Stainless Steel Propeller Shafts

Three types of stainless steel propeller shafts are available in the standard lengths and diameters listed. Use our Type 303 shafts where high tensile strength (100,000 P.S.I. approx.) combined with economy is important.

Use our 7-14 shafts which are Ideal for higher horse power engines or if running a 2-blade propeller. The tensil strength is 130,000 to 135,000.

Note: 303 and 7-14 - shafts are available with a taper at both ends. There is an extra machining charge for the taper on the engine end. See 90-760 below. Before ordering a double tapered shaft, see this drawing and instructions. For a guide to selecting shaft diameter based on propeller size, see our Hardware Description page.

Stainless steel propeller shafts are machined with a standard propeller taper, milled for a 1/4" key, and threaded for a standard 3/4" nut. As a special service, we will cut shafts to your specified length and key the end opposite the taper with a 1/4" keyway. Please allow approximately one week for this service. Overall length can be determined by measuring from the coupling in the boat to the aft end of the strut, and adding 5" for 1" shaft.

K-500 Monel. The ultimate propeller shaft to use where highest tensile strength (up to 150,000 P.S.I.) and extra corrosion resistance are desired. Specially recommended for higher speeds or heavy-duty use with safety. Available in 1" diameter PER INCH of length.
NOTE: Maching is extra on these shafts. If you desire a standard taper at both ends, double the machining charge.