With the Spit pro 6 universal nylon wall plug, you securely fasten fixtures in both hollow and solid building materials. Thanks to its six expandable zones, the plug expands evenly in substrates such as brick and aerated concrete for a strong and dependable hold. Integrated anti-rotation ribs prevent the plug from spinning inside the 8 mm drill hole while you drive the screw. Supplied complete with a matching PZ2 drive screw, this 40 mm plug eliminates the hassle of searching for the right fasteners, allowing you to complete installations quickly with a minimum hole depth of 50 mm.