25mm underground mining Steel Rebar Threaded Bar Coal Rock Bolt With Shear Pin Nut

Threaded Bar Bolt : ​ Threaded bar Bolt is composed of screw thread steel bar, high strength plate, nut, washer, and other accessories.   Application Area: Threaded bar bolt is usually used in harsh environments such as thick coal seams, high stress, large deformation, and difficult to support   Product Parameters: 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   Advantages of Threaded Bar Bolt: (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 i…