Sinorock®’s self drilling anchor bolt is made of superior carbon structural seamless steel tube, perfect superficial thread and delicate accessories. From raw materials into the factory to product away the factory, we passed through strict quality inspection, ensure that each product have high quality. The self drilling bolt system is composed of drill bit, hollow bolt, couple, plate, nut and centralizer, and integrates drilling, grouting and anchoring. It has the advantages of small operation area, high efficiency and guaranteed quality. As a new technology, it has been applied in many projects such as transmission line, slope protection and foundation pit enclosure. Different construction site has different geological conditions, such as sand, crushed gravel soft rock, hard rock, wetlands and marshes, etc, according to different geological conditions, we have various types of drill bits for choice. Sinorock® is committed to providing a system solution for global geotechnical anchorage engineering, as a security guard for geotechnical anchorage, and bring reliable self drilling bolts to your project.
