fischer ULTRACUT FBS II Concrete Screw


The high-performance concrete screw for absolute mounting ease

Your advantages at a glance

  • Up to three screw-in depths per diameter
  • No drill hole cleaning required:
    • for installation in ceilings or floors when using a hammer and diamond drill
    • when using a hollow drill with suction
  • Expansion pressure free anchoring with lowest possible axial- and edge spacing
  • Approval (ETA) covers single point anchoring in cracked concrete
  • Approval (DIBt) for multiple use of temporary anchoring e.g.  for formwork construction
  • The FBS II can due to official approvals be loosen 2x after the installation,  be lined and  readjusted.

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Zinc-plated by galvanisation and powerful

fischer ULTRACUT FBS II Concrete Screw - advantages
  1. The specialised saw tooth geometry provides:

    - Quick and deep cutting into the concrete
    - Optimal multiple use

  2. The thread geometry and the core diameter build a basis for high loads in concrete
  3. Underhead ribs prevent an unintentional loosening
  4. Different head shapes for a wide range of applications

Reusability for temporary anchoring of construction site equipment

The FBS II Ø 8-14 can be used for temporary fixings due to official approvals (ETA) (e.g. installation of formwork construction). Therefore, the thread diameter has to be checked with a test sleeve before any further installations.

As long as the screw end doesn't poke out over the test sleeve, the FBS II can still be used.
fischer ULTRACUT FBS II Concrete Screw - reusability

Up three screw-in depths

fischer ULTRACUT FBS II Concrete Screw - screw in depths

Using the example: FBS II 10x100 45/35/15 US

Tension load in dependency to the screw-in depth

= low load 4,29 kN and 45 mm useable length
= middle load 5,71 kN and 35 mm useable length
= high load 9,61 kN and 15 mm useable length


fischer ULTRACUT FBS II Concrete Screw - Metal construction - Railing anchorage
fischer ULTRACUT FBS II Concrete Screw - Metal construction - Bracket/ Base plate
fischer ULTRACUT FBS II Concrete Screw - Timber construction - Beam anchorage

Metal construction - Railing anchorage

  • For maximum loads and minimum axial- and edge spacing in cracked concrete, in dry interior space.

e.g. FBS II 10x90

Metal construction - Bracket/ Base plate

  • For maximum loads in cracked concrete

e.g. FBS II 12x110

Timber construction - Threshold anchorage

  • Also optimal for extreme useable lengths.
  • Ideal connection for belated adjustment of thresholds. 
e.g. FBS II 10x230 + washer FBS II

Timber construction - Beam anchorage

  • For an optimal force transmission between screw and threshold/ beam
    (Beam width ≤ 80mm)
e.g. FBS II 14x150 + washer FBS II
fischer ULTRACUT FBS II Concrete Screw - angular brackets
fischer ULTRACUT FBS II Concrete Screw - construction site tunnel
fischer ULTRACUT FBS II Concrete Screw - piepe routes

Angular bracket

  • Possible multiple use.
  • For the temporary anchoring of angular support or formwork construction.

e.g. FBS II 14x125

Construction site equipment in the tunnel

  • Possible multiple use.
  • For temporary anchoring of supply lines in the tunnel.
e.g. FBS II 10x120

Pipe routes

  • For the anchoring of heavy pipe routes.
  • Version with pressed washer for a perfect installation.

e.g. FBS II 10x90

Cable routes

  • For a quick anchoring in the push-through installation
  • For highest loads under fire stress

e.g. FBS II 8x70