Wedge and Sleeve Anchors
Although there are many varieties, hammer-driven anchors fall into two basic groups. One type consists of a screw or nail that expands a metal or plastic sleeve as it is driven into place. The other is a one-piece anchor that looks something like a crooked nail. A bend in the shaft compresses against the sides of the hole as the anchor is driven in with a hammer. You can use these anchors in concrete, block, brick or stone. Many are intended for light loads. Some types develop as much withdrawal resistance as a concrete screw of the same size, but once installed they don't come out. Hammer-driven anchors fit in holes of the same nominal size: a 1/4-in. anchor gets a 1/4-in.-dia. hole.
Ask TOH users about Power Tools

Contribute to This Story Below