fischer ULTRACUT FBS II Concrete Screw


The high-performance concrete screw for absolute installation 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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Product highlights

  1. The unique saw tooth geometry allows a fast cutting into the Mounting base also for multiple use.
  2. Thanks to the special thread geometry, the flanks cut themselves deep into the concrete and offer the highest loads. This saves costs, as fewer fixing points and smaller anchor plates are required.
  3. The approval-compliant adjustment of the concrete screw allows the screw to be used twice for a total of 20 mm, max. 10 mm underlay or to remove the Align the attachment part and then tighten the screw again.
  4. The ULTRACUT FBS II is available in two head versions: countersunk head and hexagon head. (with and without Torx drive).
  5. The under-head riffling prevents the screw from being unintentionally loosened and creates so more security.
fischer ULTRACUT FBS II Concrete Screw - reusability

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.

Three 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 - screw in depths

Powerful and optimal for outdoor applications and wet rooms

  • The specially hardened red tip guarantees a noticeably faster and safer installation.
  • The concrete screw made of stainless steel ensures a high corrosion protection and allows the application in wet rooms and outdoors.
  • The ETA approval covers applications in cracked concrete, as well as the seismic performance categories C1 and C2.
  • The concrete screw ULTRACUT FBS II A4 offers the possibility for use in masonry (solid construction material).

ULTRACUT FBS II zinc-plated steel as concrete-concrete connector

Your advantages at a glance

  • ETA-approval for the fixing of FBS II as a top concrete or concrete-concrete connector for the strengthening of bridges or old buildings.
  • With up to 3 embedment depths, the ULTRACUT FBS II allows for the same screw to be used for different component thicknesses.
  • Due to the optional setting tool SC-ST the correct distance to the existing concrete can be easily reached and a ETA-conform, error-free installation of the FBS II is guaranteed.

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Bridge reinforcement
Parking garage reinforcement

Applications for the ULTRACUT FBS II of galvanized steel

fischer ULTRACUT FBS II Concrete Screw - Metal construction - Railing anchorage
Railing anchorage
fischer ULTRACUT FBS II Concrete Screw - Metal construction - Bracket/ Base plate
Base plate
Treshold anchorage
fischer ULTRACUT FBS II Concrete Screw - Timber construction - Beam anchorage
Beam anchorage
fischer ULTRACUT FBS II Concrete Screw - angular brackets
Angular bracket
fischer ULTRACUT FBS II Concrete Screw - construction site tunnel
Tunnel construction site
fischer ULTRACUT FBS II Concrete Screw - piepe routes
Pipe routes
Cable routes

Applications for ULTRSCUT FBS II made of stainless steel A4

fischer ULTRACUT FBS II Concrete Screw - Metal construction - Bracket/ Base plate
Bracket plate
Canopy anchorage
Stadium seat anchorage