Wedge Anchor System of Measurement Inch Anchor Diameter 1/2 in Thread Size 1/2 In.-13 Overall Length 3 3/4 in Thread Length 2 3/8 in Material Stainless Steel Material Grade/Class 316 Finish Plain Compatible Material Concrete Drill Bit Size 1/2 in Minimum Installation Depth 2 1/4 in Minimum Material Thickness Not Applicable Nut Width 0.75 in Washer Outside Diameter 1.25 in Wedge Anchor Type Wedge Anchor Seismic Approved No ICC Approved for Cracked Concrete No