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SKU SP-428043-4B

Base for welding 42.4x80x4mm, RAW, 3 screws

Brand Strofix
€2.61 Tax excluded
€3.16 Tax included
Tax included
Quantity
Steel grade AISI304
Surface finish Raw surface
Mounting surface type Flat
Tube size ø 42,4mm
Adjustable Yes
Plate size ø 80mm
Plate thickness 4mm
Hole count 3
Hole diameter ø 8,5mm

The Strofix base for welding 42.4×80×4mm, RAW, 3 screws is an AISI 304 stainless-steel round base plate for the Ø42.4 mm railing post tube. The plate is Ø80 mm in diameter (D), 4 mm thick (h), with three Ø8.5 mm bolt holes for M8 bolts arranged in a triangular pattern. Supplied with a raw (unfinished) surface. The post tube is attached by welding.

The Ø80 mm round plate provides a compact circular footprint that matches the round Ø42.4 mm post tube. The three-bolt arrangement gives an asymmetric triangular anchor pattern for increased stability over the two-bolt version, suited to higher-load or more exposed installations. The Ø8.5 mm bolt holes accept M8 bolts or anchor rods. The raw surface is standard for base plates concealed by a decorative cover after installation. AISI 304 stainless steel suits standard interior and exterior installations.

Use cases:

  • Compact floor mounting of Ø42.4 mm round railing post tubes
  • Three-bolt triangular anchor pattern for improved stability on round post bases
  • Higher-load or exposed round post installations needing a third anchor point
  • Budget base plate for Ø42.4 mm round tube railing systems
  • Welded post bases concealed by a decorative cover

FAQ

What post tube does this base plate fit?

The Ø42.4 mm round post tube – the standard railing pipe in the Strofix range.

How many bolt holes does it have?

This version has three Ø8.5 mm bolt holes (for M8 bolts) in a triangular pattern. A two-bolt version of the same D80 plate is also available.

Why choose three bolts over two?

The three-bolt triangular pattern gives increased stability, suited to higher-load or more exposed installations. The two-bolt version suits simpler, lower-load installations.

What are the plate dimensions?

Ø80 mm diameter (D) with 4 mm thickness (h). It is a round plate, matching the circular profile of the Ø42.4 mm post tube.

How is the post tube attached?

The post tube is welded to the base plate using TIG or MIG welding.

Why is the surface raw?

The raw finish is standard for base plates that are concealed by a decorative cover after installation.

About Strofix base plates

Strofix base plates fix 40x40 mm and Ø42.4 mm railing posts to a floor, stair or deck. Plates run from 80x80 to 105x105 mm and from Ø80 to Ø100 mm, 4–9 mm thick, with 2–4 anchor holes, in AISI 304, AISI 316 and S235.

Compare every size in base plates for railing posts. To fix a post to the side of a slab, see side mounting of the post.

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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