Using their uniquely patented designed slim gripping wings, Gripit Fixings fold out in the gap behind the plasterboard to create one of the most effective and secure fixings on the market today. Ideal for DIY & Trade - hang curtain rails, book shelves and kitchen/bathroom units, to radiators, boilers and wall mounted TV's.Traditional plasterboard fixings, although initially secure often fail over time. Gripit fixings are unique plasterboard fixings that provide the perfect solution to this enduring problem. They are easy to position and fit, and provide a strong, secure fixing for most wall-mounted items. The design spreads the load over twice the diameter of the fixing ensuring the even distribution of any stresses over a wide area.Suitable for use in 9.5 to 15mm thick plasterboard, Gripit fixings are easy to fit. Mark the location, drill the hole using the recommended size flat bit and tap in the Gripit. Push in the insert with a screwdriver and a simple twist spreads the Gripit wings behind the board; job done.The Yellow Gripit fixings come with 4mm Screws. Gripit fixings are reusable: simply turn wing screws to release and remove.