1-Gang Galvanised Steel Knockout Back Box 35mm

£0.50 £0.60 Inc VAT

Deep Flush Mounting Electrical Back Box: Durable 1-gang 35mm galvanised steel knockout back box for housing USB sockets, dimmers, and thicker faceplates. Features 20mm knockouts and an adjustable lug. In stock at EWS Flint.

1000 in stock

Estimated Standard Delivery Sep 2, 2026 - Sep 3, 2026

Description

Designed for flush wall installation, this 35mm deep 1-gang galvanised steel back box provides extra wiring space for modern electrical accessories. The extra depth makes it ideal for housing USB charger sockets, rotary dimmers, smart switches, and decorative flat-plate accessories that require additional rear cabling clearance.

Pressed from high-grade steel with a protective zinc finish, it delivers structural durability and corrosion resistance. The box features multiple 20mm cable knockouts on the rear and sides for flexible conduit and cable entry.

Stock Availability & Trade Counter: In stock for fast delivery or trade counter collection at Unit 5, Heinzel Park, Flint CH6 5EX. Call 01352 733200 or email sales@electricalwholesalesupplies.co.uk.

Key Features & Benefits

  • 35mm Extra Depth: Provides generous clearance for USB sockets, dimmers, and smart switches.

  • Galvanised Steel Construction: Ensures long-lasting strength and indoor rust resistance.

  • Multiple Cable Knockouts: 20mm knockouts on all sides and base for quick cable entry.

  • Adjustable Lug: Makes faceplate alignment quick and precise.

  • Integrated Earth Terminal: Fitted with brass earth rivet for secure circuit protective conductor connection.

Specifications

Feature Specification
SKU / Part Code 135
Gangs 1-Gang (Single)
Depth 35mm
Material Galvanised Steel
Knockout Sizes 20mm Knockouts
Mounting Type Flush Wall Mounting
Standards BS 4662 Compliant

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