Secure window frames and doors in walls where your drilling depth is limited. These anchors have similar strengths to double expansion anchors but only need about 75% of the installation depth. All have a sleeve that expands inside your hole to create a strong grip. The sleeve, commonly called a caulking sleeve, also creates a seal to block out air and moisture. Since the gripping force is distributed along the entire length of these anchors, they won’t crack soft materials like block and brick. They’re also known as caulk-in anchors.

To install, place the anchor into a drilled hole, cone end first. Insert an installation tool (sold separately) into the anchor to expand the sleeve over the cone. Then, position your component, insert a screw or threaded rod, and tighten. All create a permanent female-threaded connection that lets you remove and reinstall a screw or threaded rod. They cannot be used in overhead applications.