How It Works: Wedge Anchors | Allfasteners Australia

For more information on the product featured, visit: https://www.allfasteners.com.au/wedge... Wedge Anchors use an expansion clip to grip to the walls of embedment holes while the nut is tightened at the top. The collar expands and "wedges" itself against the material wall and shank of the bolt, successfully holding the fixture in place.