Streamline Shaft Anode Collars For Boat Propeller Shaft Protection, Zinc One And One Quarter Inch Diameter With Easy Install Deep Slotted Stainless Screws And O Ring Retention To Prevent Galvanic Corrosion

Zinc Shaft Anode Collars for Boat Propeller 1-1/4"
✔️ Zinc 1-1/4" diameter, deep-slotted stainless screws, O-ring retention

Streamline shaft anode collars protect boat propeller shafts from galvanic corrosion by providing a sacrificial zinc layer around the shaft. These collars shield propeller and stern gear in saltwater environments and are sized for 1-1/4" shafts.

✅ Shaft diameter: 1-1/4" (31.75 mm)
✅ Material: Zinc
✅ Screws: 2 deep-slotted stainless machine screws for maximum torque
✅ O-ring retention to keep screws secure and prevent galvanic contact

💡 What is a shaft anode collar and how does it protect a boat propeller shaft?

In plain language, it acts as a sacrificial barrier that absorbs corrosion in seawater, protecting the shaft and connected gear.

• Helps prevent galvanic corrosion on metal components by sacrificing zinc
• Designed for 1-1/4" shafts; easy installation with two deep-slotted screws
• O-ring retention keeps screws from loosening during operation
• Suitable for marine propeller assemblies to extend service life

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