What are screw anchors?valid until: 20 Oct 2022date published: 20 Oct 2021
Power Driver Screw Anchors are inserts, typically made from plastic, metal, or fiber, which enable the attachment of screws into brittle materials — such as masonry or drywall. Known as wall plugs in the UK, screw anchors are available in many forms and offer anchoring solutions for different substrates at varying levels of strength.
The most common type of Power Driver Screw Anchor Socket Type is a tapered plastic tube that’s inserted into a closely fitting drilled hole and tapped flush with the surface with a hammer. A hole in the center of the tube receives the screw and, when tightened, it expands the tube radially outwards gripping the screw anchor against the wall of the hole. Typically, the tube has slits in the base to facilitate its expansion and ribs on the sides to prevent its rotation when tightening the screw.
web site: https://www.earth-anchoring.com/