ContinueSleeve anchors are used to provide an anchor point in a variety of materials, such as concrete, masonry, drywall, and plywood. They are easy and quick to install, which makes them one of the more popular types of anchors. Sleeve anchors consist of a threaded bolt, a metal sleeve, and a nut. The bolt is inserted into a hole drilled into the material, and then the sleeve is placed around the bolt, tightened with a nut, and expanded as the nut is tightened. This expands the sleeve and anchors it securely in the material. They are designed to provide a secure hold in a variety of materials, and can be used in both internal and external applications. They are also widely used in insulation and roofing applications, as they create a secure hold without damaging the material.