{"product_id":"knightsbridge-1-gang-16mm-galvanised-steel-back-box","title":"Knightsbridge 1 Gang 16mm Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang 16mm galvanised steel back box is a 73mm square flush-mounting enclosure designed for single switches, sockets and other 1-gang electrical accessories in residential, commercial and industrial installations. The 16mm recessed depth makes it suitable for shallow wall cavities, partition walls and surface-mount applications where a slim profile is required.\u003c\/p\u003e\n\u003cp\u003eConstructed from 1mm galvanised steel, the box provides mechanical protection for wiring terminations and mounts behind the faceplate of switches and sockets. One mounting lug is fixed, the other adjustable, allowing the box to be levelled during installation on timber studs, plasterboard or masonry. The integral earth terminal connects protective earth continuity from incoming cable to outgoing accessories.\u003c\/p\u003e\n\u003cp\u003eOval knockouts on the side and rear panels accept standard 20mm conduit grommets and allow cable entry from multiple directions depending on the run. The galvanised steel finish resists corrosion in damp environments and provides a low-resistance earth path. The box meets EN 60670 standards for electrical accessory enclosures and carries a 25-year warranty.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795596_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall depth is required to fit a 16mm back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA minimum wall cavity or chased depth of 18-20mm is needed to accommodate the 16mm recessed depth plus a small clearance for cables behind the box. In solid walls, a 20-25mm chase is typical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size accessories fit this back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 73mm square footprint accepts all standard UK 1-gang switches, sockets, dimmers, cooker switches, shaver sockets and other single-gang accessories with 60.3mm mounting centres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in bathroom zones?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, subject to the accessory fitted and the specific zone location. The galvanised steel construction and earth terminal support safe installation in bathroom environments when paired with appropriate IP-rated accessories and compliant wiring methods.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the adjustable lug for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe adjustable mounting lug slides along a slot in the box, allowing the installer to align the box with off-centre stud positions or uneven masonry fixings without having to re-drill.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293881884939,"sku":"GSK16","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177330_0e025988-544b-435d-aecf-4271928c58ad.jpg?v=1714665473","url":"https:\/\/niori.co.uk\/products\/knightsbridge-1-gang-16mm-galvanised-steel-back-box","provider":"Niori","version":"1.0","type":"link"}