Surface Mounted Box

Heavy-Duty Surface Mount Metal Back Box for UK & HK Electrical Systems

Are you looking for a reliable, industrial-grade solution for surface-mounted wiring? Our Galvanized Steel Surface Mount Electrical Box is engineered to provide maximum safety and durability for modern electrical installations. Designed strictly according to the UK and Hong Kong standard dimensions, this metal back box is the perfect match for standard light switches and power sockets.

Key Features & Benefits

Heavy-Duty Galvanized Steel Construction: Manufactured from premium zinc-coated steel, offering exceptional resistance to impacts, corrosion, rust, and fire. Built to last a lifetime.

Convenient Knock-out Design: Features multiple precision-stamped circular knock-outs around the sides. Easily remove them to connect PVC conduits, flexible pipes, or EMT metal tubes.

Multi-Hole Base & Grounding Terminal: The rear panel comes with pre-drilled mounting slots for easy wall alignment, plus a dedicated brass earth terminal for reliable electrical grounding and safety.

Sleek Industrial Aesthetic: Features smooth, deburred edges and a clean metallic finish that blends seamlessly into minimalist, modern loft, or industrial interior designs.

Versatile Applications

Surface-Wired Renovations: Perfect for retrofitting old buildings, concrete walls, or brickwork where chasing walls for flush mounting is impossible or impractical.

Industrial & Commercial Spaces: The go-to choice for workshops, garages, warehouses, factories, and commercial kitchens requiring robust mechanical protection.

High-Load Environments: Designed to withstand tough environments and pair perfectly with heavy metal conduit systems for maximum cable protection.

Specifications & Compatibility

Material: High-quality Galvanized Sheet Steel

Standard: Compliant with UK/HK BS 4662 standards

Mounting Type: Surface Mount / Wall Mounted

Compatibility: Fits standard 1-gang / 2-gang UK-style switches, fused spurs, and socket outlets.

Installation & Selection Guide

Whether you are installing on a solid concrete wall, drywall/plasterboard, or wooden cladding, this metal box provides a rock-solid foundation.

If you are unsure about the required box depth (16mm, 25mm, 35mm, or 47mm) for your specific switch or socket type, or need advice on the right wall plugs and screws, feel free to contact our support team for professional selection advice!