Expansion Anchor Anchor Diameter 1/4 in Overall Length 1 in Screw Size #6 Thread Size #6-8 Thread Depth 1 in Material Zinc Alloy Finish Plain Drill Bit Size 1/4 in Minimum Installation Depth 1 in Ultimate Shear Strength (4 000 psi Concrete) Not Applicable Maximum Ultimate Shear Strength Not Applicable Ultimate Tension Strength (4 000 psi Concrete) 183 lb Maximum Ultimate Tension Strength 183 lb System of Measurement Inch Expansion Anchor Type Screw Expansion Anchor