Connecting crossbar holder for 12mm, 42.4, Satin

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 in which two Ø12 mm crossbar sections meet and are joined at one post. 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, so the two crossbar sections meet inside it and the run continues 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. At the end posts, left and right blind-hole holders are used. 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 crossbar 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 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 carries a horizontal Ø12 mm rod on a railing post or a flat surface. At intermediate posts the rod runs through the holder; at end posts it ends in a left or right holder with a blind hole.

Strofix supplies 16 crossbar holders: eight for flat surfaces and eight for Ø42.4 mm round posts – through, left and right end, connecting, front and adjustable front holders, plus a vertical holder and a holder for 1.5–4 mm glass – in AISI 304 (one through holder also in AISI 316), satin or polished, all for Ø12 mm rods.

The correct holder depends on the post profile, the position in the railing run and whether the crossbar follows a stair.