The Fischer Ultracut FBS II is a concrete screw designed for maximum installation comfort.

The countersunk head version is suitable for visually demanding anchoring applications. The European Technical Assessment for cracked and uncracked concrete, as well as for seismic loads and fire suitability for fire resistance class R 120, ensures an additional level of safety. The sawtooth geometry enables quick and energy-saving installation, and no hole cleaning is required when installing in ceilings and floors. The expansion pressure-free anchoring allows for minimal edge and axis distances.

Product advantages include maximum flexibility in load and component thickness due to up to three approved screw-in depths. The special sawtooth geometry allows for quick cutting into the concrete, and no hole cleaning is required when installing in ceilings or floors or when using hollow drills with suction. The expansion pressure-free anchoring (undercut) ensures minimal edge and axis distances. The ETA approval covers applications in cracked concrete as well as seismic performance categories C1 and C2. The approval-compliant adjustment allows the concrete screw to be loosened up to 20 mm twice, enabling the component to be shimmed and/or aligned.

For outdoor anchoring and in damp areas, use the FBS II R version. When installed vertically (in ceilings and floors) and using hollow drills with suction, hole cleaning is not required. When drilling into the ground, it must be drilled three times the drill diameter deeper.

Caution: The manufacturer refers to the drill diameter in the article designation and not to the screw diameter.

Drive: TX30, usable length max. (mm): 55, ETA rating: ETA Option 1, drill diameter (mm): 6, length (mm): 80, d1 (mm): 7.5, surface: galvanized-blue, brand: Fischer, drilling depth (mm): 90, size (mm): 6x80, anchoring depth (mm): 25, shape: SK, material: steel, head shape: countersunk.