Friction bolts
Friction Bolt Ø47 mm
- Bar diameter
- Ø47 mm
- Standard length
- 2.10 - 3.00 m
- Yield strength
- Minimum: 400 MPa – 137 kN / Typical: 445 MPa – 153 kN
Manufactured from high-strength slotted steel with a welded collar, the Friction Bolt offers fast installation, immediate load-bearing capacity, and reduced bending on insertion. Load testing and optional hot-dip galvanizing provide added safety and durability.
Features
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Fast, reliable installation
The Friction Bolt is manufactured from high-strength slotted steel with a welded collar and domed plate, enabling quick installation and immediate load-bearing capacity in varying ground conditions.
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Enhanced strength and performance
Made from micro-alloyed steel, the bolt delivers elevated yield stress, reducing bending during insertion and ensuring consistent anchorage even in challenging rock formations.
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Tested and protected for safety
Bolts can be load tested with a pull ring and hydraulic jack to verify anchorage, while optional hot-dip galvanizing provides superior corrosion protection for long-term durability
Product specifications
- Bar diameter
- Ø47 mm
- Standard length
- 2.10 - 3.00 m *
- Yield strength
- Minimum: 400 MPa – 137 kN / Typical: 445 MPa – 153 kN
- Tensile strength
- Minimum: 460 MPa – 158 kN / Typical: 505 MPa – 174 kN
- Mass per metre
- 1.77 kg
- Hole diameter range
- Ø35 mm min. / Ø38 mm max.
- Cross sectional area
- Cross sectional area 220 mm²
Product specification may vary by region. Please download the data sheet specific to your region.
For questions, contact us via the form on our website or the contact details provided in the data sheet. Always confirm key specifications with your local representative.
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* Non-standard lengths are available on request.
Our range of friction bolts
Friction Bolt Ø39 mm
- Bar diameter
- Ø39 mm
- Standard length
- 0.45 - 3.00 m
- Yield strength
- Minimum: 345 MPa – 75kN / Typical: 445MPa – 100 kN
Friction Bolt Ø33 mm
- Bar diameter
- Ø33 mm
- Standard length
- 0.45 - 3.00 m
- Yield strength
- Minimum: 415 MPa – 75 kN / Typical: 510 MPa – 90 kN
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