The Fischer Hammerfix N-S with a countersunk head is made of a high-quality nylon plug and a zinc-plated nail screw. These are already pre-fitted for quick assembly. The Hammerfix is led through the component in a time-saving through-type installation. When driving in the nail screw, the fixing sleeve expands and anchors itself securely in the building material. The Fischer Hammerfix N-S with a countersunk head is ideal for fixing timber constructions in all building materials in internal areas. The rapid hammerset installation reduces the amount of time required and allows for an economic series installation. The integrated hammer-in stop prevents the plug from expanding prematurely (jamming), thus enabling a problem-free installation. Together with the cross-slot recess, the thread of the nail screw allows the screw to be removed, thus allowing for subsequent dismantling.