Rod Hanger System of Measurement Inch Mount Type Swivel Screw Size 1/4 in Overall Length 2 9/16 in Material Steel Finish Zinc Plated Drive Type Socket Compatible Material Concrete Compatible Rod Thread Size 3/8 In.-16 Drill Bit Size 1/4 in Minimum Material Thickness Not Applicable Anchor Diameter 3/8 in Body Length 2 in Color Silver Compatible with Grainger Part Number 54PD97 Compatible with Manufacturer Model Number PFM2201250 Head Width 0.5 in Industry Standards FM Approved