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Streamlined Aluminum Collar-Fits Shaft: 3", OD: 4 7/8", Length: 3 5/8", Screw Type: Hex

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MARTYR CMX13AL Streamlined Aluminum Collar-Fits Shaft: 3", OD: 4 7/8", Length: 3 5/8", Screw Type: Hex

Item #: CMX13AL by MARTYR

Brand: MARTYR

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$80.57

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Dimensions: 3" Inner Diameter x 4 3/4" Outer Diameter x 3 5/8" Length (76mm x 121mm x 92mm)

1" Inner Diameter x 2 1/8" Outer Diameter x 2 1/8" Length (25mm x 54mm x 54mm)
1 1/2" Inner Diameter x 2 1/2" Outer Diameter x 2 1/2" Length (38mm x 63mm x 63mm)
1 1/4" Inner Diameter x 2 5/8" Outer Diameter x 2 1/2" Length (32mm x 68mm x 62mm)
1 1/8" Inner Diameter x 2 1/8" Outer Diameter x 2 1/8" Length (29mm x 54mm x 54mm)
1 3/4" Inner Diameter x 3 1/4" Outer Diameter x 2 7/8" Length (44mm x 83mm x 73mm)
1 3/8" Inner Diameter x 2 1/2" Outer Diameter x 2 1/2" Length (35mm x 63mm x 63mm)
2" Inner Diameter x 3 1/4" Outer Diameter x 2 7/8" Length (51mm x 83mm x 73mm)
2 1/2" Inner Diameter x 4 1/4" Outer Diameter x 3 3/4" Length (57mm x 106mm x 95mm)
3 3/4" Length 2 1/2" Inside Diameter (95mm , 63mm)
3 5/8" Length , 2 3/4" Inside Diameter (92mm , 70mm)
3/4" Inner Diamter x 2 1/8" Outer Diameter x 2" Height (19mm x 52mm x 51mm)
3" Inner Diameter x 4 3/4" Outer Diameter x 3 5/8" Length (76mm x 121mm x 92mm)
3 1/2" Inner Diameter x 5 11/16" Outer Diameter x 3 3/4" Height (89mm x 145mm x 96mm)
Inner Diameter: 4" x Outer Diameter: 6" x Length: 3 1/2" (101mm , 152mm , 89mm)
7/8" Inner Diameter x 2 1/8" Outer Diameter x 2 1/16" Height (22mm x 54mm x 53mm)
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WARNING: This Product May Contain Chemicals Known to the State of California to Cause Cancer or Reproductive Harm. To Learn More Visit P65Warnings.ca.gov
Features
  • Aluminum alloy for use in saltwater or brackish water
  • Protect better than zinc anodes when used in saltwater
  • Meet stringent military specifications for sacrificial anodes
  • Interlocking halves with hex-head machine screw fasteners
  • Extra alloy around fasteners

Best Use

Prop/Shaft

Water Type

Salt Water

Attachment Method

Screw-On

Type

Replacement Anode Only

Dimensions

3" Inner Diameter x 4 3/4" Outer Diameter x 3 5/8" Length (76mm x 121mm x 92mm)

Material

Aluminum

Shape

Prop Nut

Product Overview
If you use your boat in saltwater or in brackish water, these aluminum mil-spec anodes are your best choice for protecting your prop shaft and prop against galvanic corrosion. Used in saltwater, aluminum anodes protect better and last longer than zinc. Used in brackish water, aluminum anodes are superior to zinc which can passivate" and not work at all or magnesium anodes which corrode too rapidly. Aluminum anodes are also lighter than zinc and contain no cadmium which is a substance of environmental concern. Offered with hex-head stainless steel machine screws.