Sleeve Anchor System of Measurement Inch Anchor Diameter 3/8 in Overall Length 4 in Thread Size 5/16 In.-18 Drive Type External Hex Head Type Hex Nut Width 0.5 in Washer Outside Diameter 0.81 in Material Stainless Steel Material Grade/Class 18-8 Finish Plain Drill Bit Size 3/8 in Compatible Material Block Brick Concrete Stone Minimum Installation Torque 18 ft-lb Maximum Installation Torque 18 ft-lb Minimum Installation Depth 2 in Minimum Hole Depth 7/16 in