DSI South Africa 16mm Anchor Bolt

Rock and Roof Bolts

20mm Anchor Bolt

DSI South Africa 20mm Anchor Bolt
Physical Properties
  Yield Strength500MPa160kN
Ultimate Tensile Strength730MPa230kN
Calculated Shear Strength160kN
Standard Elongation16%
Uniform Elongation8%
Mass Per Metre2.583kg
Bar Core Diameter20mm
Major Bar Diameter21.8mm
Bar Straightness to AS 1442-1991
Cross Sectional Area316mm2
Rolled Thread DIM405-20mm

General Features

  • Manufactured from a special hot rolled deformed bar designed by DSI South Africa known as "DDBAR", this bolt features a rib pattern which actively assists with mixing the chemical anchors during installation.
  • The bolt rib pattern design has modified physical characteristics to maximise load transfer from the rock to the bolt, with higher transverse ribs together with lower profile longitudinal ribs.
  • The rolled thread strength nominally equals the column strength of the bar.
  • The 20mm anchor bolt is designed to be used with resins.

Standard Lengths & Packaging

  • Standard bolt lengths range from 600 to 2400mm.
  • Non-standard requirements are available by negotiation.
  • Bolts are packaged in bundles with threads.

 Notes

  • Minimal order quantities may apply to this product.
  • Only DSI South Africa rock bolt components should be used to enable the full performance of the bolt system to be obtained.
  • DSI South Africa Mining Products Division is Quality Assured to ISO 9001:2000, Registration No. LS3239.