The fischer ceiling nail FDN is a push-through anchor made from zinc-plated steel. The FDN is approved for multiple fixing of non-load-bearing systems in concrete. The ceiling nail is set in the time-saving push-through installation and then hit with the hammer into the drill hole. The expansion wedge is then driven in flush to the nail head. This causes the FDN to expand against the hole wall. The fischer ceiling nail FDN is ideal for fixing wire and nonious hangers, air lines, and metal profiles.