This pack of 80 Rawlplug Uno Grey Wall Plugs are suitable for a variety of DIY applications including concrete, masonry, stone, blockwork, plasterboard and tiled walls. They feature anti-rotation technology to prevent spinning in the hole and are designed with expansion throughout the length of the plug, expanding at the top for instant grip. The screw range for these plugs is 5.0 - 8.0mm and they require a 10mm hole diameter. Ideal for fixing shelves, cabinets, suspended ceilings, switch boxes, trunking, cable trays, boilers, water heaters, and radiators.