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MARTYR
Streamlined Collar Zinc Anodes with Hex Head Screws

Designed for use in saltwater, these zinc anodes are composed of an alloy that meets Mil-Spec MIL-A-18001 for sacrificial anodes. This alloy is mostly zinc, but with measurable concentrations of cadmium (~0.1%) and aluminum (~0.25%). The additional cadmium causes the anode to erode from the surface inward, which causes a “sandblasted” appearance to the surface. When the anode is almost dissolved, it needs to be replaced. Features include a 100% circular radius, interlocking halves, stainless steel hardware and extra alloy around the fasteners.

 

Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Zinc, 1/2"shaft x 1 5/8"dia. x 1 15/16"L 8684995 CMX00
In stock online.

$10.99

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Zinc, 3/4"shaft x 2 1/8"dia. x 2 1/8"L 110270 CMX01
In stock online.

$11.49

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Zinc, 7/8"shaft x 2 1/8"dia. x 2 1/8"L 110288 CMX02
In stock online.

$12.49

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Zinc, 1"shaft x 2 1/8"dia. x 2 1/8"L 110254 CMX03
In stock online.

$14.49

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Zinc, 1 1/8"shaft x 2 1/8"dia. x 2 1/8"L 110262 CMX04
In stock online.

$15.49

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Zinc, 1 1/4"shaft x 2 3/4"dia. x 2 1/2"L 154815 CMX05
In stock online.

$16.49

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Zinc, 1 1/4"shaft x 2 11/16"dia. x 2 7/16"L 593659 CMX05A
In stock online.

$21.99

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Zinc, 1 3/8"shaft x 2 1/2"dia. x 2 7/8"L 194316 CMX06
In stock online.

$18.49

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Zinc, 1 1/2"shaft x 2 1/2"dia. x 2 1/2"L 167973 CMX07
In stock online.

$19.99

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Zinc, 1 3/4"shaft x 3 1/4"dia. x 2 7/8"L 167981 CMX08
In stock online.

$25.99

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Zinc, 2"shaft x 3 1/4"dia. x 2 7/8"L 167999 CMX09
In stock online.

$25.99

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Zinc, 2 1/4"shaft x 4 1/4"dia. x 3 3/4"L 252579 CMX10
In stock online.

$44.99

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Zinc, 2 1/2"shaft x 4 1/4"dia. x 3 3/4"L 332130 CMX11
In stock online.

$54.99

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Zinc, 2 3/4"shaft x 4 3/4"dia. x 3 5/8"L 593667 CMX12
In stock online.

$54.99

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Zinc, 3"shaft x 4 3/4"dia. x 3 5/8"L 593675 CMX13
In stock online.

$72.99

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Zinc, 3-1/2"shaft x 5 7/8" dia. x 3 7/8"L 11046539 CMX15
In stock online.

$77.99

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Zinc, 4"shaft x 6" dia. x 3 1/2"L 11046547 CMX17
In stock online.

$79.99

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Product Description

Designed for use in saltwater, these zinc anodes are composed of an alloy that meets Mil-Spec MIL-A-18001 for sacrificial anodes. This alloy is mostly zinc, but with measurable concentrations of cadmium (~0.1%) and aluminum (~0.25%). The additional cadmium causes the anode to erode from the surface inward, which causes a “sandblasted” appearance to the surface. When the anode is almost dissolved, it needs to be replaced. Features include a 100% circular radius, interlocking halves, stainless steel hardware and extra alloy around the fasteners.

 

Specs

REVIEW SNAPSHOT®

by PowerReviews
MartyrStreamlined Collar Zinc Anodes with Hex Head Screws
 
4.6

(based on 23 reviews)

Ratings Distribution

  • 5 Stars

     

    (15)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (19)
  • Protects well (14)
  • Visually pleasing (5)
  • Weather proof (5)

Cons

No Cons

Best Uses

  • Engine (4)
  • Outdoors (3)
    • Reviewer Profile:
    • Casual/ recreational (10), Advanced (9)
    • Was this a gift?:
    • No (19)

Most Liked Positive Review

 

Excellent Quality & Lasting Performance

Our company has been performing professional diving services in San Diego for 27 years. Our experience with the anode protection provided by Canada Metals is has been nothing short of exceptional. The manner in...Read complete review

