Wedge Anchor System of Measurement Inch Anchor Diameter 1/2 in Thread Size 1/2 In.-13 Overall Length 5 1/2 in Thread Length 2 in Eyelet Hole Size Not Applicable Material Steel Material Grade/Class Grade 2 Finish Zinc Plated Compatible Material Concrete Drill Bit Size 1/2 in Minimum Installation Depth 2 1/2 in Minimum Material Thickness 4 in Ultimate Shear Strength (4 000 psi Concrete) 9 621 lb Ultimate Tension Strength (4 000 psi Concrete) 4 447 lb Nut Width 0.75 in