Special applications
  • Product Category Picture: "Stair-tread fixing TB / TBB"
  • Application Picture
  • Application Picture
    • Application Picture
    • Product Category Picture
    • Application Picture
      To fix wooden step treads in concrete and steel sub-structures.

      Stair-tread fixing TB / TBB

      The fischer stair-tread fixing TB is a fixing solution for installation of wooden stair-treads on steel stringers. Wooden step treads are fixed directly into concrete and solid building materials with the fischer stair-tread fixing TBB. The stair-tread fixing for steel sub-structures only requires a very small cavity due to the short expansion element. Thus it is suitable even for narrow steel profiles. The special fixing TB comprises a plug sleeve made from high-quality nylon and a corresponding screw. Screwing in the screw causes the fixer to expand in the steel profile. The stair-tread fixing TBB fixings in concrete and solid building materials comprises a plastic sleeve with a directly preshaped expansion plug shank.
      Product Variant
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      Product Variant

      3 product variants
      Drill hole in stair thread
      Drill hole in steel staircase stringer
      Drill hole in concrete
      Collar height
      Screw dimension
      Width across nut
      Viewed 3 of 3 variant (s)

      Your advantages / Product description

      Advantages
      • The elastic shaft geometry allows for the absorption of vibrations, prevents creaking, and thus increases comfort.
      • The stair-tread fixing for steel sub-structures (TB) only requires a very small cavity due to the short expansion element. Thus it is suitable even for narrow steel profiles.

      Application and approval

      Applications
      • Wooden step treads
      Building materials
      TB for fixing in:
      • Hollow steel profiles
      TBB for fixing in:
      • Concrete
      • Solid building materials
      You can find detailed information on building materials in the approval document.

      Assembly instruction

      Functionality
      • The plastic expansion plugs are suitable for anchoring wooden step treads and wooden boards >30 mm to steel profiles (TB) or in solid building materials (TBB).
      • The ideal retention forces are only achieved when using cold wood glue for the fixing in wooden step treads.
      • The plastic washers included with the TBB allow you to level out any unevenness in the substrate.
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      Installation TBB
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