Expansion Anchor Anchor Diameter 3/4 in Overall Length 3 in Screw Size 1/2 in Thread Size 1/2 in Thread Depth 3 in Thread Type Coarse Material Zinc Alloy Finish Plain Drill Bit Size 3/4 in Minimum Installation Depth 3 in Ultimate Shear Strength (4 000 psi Concrete) 2 800 lb Maximum Ultimate Shear Strength 2 800 lb Ultimate Tension Strength (4 000 psi Concrete) 6 800 lb Maximum Ultimate Tension Strength 6 800 lb System of Measurement Inch Expansion Anchor Type Lag Shield Anchors