Continuous thread bar bolt: 1.Material: steel 2.Fuction : used as rock bolt for support 3.Diameter : 16mm 18 mm 20mm Continuous Thread Bar Bolt: Continuous Thread Bar Bolt is used together with dome plate and net for reliable ground support in mines, tunnels, slopes, or wherever .
(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 .a (3)Low price, widely used in coal mines, railways, hydropower and other types of roadway projects
Continuous thread bar bolt