The fischer connecting elements of the fischer Massive Channel System FMS enable a quick and easy connection to the mounting profile FMP. The fischer hammerhead connector FMHB is suitable as a prefabricated connector for fixing the construction elements. A secure connection of threaded rods, pipe clamps or base plates is created by the FMHI, FMCE and FMCE-L connecting elements. The FMCE-L connecting element enables flexible connections for different elements such as base plates or U-bolts by means of slotted holes. The hot-dip galvanised version is suitable for outdoor installations.