Friction bolts
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
The Ø33 mm Friction Bolt, manufactured from high-strength slotted steel with a welded collar, provides reliable ground support, is compatible with handheld rock drills, and can be load tested with a hydraulic jack.
Features
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High-strength design
Manufactured from slotted high-strength steel tubing with a welded collar to secure the domed plate firmly against the rock surface.
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Easy installation
The Ø33 mm Friction Bolt is designed for handheld rock drills (stoppers/drifters) and is driven into holes at least 150 mm longer than the bolt for secure placement.
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Load testing and protection
Bolts can be pull tested using a special ring and hydraulic jack, with optional hot-dip galvanizing available for added corrosion resistance.
Product specifications
- Bar diameter
- Ø33 mm
- Standard length
- 0.45 - 3.00 m *
- Yield strength
- Minimum: 415 MPa – 75 kN / Typical: 510 MPa – 90 kN
- Tensile strength
- Minimum: 510 MPa – 90 kN / Typical: 610 MPa – 105 kN
- Mass per metre
- 1.53 kg
- Hole diameter range
- Ø33 mm min. / Ø32 mm max.
- Cross sectional area
- Cross sectional area 344 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 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
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
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