Stainless Steel flat plate switches & sockets. This range comes with a 1.3mm plate thickness and is sure to enhance the style of any property. Plate Dimensions: 1 Gang Plug Socket - 88 x 88 x 1.3mm. 2 Gang Plug Socket - 148 x 88 x 1.3mm. Fits into a 35mm - 47mm UK wall back box. Product Details. Supplied with colour coded fixing screws. Full fitting instructions included. BS1363 approved & tested. All Finishes Available: Polished Chrome, Satin Chrome, Black Nickel, Pearl Nickel & Stainless Steel. Long-life design and unprecedented value for money make this the ultimate product for you. All items in this range are tested and approved to BS1363 offering assured quality and safety. For peace of mind these items come with a 10 Year Guarantee.