For use with bent or straight anchor bolts.Sleeve to be positioned prior to pouring of concrete.Features: Notched bolt hole deign enables anchor bolt to self-thread and maintain a clean grout pocket that Is free of water and dirt.Ribbed design provides for greater pullout strength.Enables quicker and easier final bolt alignment for heavy equipment and structural steel.Eliminate the problems of custom prefitting, welding, pipe cutting, forming, packing and flame cutting in oversize mounting holes.