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Dextra Group.
All rights reserved.


  • High tensile fully threaded bars available in steel grade 500/550 to 1080/1230
  • Design and manufactured in compliance with : ASTM A 722, BS4486 JIS G 3109 or equivalent for grade 835/630 & 930/1080 ; ASTM A615 or equivalent for grade 555/700
  • Special steel grade available upon request
  • Elongation up to 15 to 18%
  • Diameter range 15mm to 63.5 mm
  • Continuous hot rolled thread
  • Available with either left hand or right hand threads
  • Fibreglass rockbolts and soilnails available from diameter 22 to 32 mm
  • Design team available for engineering support
  • Easier handling and smaller bore hole diameter thanks to high steel grade
  • Continuous thread makes connection possible at any point
  • Coarse thread and surface hardening allow rough handling
  • Not sensitive to dirt thanks to oval bar section
  • Pre-stressing applicable
  • Coping with large rock displacement possible thanks to high elongation
  • Full range of accessories for specific applications

   
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