Wedge Anchor System of Measurement Inch Anchor Diameter 5/8 in Thread Size 1/2 In.-13 Overall Length 3 1/4 in Thread Length Not Applicable Eyelet Hole Size Not Applicable Material Steel Material Grade/Class Grade 2 Finish Zinc Plated Compatible Material Concrete Drill Bit Size 5/8 in Minimum Installation Depth 4 1/4 in Minimum Material Thickness 6 in Ultimate Shear Strength (4 000 psi Concrete) 6 105 lb Ultimate Tension Strength (4 000 psi Concrete) 9 719 lb