Double Expansion Anchor Anchor Diameter 1 1/4 in Overall Length 4 in Screw Size 3/4 in Thread Size 3/4 In.-10 Thread Depth 4 in Thread Type Coarse Material Zinc Alloy Finish Plain Drill Bit Size 1 1/4 in Minimum Installation Depth 4 in Ultimate Shear Strength (4 000 psi Concrete) 14 500 lb Maximum Ultimate Shear Strength 14 500 lb Ultimate Tension Strength (4 000 psi Concrete) 14 500 lb Maximum Ultimate Tension Strength 14 500 lb System of Measurement Inch