Rod Hanger, System of Measurement Inch, Mount Type Vertical, Screw Size Not Applicable, Overall Length 1 in, Material Steel, Finish Zinc Plated, Drive Type External Hex, Maximum Load Capacity 1,146 lb, Compatible Material Steel, Compatible Rod Thread Size 1/4 In.-20, Drill Bit Size 25/64 in, Minimum Material Thickness 1/8 in, ICC Approved for Cracked Concrete No, ICC Approved for Un-Cracked Concrete No, Seismic Approved No, Anchor Diameter 25/64 in, Manufacturer Location Made in USA