Sleeve Anchor System of Measurement Inch Anchor Diameter 1/4 in Overall Length 2 1/4 in Thread Size #10-24 Drive Type Slotted Head Type Round Nut Width Not Applicable Washer Outside Diameter Not Applicable Material Steel Material Grade/Class Not Graded Finish Zinc Plated Drill Bit Size 1/4 in Compatible Material Concrete Masonry Minimum Installation Torque 4 ft-lb Maximum Installation Torque 4 ft-lb Minimum Installation Depth 1 in Minimum Hole Depth 5/16 in