DeWalt Eng. by Powers 09330-PWR-Hollow-Set Dropin Anchor,Internally Threaded,Carb. Steel 5/16" - Pkg Qty 50

Hollow-Set Dropin™ Expansion Anchor, Internally Threaded, Carbon Steel, 5/16" The Hollow-Set™ Dropin Anchor is designed for anchoring in hollow base materials such as hollow concrete block, brick with weep holes and hollow core pre-cast concrete plank. It can also be used in solid base materials. Hollow masonry materials often have a minimum outer Wall thickness of 1-1/2". During the drilling process, spalling on the back side of the Wall often decreases the Wall thickness available for anchoring to 1" or less. The design of the Hollow-Set™ Dropin overcomes this problem.