RHS GAL 75 X 75 X 4MM X 8MTR SST RHG75X75X4.0

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RHS GAL 75 X 75 X 4MM X 8MTR SST RHG75X75X4.0 at a glance

Galvanised Rectangular Hollow Section (RHS) steel with 75 mm × 75 mm outer dimensions, 4 mm wall thickness, and supplied in 8-metre length. Designed for structural strength and corrosion resistance in indoor and outdoor applications.

Specifications

Section Type: RHS (Square Hollow Section)
Material: Structural Steel
Finish: Galvanised
Size: 75 mm × 75 mm
Wall Thickness: 4.0 mm
Length: 8 metres

Features & Benefits

Galvanised coating provides strong corrosion protection
High structural strength for load-bearing applications
Uniform wall thickness for reliable fabrication
Easy to cut, weld, and bolt
Long 8 m length reduces joints and installation time

This 75mm x 75mm x 4mm galvanised RHS (rectangular hollow section — in this case a square section) is suited to fabricating equipment frames, gate uprights, post sleeves, and structural rural applications. Cut to length with an angle grinder or drop saw fitted with a metal-cutting blade. Weld or bolt as required, treating all cut ends with cold galv spray to restore corrosion protection on exposed steel. Tips: Although listed as RHS, a 75x75 equal-sided section is technically an SHS — both designations are used interchangeably in the trade. The 4mm wall thickness makes this a heavy-duty structural section. When welding galvanised steel, zinc fumes are hazardous — always work in a well-ventilated area or wear appropriate respiratory protection.

Common Questions

What is this RHS and what's it used for?

This is a Galvanised Rectangular Hollow Section (RHS) — a structural steel tube with a square profile (75 mm × 75 mm). It's designed for load-bearing applications both indoors and outdoors where you need strength and corrosion resistance. The galvanised coating protects it from rust.

What are the exact dimensions and length?

The RHS has outer dimensions of 75 mm × 75 mm, with a 4 mm wall thickness. It comes in an 8-metre length, which reduces the number of joints you'll need during installation.

Can I cut, weld, or bolt this steel?

Yes. The RHS is easy to cut, weld, and bolt, making it straightforward to work with for fabrication and assembly.

Will it rust outdoors?

No. The galvanised coating provides strong corrosion protection, so it's suitable for both indoor and outdoor use without rusting.

Do you ship this product Australia-wide?

Yes, this product ships Australia-wide via Australia Post or road courier. Select your preferred shipping method at checkout.

Can I Click & Collect from Gympie?

Yes — Click & Collect is available from our store at 55 Tozer St, Gympie. Open Mon–Fri 8am–5pm and Sat 8am–12pm. Click & Collect is FREE on orders of $175 or more, or a flat $10 on orders under $175. Select Click & Collect at checkout and we will have your order ready.

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SKU: RHG75X75X4.0
Categories: Steel Supplies
Tags: Steel