Features of self drilling anchor accessories:

1. Anchor coupling. The high-strength coupling lengthens the self drilling anchor rods, which can be applied to a narrow construction space and realize the design idea of extra-long anchor rods to strengthen the surrounding rock. It has a unique tapered center stop which seals the hollow bar connection to minimize grout leakage during simultaneous grouting and drilling.
2. Anchor nut. Nut has hex and spherical types to lock the plate and to transmit force from anchor bar to plate and finally to the working face. A full 100% ultimate tension or compression strength component to the self drilling anchor bar.
3. Drill bit. Alloy drill bit with strong penetrating power in front of the anchor rods, which can easily penetrate all kinds of rocks under the action of rock drilling tools. The continuous corrugated threads complete drilling of anchor holes with a drill bit.Drill bit has various types, steel and carbide with ES, ESS, EX, EXX, EW…
4. Anchor plate. To be used with anchor nut to lock the anchor bar, to transmit load force from the self drilling anchor system to the work face.
5. C In deep holes drilling with lengthened anchor bars (could be connected by coupler), the bar is easy to swing, by attaching a steel centralizer in front of the coupler during drilling to prevent the anchor bar from big swing, so as to guarantee the drilling and grouting quality.