Expansion Shield Anchor Diameter 1 1/4 in Overall Length 3 1/8 in Screw Size 3/4 in Thread Size 3/4 In.-10 Thread Depth 3.125 in Thread Type Coarse Material Zinc Alloy Finish Plain Drill Bit Size 1 1/4 in Minimum Installation Depth 3 1/8 in Ultimate Shear Strength (4 000 psi Concrete) 15 300 lb Maximum Ultimate Shear Strength 15 300 lb Ultimate Tension Strength (4 000 psi Concrete) 9 850 lb Maximum Ultimate Tension Strength 9 850 lb System of Measurement Inch