Our Polished Chrome Screwless range is beautifully crafted with a slim 4mm profile. Each plate has no screw holes visible on the front plate as this clips onto the back plate once that has already been screw mounted onto the wall. Plate Dimensions. 1 Gang Plate - 88 x 88 x 4mm. 2 Gang Plate - 148 x 88 x 4mm. Fits into a 25mm - 35mm standard UK wall back box. Product Details. Supplied with colour coded fixing screws. Full fitting instructions included. All Finishes Available: Polished Chrome, Brushed Steel, Antique Brass, Matt Black, Black Metal, White Metal, Polar White & 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.