Bar holder – Left blind hole - 42.4

The Strofix bar holder – left blind hole (42.4) is an AISI 304 stainless-steel crossbar end fitting designed for Ø42.4 mm railing post tubes. The blind hole accepts the crossbar from one side only, making it the correct fitting for the left-hand termination point of a horizontal crossbar run. Available in three height variants (20, 22, or 23 mm) with satin or polished finish, and screwing elements included.

The height variant determines the crossbar bore diameter and body size. The H = 20 mm variant accepts a Ø12 mm crossbar with a 22 mm body diameter, available in both satin and polished finish. The H = 22 mm and H = 23 mm variants accept a Ø16 mm crossbar with a 25 mm body diameter, available in satin finish only. All variants use a Ø6.5 mm screw hole for mounting to the Ø42.4 mm post tube. AISI 304 stainless steel is suitable for standard interior and exterior railing installations.

The satin finish reduces visible fingerprints and micro-scratches; the polished finish (H = 20 mm variant only) provides a mirror-like appearance for installations requiring a high-gloss look.

Use cases:

• Left-hand crossbar termination on balcony and terrace railing post systems
• End-of-run bar holder on Ø42.4 mm post tube balustrades
• Staircase railing crossbar end fitting at the left-side post
• Commercial and residential railing systems with horizontal bar infill
• Mezzanine and gallery edge protection railings with crossbar terminations

FAQ:

What crossbar diameter does this holder accept?

The crossbar diameter depends on the height variant selected. H = 20 mm accepts a Ø12 mm crossbar (D = 22 mm body). H = 22 mm and H = 23 mm accept a Ø16 mm crossbar (D = 25 mm body). Select the height that matches your crossbar rod diameter.

What does "left blind hole" mean?

A blind hole is a dead-end bore — the crossbar enters from one side but does not pass through. The "left" designation indicates this holder is for the left-hand end of a crossbar run, where the bar terminates at the post. For the opposite end, order the matching right blind hole variant for Ø42.4 mm tubes.

Are left and right blind hole holders interchangeable?

No. The left and right blind hole holders are mirror images of each other. Each is shaped to receive the crossbar from the correct direction at its respective end of the run. Order one left and one right per crossbar to complete a pair.

Which finish options are available?

The H = 20 mm variant is available in satin or polished finish. The H = 22 mm and H = 23 mm variants are available in satin finish only. Select the desired finish in the dropdown at order time.

What is the difference between H = 22 and H = 23 mm?

Both the H = 22 mm and H = 23 mm variants accept a Ø16 mm crossbar with a 25 mm body, in satin finish. The 1 mm height difference between them accommodates slight variations in post tube geometry or crossbar alignment.

Are screwing elements included?

Yes. Screwing elements are included with the holder. The mounting screw passes through a Ø6.5 mm hole to secure the holder to the Ø42.4 mm post tube.

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.