Self drilling anchor bolt integrates drilling, injection and anchoring, which can improve construction efficiency and reduce composite cost.
Hollow anchor bar has a full-length thread, which can be cut arbitrarily and lengthened by coupler according to your requirement.
Continuous wave-thread, better bonding effect with cement slurry and better anchoring effect.
Varieties of drill bits can be applied to complex geology in different projects.
-Hollow Anchor Bar