The fischer concrete screw FBS is produced from zinc-plated steel. When the concrete screw is driven into the drill hole with an impact wrench, its thread flanks cut into the concrete in a positive locking manner. The special zinc flake coating protects against corrosion and provides greater safety. The concrete screw can be fully removed and is therefore recommended even for temporary fixings. In addition, the fischer FBS is suitable for fixing railings, shelving systems, as well as cable trays and pipelines in internal areas.