Base Dimension: 17 inches
Bolt Circle Diameter: 12 inches
Bolt Pattern: 4 Bolt
Max Height: 18 feet
Shaft Max Outer Diameter: 6 inches
Spec for Newburyport 17" Bi-Metal Base- 12 Flat Flute Shaft
Ordering sheet for Newburyport 17" Bi-Metal Base- 12 Flat Flute Shaft