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-Full threadbar bolt is made of hot rolled rib bar. which has great anchoring effect and can be cut according to demands.
-Usually combined with star plates, provides anchoring force for rock strata.
-Full threadbar bolt undergoes very stringent tensile testing to ensure product quality.
-Provide customers with a pull test for Full threadbar bolt after installation.
Full Threadbar Bolt Functions:
Being used with face plate, domed ball,anti-friction washer and nut.
Full treadbar bolt can be an effective rock reinforcement system for ground support.
Full Threadbar Bolt Features&Advantages:
Available in left hand or right hand tread.
Higher thread ribs mix resin better and improve anchorage.
Suitable for using with either resin cartridges or cement grout.
It has equal strength on the entire length.
Due to continuous thread on entire length. the nut can be fastened upward at any place. This will increase the material utilization ratio and save cost.
Available in black or hot dip galvanized.
Full Threadbar Bolt Mechanical Properties
| ITEMNO | DIA | MASS | YIELD STRENGTH≥335MPa | YIELD STRENGTH≥500MPa | YIELD STRENGTH≥890MPa | ||||||
| (mm) | (kgs/m) | YIELD (kN) | TENSILE (kN) | ELONGATION | YIELD (kN) | TENSILE (kN) | ELONGATION | YIELD (kN) | TENSILE (kN) | ELONGATION | |
| 16 | 16 | 1.5 | ≥67 | ≥97 | ≥17% | ≥100 | ≥135 | ≥15% | ≥178 | ≥231 | ≥9% |
| 18 | 18 | 1.9 | ≥85 | ≥123 | ≥17% | ≥127 | ≥171 | ≥15% | ≥226 | ≥293 | ≥9% |
| 20 | 20 | 2.4 | ≥105 | ≥152 | ≥17% | ≥157 | ≥211 | ≥15% | ≥280 | ≥364 | ≥9% |
| 22 | 22 | 2.9 | ≥126 | ≥182 | ≥17% | ≥189 | ≥255 | ≥15% | ≥337 | ≥438 | ≥9% |
Full Threadbar Bolt Bearing plate:
Full Threadbar Bolt Accessories:
Domed nut, hex nut, anti-friction washer,domed ball
Full Threadbar Bolt Length & Package
Bolts are packaged in bundles.
Bolt fittings, such as nuts, anti-friction washers and domed balls, are supplied fitted to rock bolts in the configuration requested.
Full Threadbar Bolt Applications:
Mines
Tunnels
Slopes
Places where need ground support
