Description
The Rolling Center CAP 15Z – 150mm Galvanised Square Post Cap is a durable, weldable steel cap engineered to protect and finish 150mm square posts.
Its folded-edge design ensures a secure welding surface while improving stiffness and resistance to deformation. The cap is supplied in a zinc-plated offering excellent corrosion resistance and a clean, professional appearance once installed.
With overall dimensions of 155 × 155 × 34mm (internal fit approx. 151 mm), the CAP 15Z provides precise coverage of 150mm square posts, sealing the top to prevent water ingress, rust formation, and internal deterioration. This extends post lifespan and improves the visual finish of any gate, fence, or structural support system.
The product requires only periodic cleaning, as noted in the technical sheet, and contains no hazardous SVHC substances, making it suitable for environments with strict compliance requirements.
Whether you’re upgrading an existing installation or completing a new fabrication project, the CAP 15Z offers reliable performance, clean aesthetics, and long-lasting protection.
Key Features
- Fits 150mm Square Posts – Internal dimension approx. 151mm for a secure weld-on fit.
- Durable DD11 Steel Construction – Made from EN10111:2008 structural steel for long-term strength.
- Corrosion-Resistant Finish – Available in zinc-plated (galvanised white) or black/untreated steel.
- Folded Edges – Provides added rigidity and an improved welding boundary.
- Protects Against Water Ingress – Prevents rust and internal post corrosion by sealing the top.
- Low Maintenance – Only periodic cleaning required.
- Compliance Friendly – Contains no SVHC hazardous substances.
- Italian-Made Quality – Precision-manufactured to Rolling Center standards.

