Rebar bolt
Manx Bolt
- Bar core diameter
- Ø 21.7 mm
- Standard length
- 0.6 - 3.0 m
- Yield strength
- Minimum: 600 MPa – 200 kN / Typical: 650 MPa – 240 kN

The Manx bolt is a solid bar rock bolt. It features a unique system that eliminates protruding threads and is ideal for low clearance applications. This reduces the risk of damage or injury. The bolt is manufactured from a specialized hot-rolled deformed bar, and includes a rib pattern for improved load transfer and effective mixing of chemical anchors during installation.
Features
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Threadless design
The Manx Bolt eliminates protruding threads beyond the tensioning nut. This makes it ideal for low-seam height applications, and reduces the risk of injury or equipment damage.
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Enhanced load transfer
The deformed rib pattern on the bar actively improves load transfer properties and ensures effective mixing of chemical anchors during installation.
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Robust construction
The Manx Bolt is manufactured from a hot-rolled deformed bar. This means high tensile and shear strength, with optional corrosion protection through thermal diffused coatings.
- Bar core diameter
- Ø 21.7 mm
- Standard length
- 0.6 - 3.0 m *
- Yield strength
- Minimum: 600 MPa – 200 kN / Typical: 650 MPa – 240 kN
- Major bar diameter
- Ø 23.0 mm
- Tensile strength
- Minimum: 840 MPa – 305 kN / Typical: 890 MPa – 340 kN
- Calculated shear strength
- Minimum: 200 kN / Typical: 225 kN
- Elongation (after fracture)
- Minimum: 15% / Typical: 19%
- Mass per meter
- 2.90 kg
- Cross sectional area
- 370 mm2
- Rolled thread
- M24 x 3.0 mm Pitch
- Impact toughness
- Typical 19 joules
-
* in 300 mm increments

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