Strong and reliable plasterboard fixings from Bullfix, designed to hold up to 116kg. These universal fixings are compatible with all standard plasterboard thicknesses (12.5mm - 16mm), including stud, dot & dab, and insulated plasterboard. The patented smart wing design ensures a secure fit, preventing the fixing from working loose. Installation is simple and can be completed in 5 easy steps. This pack includes 4 universal fixings with collars, 4 x 5mm x 20mm screws, and a 20mm drill bit, providing everything you need to hang shelves on plasterboard walls.