Self drilling hollow anchor bolts

Specifications

Specifications

1.deformed steel bar 

2.left & right hand
3.dia 16-36mm
4.ended thread
5.use in mine roof support

Product Features:

1.With a bit at the anchor head, it is easy to cut through various rocks.

2.With the continuous international standard wave-shape thread, this anchor can be used to drill holes with help of bit.

3.It is used as grouting channel and unnecessary to be pulled out.

4.Grouting pressure can be kept at a high level under the help of grouting stopper, so the cracks are fully filled and the fractured rock is improved.

5.With the high-strength coupling elongated by mechanical cutting technology, this self-drilling anchor can be used at the place with narrow space, achieving the aim of rock reinforcement with extra-long anchor.

6.Its unnecessary to take the measure of sleeve protecting and pregrouting to drill the holes in condition of various surrounding rocks since this anchor embodies drilling, grouting and anchoring as a whole, and significant anchoring and grouting are achieved.

Specifications

We supply the whole set of the self drilling anchor bolts.

You can contact us directly if you would like to order the anchor with perticular anti extension power and length.