Large diameter anchor bolts are a type of self drilling anchor bolt, which has a larger diameter than other common sizes. It is usually applied to Pipe Shed and Micro-pile projects where superior strength is required as opposed to standard SDA's.

Features
 

•  Reduce surface subsidence and preventing collapse effectively.

•  Improve bending strength and controlling inclination.

•  Large diameter anchor bolt can be applied to fault zones of excavations and tunnel portals.

•  It will improve wall strength and make excellent adhesive strength when used with high-pressure grouting.