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Self-Drilling Rock Bolt

Drilling, grouting, anchoring, in one!

GEOTEC Steel Self-Drilling Rock Bolt is a rock-bolting system based on a fully coarse threaded hollow bar.
It is especially recommended for the following applications:

  • Roof and wall bolting.
  • All ground conditions. GEOTEC Self Drilling Rock Bolts do not require to pre-drill a hole, therefore making it usable even in soft rock conditions.
  • Installation with grout. The hollow steel anchor rod also acts as a grouting pipe to ease set up. For non-grouting applications, please refer to Mechanical Anchor or Expandable Friction bolt.
  • Temporary or permanent applications. With optional epoxy coating available for permanent applications.

Product features

Drilling Hollow rod

Acts as a drilling rod and a
grouting pipe to simplify
installation process.

Sacrificial Drilling Bits

Available for every ground conditions.

Threaded profiles

Alternative thread profiles and
directions available.

Related solutions

Specific tunneling application of GFRP rebar cage allowing a TBM to break through a reinforcement cage in a minimum time.

Soil Stabilization: Fully cut-able FRP soil nail system used for the stabilization of slope.

Soil Retention: Post-tensioned steel ground anchor system used in excavation works.


At every moment of your customer journey, Dextra teams dedicate themselves to the production of smart construction solutions that allow our customers to reach higher productivity and safety levels on their construction sites.

Dextra holds physical stocks on several continents, complemented in each country by the local inventories of our distributors. With this extended network, Dextra makes sure our products are always at reach no matter where our partners are.

For solutions that require to be customized, Dextra can also go beyond our standard delivery times and offer accelerated delivery schemes. Consult us for more information.

From 3 major industrial sites located in Bangkok (Thailand), Guangzhou (China), and Pune (India), Dextra completely owns its manufacturing facilities and processes. This allows us to have complete control over the timing of our operations and the quality of the solutions produced.

An independently accredited material testing laboratory, accredited to ISO-IEC17025, is located at Dextra’s main Bangkok factory, allowing the testing of material and products.

Dextra aims to supply products that exceed the most demanding international technical approvals and it is our goal to create maximum customer satisfaction by complying with our clients’ needs and specified requirements.

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