Concrete screw with countersunk head FBS II Fischer

The fischer UltraCut FBS II SK concrete screw is a robust anchoring solution that offers the highest level of installation comfort. The countersunk head version enables anchoring that meets high aesthetic requirements. The European Technical Approval for cracked and non-cracked concrete as well as for seismic loads and the fire resistance class R 120 guarantee even greater safety. The blade geometry enables quick and easy installation. No drilling is required for installation in ceilings and floors. The anchoring without expansion (undercut) enables anchoring with minimal spacing and minimal edge distance.

The UltraCut FBS II US US allows the same screw to be used for different element thicknesses, with a maximum of 3 embedment depths.
The special serrated geometry enables quick cutting into the concrete.

No drilling is required for vertical installation (ceiling and floor). For floor fastenings, a hole with a diameter 3 times larger than the drill hole diameter should be drilled.
Anchoring without expansion (undercut) allows for the lowest axial spacing and edge distances.
The ETA approval covers applications in cracked concrete and seismic zones in categories C1 and C2.
Approved adjustment for concrete screws for concrete to loosen the screw twice to position it max. 10 mm below the head of the base plate or to align the fixed part and then retighten the screw.
The control gauge allows for reuse in temporary fixings (e.g. inclined supports) covered by the national approval.