use the flush elbow (90°) or the adjustable flush elbow (90°–180°) for the same 40 × 40 mm square tube.

How is the connector attached?

The connector slides into both tube ends and is secured using adhesive (pasting). The Strofix anaerobic glue (50 mL) from the Chemistry, Adhesives subcategory is the recommended adhesive.

How does this differ from the elbows?

The elbows change the direction of the tube run (90° fixed, or 90°–180° adjustable). This connector maintains the same straight-line direction – it is a splice/coupler, not a direction change.

What steel grade and finish is used?

The fitting is manufactured from AISI 304 stainless steel with a satin finish. AISI 304 is suitable for standard interior and exterior installations.

About Strofix pipe connectors

Strofix pipe connectors join Ø42.4 mm railing tube, 40x40 mm square profile and Ø10/Ø12 mm solid rod. The range covers L-type elbows, fixed and adjustable, I-type straight connectors, and T, Y and X connectors, in AISI 304 stainless steel with AISI 316 on selected fittings.

Compare all types in pipe connectors and elbows.