BTS B screw anchor (concrete screw)
Country: Spain · Model: BTS B
The BTS B screw anchor, or concrete screw, is screwed straight into a drilled hole, where it cuts its own thread, and is installed in C20/25–C50/60 concrete, cracked and non-cracked. Fire resistance R120 and approval for seismic categories C1 and C2 open it to fixings with fire and seismic safety requirements.
- Coating
- zinc flake
- Concrete
- C20/25–C50/60, cracked and non-cracked
- Approvals
- ETA; fire resistance R120; seismic C1/C2; VdS (sprinklers)
- Installation
- 3 embedment depths, two re-installations permitted
Technical specifications
| Coating | zinc flake |
|---|---|
| Concrete | C20/25–C50/60, cracked and non-cracked |
| Approvals | ETA; fire resistance R120; seismic C1/C2; VdS (sprinklers) |
| Installation | 3 embedment depths, two re-installations permitted |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The anchor creates no expansion pressure on the base material, so it is placed closer to the edge and at smaller spacing, and installation is faster because nothing has to be driven in and no nut tightened. The steel screw has a cutting thread and a zinc flake coating with increased corrosion resistance. Three embedment depths are provided, two-fold adjustment by unscrewing and re-installing, and full removal if needed, which is convenient for temporary fixings and for aligning equipment. The product has a European Technical Assessment ETA, class R120 corresponds to fire resistance up to 120 minutes, and compliance with VdS requirements means sprinkler fire-extinguishing systems can be fixed with it. Typical work for the BTS B is cable trays and busbar trunking, ventilation, mounting profiles, brackets, fences, racks and equipment on concrete walls and floors.
How to choose
The diameter and length are chosen by load and embedment depth from the full size range in the manufacturer's catalogue. The range has recently been extended with three new BTS B 12 variants and two additional lengths of BTS B 14. For hollow brick and masonry the ResiFIX chemical anchor is better suited, for heavy fixings with through-fixing the BAZ plus wedge bolt with ETA option 1, and for mass fixing of clamps and clips the FORCE ONE+ gas-powered tool with 13–40 mm nails is faster.
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BTS B screw anchor (concrete screw). We reply within one business day.
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FAQ
What concrete class does the BTS B screw anchor allow?
The approval covers concrete of classes from C20/25 to C50/60, both cracked and non-cracked.
Can the BTS B concrete screw be unscrewed and installed again?
Yes, the anchor allows two-fold adjustment with re-installation, and if needed it is removed completely. There are 3 embedment depths.
Is the BTS B suitable for fixing sprinkler systems?
Yes, the anchor is suitable for sprinkler fire-extinguishing systems according to VdS requirements. It also has fire resistance R120 and approval for seismic categories C1 and C2.
Where are BTS B screw anchors made?
The BTS B is made by a Spanish family group with a history of more than 50 years in fasteners, which has plants in Spain, Germany, China, the USA and Mexico. The daily volume reaches about 14 million screws and 1 million plugs, and export covers more than 100 countries.
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