Wedge Anchor System of Measurement Inch Anchor Diameter 7/8 in Thread Size 7/8 In.-9 Overall Length 8 in Thread Length 3 7/8 in Material Steel Material Grade/Class Not Graded Finish Zinc Plated Compatible Material Concrete Drill Bit Size 7/8 in Minimum Installation Depth 4 in Ultimate Tension Strength (4 000 psi Concrete) 12 980 lb Wedge Anchor Type Wedge Anchor Seismic Approved No ICC Approved for Cracked Concrete No ICC Approved for Un-Cracked Concrete No Includes Nut Washer