Together with the nut attached to the tip from the bolt (this guards the threaded connection from a hammer), drive the fastener into the opening using a hammer. Screw the bolt into it—as you do, the anchor will grow in the opening and push from the concrete. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://bit.ly/3YlSQuH