Sleeve Anchor, System of Measurement Inch, Anchor Diameter 1/2 in, Overall Length 2 1/4 in, Thread Size 3/8 In.-16, Drive Type External Hex, Head Type Hex, Nut Width 0.5625 in, Washer Outside Diameter 1.008 in, Material Steel, Material Grade/Class Not Graded, Finish Zinc Plated, Drill Bit Size 1/2 in, Compatible Material Masonry, Minimum Installation Torque 34 ft-lb, Maximum Installation Torque 38 ft-lb, Minimum Installation Depth 1 1/2 in, Minimum Hole Depth 1 1/2 in