Bolt-On Aluminum Sacrificial Anode for Hull of Boat

Bolt-on aluminum hull anodes provide best cathodic protection in fresh or brackish water. Choose the right Sea Shield Marine anode to ensure the longevity of your equipment. We provide quality anodes that meet the highest Mil-Spec standards.

Hull anodes should be fitted close to the propeller, but not disturb the flow of water. Check to make sure that the voltage between the anode and the propeller is low enough. In this case, the anode will corrode instead of the equipment. Also, the anode will not disturb the operation of the equipment.
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    AHC-10 Aluminum Bolt On Anodes

    ahc bolt on hull anode
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    AHC-10 Aluminum Bolt On Anodes

    Thickness: 1-1/4″ Width: 6″ Length 12″

    1. 5/8″ screw holes on 6″ Center to Center
    2. 1-1/2″ Countersink with steel insert
    3. Diecast to highest MIL-A-24779 standards
    4. Made in USA by Sea Shield Marine
    $127.78 $85.25
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    AHC-20 Aluminum Bolt-On Hull Anode

    ahc bolt on hull anode
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    AHC-20 Aluminum Bolt-On Hull Anode

    Thickness: 2-1/2″ Width: 6″ Length: 12″

    1. 5/8″ Holes on 6″ Center to Center
    2. 1-1/2″ Countersink
    3. Diecast to highest MIL-A-24779 standards
    4. Steel insert with holes for bolt-on installation
    5. Easy installation
    6. Made in USA by Sea Shield Marine
    $219.04 $144.65
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    AHC-5-1/2 Aluminum Divers Dream Bolt On Anode

    ZHC-10 Divers Dream Anode Zinc
    -42%
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    AHC-5-1/2 Aluminum Divers Dream Bolt On Anode

    AHC-5-3/8 Aluminum Bolt-On Hull Anode – (6″ X 12″)

    1. Diecast to highest Mil-Spec standards
    2. Provide cathodic protection
    3. Easy installation
    4. Made in USA by Sea Shield Marine 
    $80.20 $46.75
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    AHC-5-3/8 Aluminum Divers Dream Bolt On Anode

    ZHC-10 Divers Dream Anode Zinc
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    AHC-5-3/8 Aluminum Divers Dream Bolt On Anode

    AHC-5-3/8 Aluminum Bolt-On Hull Anode – (6″ X 12″)

    1. Diecast to highest Mil-Spec standards
    2. Provide cathodic protection
    3. Easy installation
    4. Made in USA by Sea Shield Marine 
    $80.20 $46.75
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    AHC-5-5/8 Aluminum Divers Dream Bolt On Anode

    ZHC-10 Divers Dream Anode Zinc
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    -40%
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    AHC-5-5/8 Aluminum Divers Dream Bolt On Anode

    AHC-5-5/8 Aluminum Bolt-On Hull Anode – (6″ X 12″)

    1. Diecast to highest Mil-Spec standards
    2. Provide cathodic protection
    3. Easy installation
    4. Made in USA by Sea Shield Marine
    $85.43 $51.59
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    Arneson Bolt On Hull Anode (Aluminum)

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    Arneson Bolt On Hull Anode (Aluminum)

    Arneson Zinc Bolt On Anode – (1-1/4″ X 6″)

    1. Designed for the Arneson Pleasure Craft Boat Hull
    2. Diecast to highest Mil-Spec standards
    3. Provide cathodic protection in freshwater, saltwater, and brackish water.
    4. Easy underwater installation
    5. Made in USA, by Sea Shield Marine
    $34.03 $17.47
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    Bayliner 3-Slot Bolt On Hull Anode (Aluminum) | BL-Z-10-ALU

    Bayliner bl-z-10 hull anode
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    Bayliner bl-z-10 hull anode
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    Bayliner 3-Slot Bolt On Hull Anode (Aluminum) | BL-Z-10-ALU

    1. Galvanized steel core for better bonding and longer life
    2. Three-slot hull aluminum anode for use with Bayliner yachts equipped with a three-bolt bonding system.
    3. Fits most (not all) Bayliners so check your bolt dimensions.
    4. Made in USA by Sea Shield Marine
    $99.30 $67.65
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    SSM-25-ALU Aluminum Bolt On Anodes

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    SSM-25-ALU Aluminum Bolt On Anodes

    SSM-25-ALU Aluminum Bolt On Anodes

    1. Diecast to highest MIL-A-24779 standards
    2. Provide cathodic protection
    3. Easy installation
    4. Made in USA
    $0.00
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    SSM-404-ALU Aluminum Bolt On Anodes

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    SSM-404-ALU Aluminum Bolt On Anodes

    SSM-404-ALU Aluminum Bolt-On Anodes

    1. Bolt On Size: 3/4″ x 3 3/8″ x 9 1/4″
    2. Weight 1.5 lbs
    3. Diecast to highest MIL-A-24779 standards
    4. Provide cathodic protection in Fresh and Brackish Water
    5. Easy underwater installation
    6. Made in USA by SEA SHIELD MARINE
    $46.11 $28.48
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    SSM-406-ALU Bolt On Anodes

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    SSM-406-ALU Bolt On Anodes

    SSM-406-ALU Aluminum Bolt On Anodes

    1. Diecast to highest MIL-A-24779 standards
    2. Provide cathodic protection
    3. Easy installation
    4. Made in USA
    $95.65 $48.00
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    TD-L-ALU Tear Drop Aluminum Bolt On Anodes

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    TD-L-ALU Tear Drop Aluminum Bolt On Anodes

    TD-L-ALU Tear Drop Slotted Pleasure Craft Hull Anode Aluminum

    Thickness: 7/8″ Width: 2-1/16″ Length: 5″

    1. 1/4” size screw hole slots fit 1-3/4” – 2-1/2”
    2. Diecast to highest Mil-Spec standards
    3. Provide cathodic protection
    4. Easy installation
    5. Made in USA
    $17.31 $10.01
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    TD-S-ALU Tear Drop Aluminum Bolt On Anodes

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    TD-S-ALU Tear Drop Aluminum Bolt On Anodes

    TD-S-ALU Pleasure Craft Slotted Tear Drop Anodes

    Thickness: 3/4″ Width: 1-5/8″ Length: 3-5/8″

    1. 1/4” size screw hole slots fit 1-5/16” – 1-5/8”
    2. Diecast to highest Mil-Spec standards
    3. Provide cathodic protection
    4. Easy installation
    5. Made in USA
    $10.48 $5.34