L. H. Dottie Drop-In Anchor, Anchor Size 3/8-16, Drill Size 1/2 in., AT38 Tool Required, Stainless Steel

Dottie steel drop-in anchors perform well in a variety of concrete strengths. Can be used in brick, and any head style screw can be used. Screw can easily be removed or loosened and tightened. Drill hole in concrete and drop anchor into hole. Place setting tool (sold separately) over anchor and hammer until set. Must use AT tool for proper installation.