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fischer Stair Fixing TB, for wooden treads, steel profiles, 14×25/9 mm holes, 5×40 screw, 50 pcs
Description
The fischer Stair Fixing TB is a set for installing wooden treads on steel stair structures. The special geometry of the nylon sleeve damps vibrations to prevent squeaking, while the short expansion zone enables fixing in narrow steel profiles.
Benefits and key features
- No tread squeak – vibration damping by sleeve geometry.
- Works in thin-walled steel profiles – short expansion section.
- High-quality nylon element for durable anchoring.
- Easy installation – the sleeve expands in the profile as the screw is driven.
Properties & applications
- Use: fixing wooden treads to steel stair structures.
- Base materials: steel profiles (TB variant).
- Installation: after drilling, the nylon sleeve expands while screwing; the tread is bonded with cold wood glue.
Technical parameters
| Parameter | Value |
|---|---|
| Hole in tread | 14 × 25 mm |
| Hole in side of steel step | 9 mm |
| Flange height | 5 mm |
| Screw size (ds × ls) | 5.0 × 40 mm |
| Wrench size | 15 mm |
| Sleeve material | Nylon (PA) |
| Packing / quantity | Folding box / 50 pcs |
| GTIN (EAN) | 4006209605806 |
Storage recommendations
Store in a dry place, in the original packaging, away from UV and heat sources. Avoid long-term loading of parts before installation.
FAQ
1) Which base materials is TB for?
Steel profiles in stair structures.
2) What holes should I drill?
14 × 25 mm in the wooden tread; 9 mm in the steel profile.
3) Does the system reduce squeaking?
Yes, the sleeve geometry damps vibrations and limits squeak.
4) How many pieces per pack?
50 pcs (EAN: 4006209605806).
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