Wedge Anchor System of Measurement Inch Anchor Diameter 7/8 in Thread Size 7/8 In.-9 Overall Length 8 in Thread Length 4 3/4 in Material Stainless Steel Material Grade/Class 18-8 Finish Plain Compatible Material Concrete Drill Bit Size 7/8 in Minimum Installation Depth 3 7/8 in Minimum Material Thickness Not Applicable Nut Width 1.3125 in Washer Outside Diameter 2.25 in Wedge Anchor Type Wedge Anchor Seismic Approved No ICC Approved for Cracked Concrete No