Get a Prop sells boat propellers, boat motor props, inboard motor, outboard motor and performance boat propellers. Free gift with purchases over $100. http://www.getaprop.com/content-categories/cat-359_1130/nordhavn.html Sat, 26 May 2012 13:59:22 -0500 en Nordhavn Propeller Nut Zinc Anode fits 40 and 55ft Hulls with 2" shafts... Body length: 2.25" Base Dia: 3.00" Inside Diameter: 2.00" http://www.getaprop.com/content-product_info/product_id-8825/nordhavn_propeller_nut_zinc_anode.html http://www.getaprop.com/images/products/NORD.JPG http://www.getaprop.com/content-product_info/product_id-8825/nordhavn_propeller_nut_zinc_anode.html