Rod Hanger System of Measurement Inch Mount Type Vertical Screw Size 5/16 in Overall Length 1 3/4 in Material Steel Finish Climaseal Zinc Plated Drive Type External Hex Maximum Load Capacity 2 400 lb Compatible Material Concrete Compatible Rod Thread Size 3/8 In.-16 Drill Bit Size 1/4 in Minimum Material Thickness Not Applicable ICC Approved for Cracked Concrete No ICC Approved for Un-Cracked Concrete No Seismic Approved No Anchor Diameter 5/16 in