Mounting Base, Maximum Load Capacity 1,000 lb, Includes Mounting Template, Material Steel, Mount Hole Diameter 0.53 in, Overall Height 15.63 in, Overall Width 12 in, Overall Depth 5 in, Base Type Wall, For Mast Diameter 3.05 in, For Maximum Span Not Applicable, Compatible with Grainger Part Number 48RD48, 48RD49, 48RD50, 54YM61, 54YM62, 54YM63, Compatible with Manufacturer Part Number OZ1000DAV-1000, OZ1000DAV-ACW, OZ1000DAV-DCW, OZCF1200DAV-1000, OZCF1200DAV-ACW, OZCF1200DAV-DCW, Color Yellow WARNING: Cancer - www.P65Warnings.ca.gov - Nickel (Metallic)