Threading Bar Bolt:
Threading bar bolt is composed of screw thread steel bar, high strength plate, nut, washer, and other accessories.
Bolts are usually used in harsh environments such as thick coal seams, high stress, large deformation, and difficult to support.
Feature:
1. Bolts have high-strength stress and good supporting ability.
2. Installation is quick and easy.
3. Use with resin agent to obtain permanent support.
4. Used in areas with high stress and large deformation.
5. The price is low, and it is widely used in various roadway projects.
SPECIFICATION:
|
Item No. |
Diameter |
Material 500Mpa |
Length |
||
|
Min Yield |
Max Breaking |
Elongation |
|||
|
ATTB16 |
16mm |
98 |
140 |
≥15% |
1-6meters |
|
ATTB18 |
18mm |
125 |
178 |
≥15% |
1-6meters |
|
ATTB20 |
20mm |
157 |
220 |
≥15% |
1-6meters |
|
ATTB22 |
22mm |
190 |
265 |
≥15% |
1-6meters |
|
ATTB25 |
25mm |
245 |
340 |
≥15% |
1-6meters |