Universal cable holder for the vertical installation of cables and lines in the fire protection ducts PYROLINE® Con made of glass fiber reinforced lightweight concrete and PYROLINE® Rapid made of sheet steel with an inner coating. The holders are placed over the head of the loosened fastening screw and then screwed tight with it. The cables can be attached to the bones or in the elongated holes with cable ties. This safely supports the cable weight. Provide at least 2 cable holders per meter during installation.