Wedge Anchor System of Measurement Inch Anchor Diameter 1/2 in Thread Size 3/8 In.-16 Overall Length 2 3/8 in Thread Length 7/8 in Eyelet Hole Size Not Applicable Material Steel Finish Plain Compatible Material Brick Concrete Drill Bit Size 1/2 in Minimum Installation Depth 3 3/8 in Ultimate Tension Strength (4 000 psi Concrete) 3 600 lb Wedge Anchor Type Wedge Anchor Manufacturer Location Made in USA Industry Standards FF-S-325. Group II Type 4