These anchors are used to install studs into an existing cement pad / foundation.
They are installed by drilling holes into the concrete, then tapping the studs into the concrete. As the nut is tightened, the stud will move up slightly allowing the anchor to "grab" the wall of the hole. The expanding washer will fill the space and permenantly anchor the stud into the concrete.
|Contents||4 each (Studs, Bolts, and Washers)|
|Shipping Weight||6 lbs|