Transfers force optimally in the building material through the 4-way expansion. Apart from the typical expansion, the high-quality nylon used for its production provides secure and permanent fixing. Pronounced rim prevents the plug from slipping into the drill hole. Ideal for fixings in hollow building materials, in aerated concrete and for plaster covering. For use indoors and out. Nylon Construction Suitable for Aerated Concrete Suits 8 - 10 x 70mm Screws Indoor & Outdoor Use 4-Way Expansion Fixing Blades for Flexible Mounting Suitable for Pre-Positioned & Push-Through Installation Anti-Slip Collar Nylon Construction Suitable for Aerated Concrete Suits 8 - 10 x 70mm Screws Indoor & Outdoor Use 4-Way Expansion Fixing Blades for Flexible Mounting Suitable for Pre-Positioned & Push-Through Installation Anti-Slip Collar