Birdsall Marine Design fabricates two sizes of nuts to attach your steering wheel to the helm. We offer a ½”-20 nut size to fit the Hynautic system and 5/8”-18 to fit the Seastar system. Manufactured on a CNC machine with engraved Birdsall Logo to compliment any wheel.
We are here to help! Each product has a Review & Questions tab were you can ask specific questions or find product specific answers and reviews from other customers.






