SWIVL-EZE 7x7 Zinc Plated Steel 3/4" Pin Base7" x 7" Lock&';N-Pin 3/4" Pin Base SP-67739-T is zinc plated steel. It features a threaded bronze bushing for secure fit and durability. Easy to install with six screws or bolts through the deck. Add more seating to your pontoon, fishing or cruising boat with Attwood seating products. Attwood develops high value, engineered marine products to make life on the water easier to enjoy. Made to meet the demands of boat builders and distribution partners, our products are extensively tested on-site in our lab to provide worry-free boating under all conditions.Features: 7" x 7" Lock&';N-Pin 3/4" Pin Base is a zinc plated steel top plate. Works with a threaded pedestal pin and features an acetal bushing for secure fit and durability Six bolt or screw attachment (hardware not included) WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.