Wedge Anchor System of Measurement Inch Anchor Diameter 1/2 in Thread Size 1/2 In.-13 Overall Length 4 1/4 in Thread Length 2 3/4 in Material Stainless Steel Material Grade/Class 316 Finish Plain Compatible Material Concrete Drill Bit Size 1/2 in Minimum Installation Depth 1 7/8 in Minimum Material Thickness 5 in Ultimate Shear Strength (4 000 psi Concrete) 4 760 lb Ultimate Tension Strength (4 000 psi Concrete) 5 100 lb Wedge Anchor Type Wedge Anchor Seismic Approved No