Half-Moon Mast Base/Hinged/Alum. 32-17


Half-Moon hinged base block. Heavy duty Stainless Steel base and cage ensure high strength. SS Springs keep block upright. Aluminum UC sheave features Nomex(tm)/Teflon(tm) bearing with Delrin(tm) ball bearings for a low-friction high strength sheave. Sheave Dia. 2-3/8" (60 mm), Max Line 3/8" (10 mm), Length 4-5/8" (118 mm), Width 3/4" (19 mm), Height 3-3/16" (97 mm), Bearing Height 1-7/16" (37 mm), Fasteners (4), 1/4" RH (6 mm), C/C 3-15/16" (84 mm), SWL 3000 lbs. (1361 kg), Weight 14.5 oz. (411 g)

Schaefer Marine, Inc. warrants its standard catalog products to be free from factory defects in material and workmanship for a period of ten (10) years from the date of purchase, unless otherwise stated in this catalog or any other Schaefer Marine catalog. * Furling, Tuff Luff, and Windlass products have shorter warranties and are shown per product.

We offer free shipping on orders over $100. All other orders are shipped via UPS. For orders outside of the U.S., contact our sales team for custom quote: sales@schaefermarine.com

Fitting products to your boat is not one size fits all, feel free to reach out to our team for assistance at 508-995-9511 or sales@schaefermarine.com