... the copy of B/L;L/C at sightHeavy duty mechanical anchor bolts for wall: carry a variety of conventional drilling and ... for a specific application. Among these types are Cast-In-Place, Drilled In, Friction, Clamping, Compression, Undercut and Bonded Anchors.The heavy duty ... -S-325 Group 11, Type 4, Class 1Applications: Light to heavy-duty into solid concrete. Installation:●Drill a hole in the concrete ...