Bolt Anchor, Anchor Diameter 1/2 in, Overall Length 2 7/8 in, Thread Size 1/2 In., Drill Bit Size 1/2 in, Material Zinc Alloy, Finish Zinc Plated, Material Grade/Class Grade 5, Minimum Installation Depth 2 3/8 in, Nut Material Zinc Alloy, System of Measurement Inch, Manufacturer Location Made in USA, Compatible Hole Diameter 0.5 in, Compatible Material Concrete, Head Width 0.75 in, Installation Method Double Taper Bolt with Expansion Nut, Maximum Installation Torque 90 ft-lb, Removable Removable