We are manufacturer of self drilling anchor bolts, Our main products including T/R-thread hollow anchor bars, self drilling anchor bit, couplers, nuts, plates and other accessories. Type R25, R32, R38, R51, T30, T40, T52, T73, T76 T103 etc are available for your choice.
The SDA bar system offers quick installation because of drilling, borehole stabilization and grouting are combined in one cycle.
Self-Drilling Anchors are a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations.
By drilling a hole in collapsing soil or loose rock, with a sacrificial drill bit and a hollow rod, and after the drilling operation injecting cementitious grout or resin into the hollow rod and surrounding cavity, self-drilling anchors are a top productivity solution.
Self-drilling anchors bolts consists of:
Hollow anchor rod(s)
Sacrificial drill bit
10-20 days after confirming order, detail delivery date should be decided according to production season and order quantity.
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