Mounting Base Maximum Load Capacity 500 lb Includes Mounting Template Material Steel Mount Hole Diameter 0.53 in Overall Height 14.88 in Overall Width 9 in Overall Depth 5.06 in Base Type Wall For Mast Diameter 3.05 in For Maximum Span Not Applicable Compatible with Grainger Part Number 54YM51 54YM52 54YM53 807EZ5 807EZ6 807EZ7 807F04 807F05 807F06