T thread self-drilling rock bolts, a wide range of diameter, and more powerful support. Widely used in complicated, loose, narrow spaces and broken geological conditions. s an efficient anchoring method, self drilling rock bolt is used in complicated, loose and broken geological condition. It’s widely applied to pre-support project, radial support project, slope stabilization, foundation support project, roadway support project, soil nail wall, back pull anchor rod retaining wall and other rock supporting work.