Underground Support Industry Leading Brands

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Category
Grooved Bolt/Paddle bolt
  • High Strength 840 Grade Bar
  • High Strength 840 Grade Bar
  • High Strength 840 Grade Bar
  • High Strength 840 Grade Bar
High Strength 840 Grade Bar

High Strength 840 Grade Bar


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产品展示

产品展示

Product details:

Key Features

High Toughness

Extra High Strength

Resin Anchored Bolt

Product has been tested by SGS, WOLLONGONG UNIVERSITY

Mechanical Properties-22mm

PropertiesMinimumTypical
Yield Strength600MPa220kN650MPa240kN
Tensile Strength840MPa305kN920MPa340kN

Calculated Sheat 

Strength

240kN260kN
Elongation A%15%20%

Charpy V-notch 

Impact

27Joules Min 


Mass Per Meter2.98kgsCross Sectional Area370m
Bar Core Diameter21.7mmMajor Bar Diameter23.2mm
Rolled ThreadM24x3.0 PitchNut Breakout Torque130-170Nm


Accessories

Bearing plate, Nut, Domed Ball, Anti-friction Washer


Length & Package

Length:450-3000mm as specified

Package:100pcs —300pcs per bundle as specified


Others: Other dimensions and designs can be customized to suit particular applications