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High Strength Self Drilling Hollow Grouting Rock Bolt with Cutting Service Threaded Steel Anchor Rods and 1-12M Length
| unit | Hollow anchor | | | | |||
diameter | mm | 12/25 | 12/28 | 32/15 | 42/26 | |||
Cross-sectional area | mm2 | 345 | 450 | 563 | 789 | |||
Tensile load | kN | 210 | 270 | 340 | 395 | |||
Tensile Strength | MPa | 600 | 600 | 600 | 500 | |||
Nut load | kN | 110 | 120 | 140 | 150 | |||
Torque | Nm | 80 | 110 | 200 | 200 | |||
Shear Strength | MPa | 150 | 150 | 150 | 140 | |||
Elastic modulus | GPa | 40 | 40 | 40 | 40 | |||
weight | g/m | 642 | 896 | 1156 | 1620 |