Connecting Crossbar holder - 42.4

The Strofix connecting crossbar holder (42.4) is an AISI 304 stainless-steel through-hole fitting designed for Ø42.4 mm railing post tubes. Unlike blind-hole end fittings, the connecting holder has a full through-bore that allows the Ø12 mm crossbar to pass completely through the post, joining two crossbar sections at an intermediate point. Supplied with a 22 mm body diameter, 20 mm height, satin finish, and screwing elements included.

The Ø12 mm through-bore (d = 12 mm) runs completely through the holder body, enabling the crossbar rod to continue through intermediate posts without interruption. The 22 mm body diameter (D) keeps the fitting compact on the Ø42.4 mm post tube, and the Ø6.5 mm screw hole secures the holder in position. One connecting holder is required at each intermediate post along the crossbar run; the end posts require left and right blind-hole holders instead. AISI 304 stainless steel is suitable for standard interior and exterior railing installations.

The satin finish provides a uniform appearance that matches other Strofix crossbar holders and railing components in the same finish.

Use cases:

• Intermediate post crossbar connections on balcony and terrace railings
• Through-post crossbar mounting on Ø42.4 mm railing systems
• Multi-span balustrades where crossbars run through several posts
• Staircase railing intermediate posts with horizontal bar infill
• Commercial and residential railing systems with continuous crossbar runs

FAQ:

What crossbar diameter does this holder accept?

The connecting holder has a Ø12 mm through-bore (d = 12 mm). It is designed for Ø12 mm solid or hollow crossbar rods that pass completely through the holder.

How does this differ from blind-hole bar holders?

A connecting holder has a full through-bore — the crossbar passes completely through from one side to the other. Blind-hole holders have a dead-end bore where the crossbar enters from one side only and terminates. Use connecting holders at intermediate posts and blind-hole holders at end posts.

What post tube diameter does this holder fit?

The holder is designed for Ø42.4 mm railing post tubes. This is fixed and is the standard post tube size in Strofix railing systems.

What are the body dimensions?

The holder body has a 22 mm outer diameter (D = 22 mm) and a 20 mm height (H = 20 mm). The mounting screw passes through a Ø6.5 mm hole to secure the holder to the post tube.

Are screwing elements included?

Yes. Screwing elements are included with the holder, so separate fixings do not need to be purchased for standard installation.

What steel grade and finish is used?

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

About Crossbar Holders

A crossbar holder is a stainless-steel fitting that secures a horizontal rod or bar to a railing post, glass panel or flat surface, forming the connection between the infill rod and the structure it passes through. At intermediate posts the rod runs through the holder; at end posts it terminates in a blind hole (left or right hand); and on glass panels a dedicated glass-mount holder clamps the rod to the panel face.

Strofix supplies 12 crossbar holder products in several configurations: through-hole holders for Ø42.4 mm round pipe and flat-sided posts, left and right blind-hole bar holders for Ø42.4 mm and flat posts, connecting holders for intermediate positions, a vertical holder, and a glass-mount holder — in AISI 304 or AISI 316 stainless steel with satin or polished finishes, with holder heights of 20, 22 and 23 mm for Ø10 and Ø12 mm rod diameters.

The correct holder depends on post profile, rod diameter, position in the railing run and whether the rod terminates or passes through.