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.