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Appleby  1-Gang Galvanised Steel  Knockout Box 16mm

LAP  1-Gang Galvanised Steel  Installation Boxes 16mm 10 Pack

Knightsbridge  1-Gang Galvanised Steel Unfinished Back Box 16mm 20 Pack

Buy Steel 16 mm Back Boxes at Screwfix.com. Pay your way. PayPal accepted online. Apple Pay accepted in store. Delivery 7 days a week Products reviewed by the trade and home improvers. UK call centre ready for your call 24/7.

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Appleby 1-Gang Galvanised Steel Knockout Box 16mm (30573)

LAP 1-Gang Galvanised Steel Installation Boxes 16mm 10 Pack (81049)

Knightsbridge 1-Gang Galvanised Steel Unfinished Back Box 16mm 20 Pack (162YC)