The Fischer Hammerfix N-S with countersunk head consists of a high-quality nylon plug and a nail screw made from zinc-plated or stainless steel These are pre-mounted for a fast installation process The Hammerfix is inserted through the attachment part in a time-saving push-through installation When the nail screw is hammered in, the plug sleeve expands and creates a secure anchoring in the building material The fischer Hammerfix N-S with countersunk head is ideal for the fixing of wood constructions, plaster and wall connections, and cable and pipe clips in all building materials 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 The wide range of diameters and usage lengths provides the correct plug for every fixing