Lily Fasteners WA50334 Wedge-All Wedge Anchor, 1/2 IN Diameter, 3-3/4 IN Length, 2-1/4 IN Minimum Embedment Depth, Thread Size: 1/2 IN, 2-5/16 IN Thread Length, Drill Size: 1/2 IN, Hex Head, Carbon Steel, Zinc Plated, Tension Strength: 1070 LB, Shear Strength: 1485 LB, For Solid Concrete Or Grout Filled Masonry