Caulking Anchor Anchor Diameter 3/4 in Overall Length 1 1/4 in Screw Size 3/8 in Thread Size 3/8 in Thread Depth 1.25 in Thread Type Coarse Material Zamac Alloy Finish Plain Drill Bit Size 3/4 in Minimum Installation Depth 1 1/4 in Ultimate Shear Strength (4 000 psi Concrete) 2 400 lb Maximum Ultimate Shear Strength 2 400 lb Ultimate Tension Strength (4 000 psi Concrete) 2 500 lb Maximum Ultimate Tension Strength 2 500 lb System of Measurement Inch