The fixing of window and door frames requires special plugs and screws. The fischer window frame fixings enable stress-free, lasting, and above all cost-effective fixation. The fischer window screws FFS and FFSZ are cost-effective special screws for window installation, and the fischer window frame fixing F-S is the solution for stress-free stand-off installation. The fischer metal frame fixing F-M, which is classified into fire resistance class R120, is ideal for the installation of window and door frames with increased fire protection requirements.