With the reliable brand, you are assured of product performance, strong marketing, and support programs that only Sinorock can provide. So as advantage of being seller of material of self drilling bolt, we have confidence to give you a better offer with competitive price and reliable quality. Put our heart into work to keep you be satisfactory forever.Sinorock recognized the industry leader, will be your first choice brand. Sinorock continue to insist consumers market-oriented, technological innovation be the core and best attitude to serve each clients.

The self drilling hollow anchor bolt is hollow compared to a solid bar of the same diameter and offers higher static strength,higher bending and shearing strengths.And the hollow injection drill rod/anchor bolt is available in 2m lengths and can be extended to the length required by threaded coupling sleeves.Besides these,the hollow injection bolt system is easy to transport to the work area, simple to assemble and install.

Sinorock is a proud partner of the highest quality brands in SDA bolt for foundation repair and drainage. Whether you’re in need of helical piers or other foundation repair and waterproofing materials, we have you covered with the best products available. Our extensive relationship with all of our certified brands.Serving a range of industries, our culture of doing whatever it takes to meet our customer’s requirements has made us a leader in the industry.