Zinc Collar Nut Anode
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SEA SHIELD MARINE Zinc Collar Nut Anode
The Sea Shield Marine Zinc Collar Nut Anode is a high-purity sacrificial zinc anode engineered to protect the propeller shaft nut and surrounding underwater drive components from galvanic corrosion. This zinc nut anode is manufactured from military-specification zinc alloy meeting MIL-A-18001 standards, delivering consistent, long-lasting cathodic protection throughout a full boating season.
The precision-machined collar design ensures a secure, vibration-resistant fit that stays in place at all operating speeds. Particularly effective for vessels moored in marinas with mixed-metal environments or areas with stray electrical current. Replace annually or when the anode is depleted to 50% of its original mass for optimal corrosion protection. An essential component for any vessel with bronze or stainless steel underwater running gear operating in saltwater or brackish water.
Key Features
- Shaft Nut Anode
- Military-Spec Zinc Alloy (MIL-A-18001)
- Saltwater / Brackish Water
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