These zinc propeller nut anodes conform to MIL-Spec MIL-A-18001 standards and are designed for cathodic protection in salt water. These replacement zinc anodes can easily be screwed to the shaft to replace prop nuts. Easy to install these prop nut anodes can be used on stern drives as well as outboards. All prop nuts have a die-cast-in stainless steel insert which provides for better bonding as well as significantly increasing the life of the propeller and shaft.

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    Zinc Prop Nuts - B Nut Spare

    Prop Nut Anodes
    -39%
    Prop Nut Anodes
    0 out of 5

    Zinc Prop Nuts – B Nut Spare

    Zinc Prop Nuts – B Nut Spare

      • Used on 7/8″ Shaft
      • Outside Diameter – 1-1/2″
      • Stainless Steel inserts for longer life and improved Bonding.
      • Sea Shield Streamlined Propeller Nut Anodes add extra protection to your propeller, or if there is limited space for a shaft anode, this may be your only choice.
      • An adapter assembly is screwed onto the shaft which replaces the prop nuts and the Prop Nut Anode screws easily to the assembly.
      • Propeller Nut Anodes can also give additional protection to Stern Drives or Outboards, and can be easily replaced when needed.
    $12.39 $7.55
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    Zinc Prop Nuts - C Nut Spare

    Prop Nut Anodes
    -43%
    Prop Nut Anodes
    0 out of 5

    Zinc Prop Nuts – C Nut Spare

    Zinc Prop Nuts – C Nut Spare

    • Used on 1″ & 1-1/8″ Shaft
    • Outside Diameter – 2″
    • Stainless Steel inserts for longer life and improved Bonding.
    • Sea Shield Streamlined Propeller Nut Anodes add extra protection to your propeller, or if there is limited space for a shaft anode, this may be your only choice.
    • An adapter assembly is screwed onto the shaft which replaces the prop nuts and the Prop Nut Anode screws easily to the assembly.
    • Propeller Nut Anodes can also give additional protection to Stern Drives or Outboards, and can be easily replaced when needed.
    $19.81 $11.30
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    Zinc Prop Nuts - D Nut Spare

    Prop Nut Anodes
    -42%
    Prop Nut Anodes
    0 out of 5

    Zinc Prop Nuts – D Nut Spare

    Zinc Prop Nuts – D Nut Spare

    • Used on 1-1/4″ Shaft
    • Outside Diameter – 2- 5/16″
    • Stainless Steel inserts for longer life and improved Bonding.
    • Sea Shield Streamlined Propeller Nut Anodes add extra protection to your propeller, or if there is limited space for a shaft anode, this may be your only choice.
    • An adapter assembly is screwed onto the shaft which replaces the prop nuts and the Prop Nut Anode screws easily to the assembly.
    • Propeller Nut Anodes can also give additional protection to Stern Drives or Outboards, and can be easily replaced when needed.
    $26.90 $15.50
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    Zinc Prop Nuts - F Nut Spare

    Prop Nut Anodes
    -43%
    Prop Nut Anodes
    0 out of 5

    Zinc Prop Nuts – F Nut Spare

    Zinc Prop Nuts – F Nut Spare

    • Used on 1-1/2″ Shaft
    • Outside Diameter – 2- 3/4″
    • Stainless Steel inserts for longer life and improved Bonding.
    • Sea Shield Streamlined Propeller Nut Anodes add extra protection to your propeller, or if there is limited space for a shaft anode, this may be your only choice.
    • An adapter assembly is screwed onto the shaft which replaces the prop nuts and the Prop Nut Anode screws easily to the assembly.
    • Propeller Nut Anodes can also give additional protection to Stern Drives or Outboards, and can be easily replaced when needed.
    $35.44 $20.10
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    Zinc Prop Nuts - G Nut Spare

    Prop Nut Anodes
    -32%
    Prop Nut Anodes
    0 out of 5

    Zinc Prop Nuts – G Nut Spare

    Zinc Prop Nuts – G Nut Spare

    • Used on 1-3/4″ Shaft
    • Stainless Steel inserts for longer life and improved Bonding.
    • Sea Shield Streamlined Propeller Nut Anodes add extra protection to your propeller, or if there is limited space for a shaft anode, this may be your only choice.
    • An adapter assembly is screwed onto the shaft which replaces the prop nuts and the Prop Nut Anode screws easily to the assembly.
    • Propeller Nut Anodes can also give additional protection to Stern Drives or Outboards, and can be easily replaced when needed.
    $47.30 $32.00
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    Zinc Prop Nuts - H Nut Spare

    Prop Nut Anodes
    -32%
    Prop Nut Anodes
    0 out of 5

    Zinc Prop Nuts – H Nut Spare

    Zinc Prop Nuts – H Nut Spare

    • Used on 2″ Shaft
    • Stainless Steel inserts for longer life and improved Bonding.
    • Sea Shield Streamlined Propeller Nut Anodes add extra protection to your propeller, or if there is limited space for a shaft anode, this may be your only choice.
    • An adapter assembly is screwed onto the shaft which replaces the prop nuts and the Prop Nut Anode screws easily to the assembly.
    • Propeller Nut Anodes can also give additional protection to Stern Drives or Outboards, and can be easily replaced when needed.
    $47.30 $32.00