Rod Hanger System of Measurement Inch Mount Type Vertical Screw Size 1/4 in Overall Length 1 in Material Steel Finish Climaseal Zinc Plated Drive Type External Hex Maximum Load Capacity 1 510 lb Compatible Material Steel Compatible Rod Thread Size 3/8 In.-16 Drill Bit Size Not Applicable Minimum Material Thickness 3/16 in ICC Approved for Cracked Concrete No ICC Approved for Un-Cracked Concrete No Seismic Approved No Anchor Diameter 1/4 in Manufacturer Location Made in USA