Craftsman Marine propeller shafts are made of Duplex 1.4462 stainless steel. Craftsman Marine propeller shafts are carefully straightened and fine-machined, complete with taper 1:10, keyway and thread for the nut cap. Key, brass nut cap and zinc anode are included. Duplex 1.4462 combines all the best properties of diverent variaties of stainl...