Our company has been performing professional diving services in San Diego for 27 years. Our experience with the anode protection provided by Canada Metals is has been nothing short of exceptional. The manner in which the fasteners snug the anode together and the fit to the precise dismeter of the intened shafts is first class and assists in the easy to install. However, owners BEWARE, if you don't use a professional diver or should you decide to install yourself, you MUST ENSURE that the surface in which to mount the new anode is COMPLETLY clean and free of any marine scale, Otherwise any marine growth /scale can and does inped on the ability of the anode to connect or bond so as to enable proper protection for the intented host metal. Anodes (most commonly refered to as zincs, because most andoes are made of zinc), are designed to contain host metal material (zinc), in such a quality so as when the anode wear about the fastners or about 45-50 % worn, the amount of anode material is about equal to the amount of the anode material in the host metal. This is when it is time to replace the andode. Based on the rule of conductivity, electricity will take the least path of resistence and every path of resistence. Electrical current is created with metal is emersed into a chemical (salt water). This minute current called galvanic current, is dissapated thru the corrosion of the metal (the softest metal first). When attaching pure soft metal (zinc) to the host metal or bonding to the host metal vis attaching to the shaft, the current created will first direct it's corrosive actions toward the pure anode at least until there is no difference in the host metal content or anode content of the soft metal. Then, electrolysis (corrosion of the metal) will begin to effect the host soft metals. Most propellers contain the soft metal zinc because when the zinc is combined with the other metals which make up the propeller, the zinc gives the propeller the ability to prevent stress fractures while the propeller is experiencing tremendous stress under power. In other words, the soft zinc prevents the propeller blades from bending. If and when electrolysis starts to effect a propeller, the zinc molecules begin to disolve, leaving the propeller without the essential ingrediant to give the propellers the strength to withstand the stress under power. Electrolysis is not reversable but it can be controled and stopped by ensuring proper anode maintenance. Happy Boating. [@]

VS

Most Liked Negative Review

 

1" Shaft Zinc

Don't know if the copper ball bearing makes a difference.

Don't know if the copper ball bearing makes a difference.

Reviewed by 23 customers

Displaying reviews 1-10

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5.0

Fits the bill

By Happy Sailor

from Marblehead, MA

About Me Casual/ Recreational

Verified Buyer

Pros

  • Easy to Use

Cons

    Best Uses

      Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

      Appears well made, good edges and the 2 halves fit well together--easy application

      • Was this a gift?:
      • No
       
      4.0

      I purchase these zincs year after year

      By The Captain

      from Marblehead, MA

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Easy to Use
      • Protects Well

      Cons

        Best Uses

          Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

          Whoever named these products "Martyr" was a genius. These zincs provide excellent anodic protection of the shaft on my [inboard powered] sailboat. I use 2 zincs on the shaft, which is probably overkill. They are easy to remove at the end of the season.

          • Was this a gift?:
          • No
           
          4.0

          I would buy this again

          By Mike

          from Sandy hook

          About Me Advanced

          Verified Buyer

          Pros

          • Easy to Use

          Cons

            Best Uses

              Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

              Product fits well

              • Was this a gift?:
              • No
               
              4.0

              Just the way it should be nice helpful and congenial

              By No

              from 33950

              Verified Buyer

              Pros

              • Easy to Use
              • Protects Well
              • Visually Pleasing
              • Weather Proof

              Cons

                Best Uses

                • Outdoor
                • Quick Fix

                Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

                Fine

                • Was this a gift?:
                • No
                 
                5.0

                Best zincs

                By Noggin

                from Maryland

                About Me Advanced

                Verified Buyer

                Pros

                • Easy to Use
                • Protects Well

                Cons

                  Best Uses

                    Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

                    Durable even with neighboring battery charger on

                    • Was this a gift?:
                    • No
                     
                    5.0

                    Always needed but new version is coming

                    By Flying Tiger

                    from Rock Hall, MD

                    About Me Casual/ Recreational

                    Verified Buyer

                    Pros

                    • Easy to Use

                    Cons

                      Best Uses

                        Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

                        Sacrifical zinc

                        • Was this a gift?:
                        • No
                         
                        4.0

                        Zincs

                        By N/A

                        from Solomons, Maryland

                        About Me Casual/ Recreational

                        Verified Buyer

                        Pros

                        • Easy to Use
                        • Protects Well
                        • Visually Pleasing
                        • Weather Proof

                        Cons

                          Best Uses

                            Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

                            Wow, these West Marine zincs are really choc full of zinc.

                            • Was this a gift?:
                            • No
                             
                            5.0

                            Does the job

                            By Captain Pete

                            from New York

                            About Me Casual/ Recreational

                            Verified Buyer

                            Pros

                            • Easy to Use
                            • Protects Well
                            • Visually Pleasing
                            • Weather Proof

                            Cons

                              Best Uses

                              • Protect boat mechanicals from electrolysis

                              Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

                              Have used these for years. I believe they have given my boat the necessary protection. Very easy to install.

                              • Was this a gift?:
                              • No
                               
                              5.0

                              Plenty in stock

                              By Bruce

                              from Baltimore, MD

                              About Me Casual/ Recreational

                              Verified Buyer

                              Pros

                              • Easy to Use

                              Cons

                                Best Uses

                                  Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

                                  West Marine had plenty of various sizes in stock when other local marine supply stores were out.

                                  • Was this a gift?:
                                  • No
                                   
                                  5.0

                                  Excellent product, very durable....

                                  By Water Wings

                                  from Jax, Fl

                                  About Me Casual/ Recreational

                                  Verified Buyer

                                  Pros

                                  • Protects Well

                                  Cons

                                    Best Uses

                                    • Shaft Zinc

                                    Comments about Streamlined Collar Zinc Anodes with Hex Head Screws:

                                    • Was this a gift?:
                                    • No

                                    Displaying reviews 1-10

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