Expansion Shield Anchor Diameter 9/16 in Overall Length 1 1/2 in Screw Size 5/16 in Thread Size 5/16 In.-18 Thread Depth 1.5 in Thread Type Coarse Material Zinc Alloy Finish Plain Drill Bit Size 9/16 in Minimum Installation Depth 1 1/2 in Ultimate Shear Strength (4 000 psi Concrete) 3 300 lb Maximum Ultimate Shear Strength 3 300 lb Ultimate Tension Strength (4 000 psi Concrete) 2 600 lb Maximum Ultimate Tension Strength 2 600 lb System of Measurement Inch