Full Threadbar Bolt
- -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
Full threadbar bolt is made of hot rolled rib bar. which has great anchoring effect and can be cut according to demands. 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
| Diameter | Yield Strength | Tensile Strength | Elongation A % | Mass Meter | Core Dia | Major Dia | |||||||
| Min | Typ. | Min | Typ. | Min | Typ. | ||||||||
| 20mm | 515 MPa | 162KN | 560 MPa | 176 KN | 630 MPa | 198 KN | 710 MPa | 220 KN | 18% | 24% | 2.46 KGS | 19.5mm | 22.5mm |
| 22mm | 525 MPa | 199KN | 590 MPa | 224 KN | 652 MPa | 247 KN | 761 MPa | 289 KN | 18% | 24% | 2.98 KGS | 21.2mm | 23.8mm |
| 25mm | 550 MPa | 269KN | 610 MPa | 298 KN | 684 MPa | 335 KN | 798 MPa | 391 KN | 18% | 24% | 3.85 KGS | 24.8mm | 28.5mm |
Full Threadbar Bolt Bearing plate
Full Threadbar Bolt Accessories
Domed nut, hex nut, anti-friction washer,domed ball
Full Threadbar Bolt Length and 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
