Sleeve Anchor System of Measurement Inch Anchor Diameter 1/2 in Overall Length 3 1/2 in Thread Size Not Applicable Drive Type External Hex Head Type Hex Nut Width 0.625 in Washer Outside Diameter 1 in Material Steel Material Grade/Class Grade 8 Finish Zinc Plated Drill Bit Size 1/2 in Compatible Material Concrete Minimum Installation Torque 40 ft-lb Maximum Installation Torque 40 ft-lb Minimum Installation Depth 2 1/2 in Minimum Hole Depth 2 1/2 in