Model: | TRFT16 18 20 22 |
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Brand: | TONRY |
Origin: | Made In China |
Category: | Industrial Supplies / Machine Hardware / Nuts & Bolts |
Label: | bolt , thread bar bolt , all thread bar |
Price: |
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Min. Order: | 500 pc |
Last Online:23 Apr, 2014 |
1.Material: steel
2.Fuction : used as rock bolt for support
3.Diameter : 16mm 18 mm 20mm 22m
All Threadbar Bolt is used together with dome plate and net for reliable ground support in mines, tunnels, slopes, or wherever .a
1.FEATURES :
(1) In the longitudinal direcition , rock body has equal tensile strength ,that is about 40% higher than the reverse-twist bolt in the same specification .
(2) Extend the support area , not only be used by end anchoring ,but also be used by fully anchoring ,that has a better support efficiency .
(3)Low price, widely used in coal mines, railways, hydropower and other types of roadway projects.
2.PROPERTY: