Fix robust Gyproc Habito linings the easy way. 40mm British Gypsum High Performance Screws are designed to easily penetrate Gyproc Habito's strong core for trouble-free fixing. The screws have a lipped countersunk cross head design so that you can drive them in quickly and neatly with an impact driver. This leaves you with a perfect finish that's free from paper burring or bulging. Use our 40mm screws to fix two layers of Gyproc Habito to standard gauge metal studs, or for fixing a single layer to timber framing.