Wedge Anchor, System of Measurement Inch, Anchor Diameter 1/2 in, Thread Size 1/2 In.-13, Overall Length 2 3/4 in, Thread Length 1 1/2 in, Eyelet Hole Size Not Applicable, Material Steel, Material Grade/Class Grade 2, Finish Galvanized, Compatible Material Concrete, Drill Bit Size 1/2 in, Minimum Installation Depth 2 1/4 in, Minimum Material Thickness 4 in, Ultimate Shear Strength (4,000 psi Concrete) 6,828 lb, Ultimate Tension Strength (4,000 psi Concrete) 5,068 lb, Nut Width 0.75 in