What are the different types of screw anchors and how are they used in construction projects?
There are several types of screw anchors used in construction projects, including concrete screw anchors, drywall screw anchors, and wood screw anchors. These anchors are used to securely fasten objects to different surfaces, such as concrete, drywall, or wood, by drilling them into the material and providing a strong hold for screws or bolts.