Sleeve Anchor System of Measurement Inch Anchor Diameter 1/4 in Overall Length 3 in Thread Size #10-24 Drive Type External Hex Head Type Hex Nut Width 0.3125 in Washer Outside Diameter 0.5 in Material Stainless Steel Material Grade/Class 18-8 Finish Plain Drill Bit Size 1/4 in Compatible Material Block Brick Concrete Stone Minimum Installation Torque 4 ft-lb Maximum Installation Torque 4 ft-lb Minimum Installation Depth 1 1/4 in Minimum Hole Depth 5/16 in