STB2-50812 1/2" X 8-1/2" Strong-Bolt 2 Carbon Steel Wedge Anchor 25/pk Strong?Bolt 2 Wedge Anchor for Cracked and Uncracked Concrete 1/2" x 8-1/2" Wedge Anchors Category 1 anchor classification High-strength alloy clip on carbon-steel anchors 25 Wedge Anchors per Box