T127 self drilling hollow anchor bolt is a type of large diameter anchor bolt
T127 self drilling anchor bolt system is composed of the anchor bar, anchor coupling, anchor nut, anchor plate and drill bit. This system is made of seamless steel pipe with thick wall. In addition, surface thread-shaping technology is taken.
T127 self drilling anchor bolt system eliminates the requirement for a cased borehole. Therefore, it has a high rate of installation since drilling, placing and grouting can be performed in one single operation.
1. Easy to penetrate various rocks.
2. It can be elongated by using couplers.
3. Unnecessary to be pulled out.
4. The hollow bar can be used as grouting channel.
5. Drilling, grouting and anchoring can be finished at the same time.
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