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Zinc Nuts and Collars in Special High Grade Zinc - Boat Component Protection

Zinc Nuts and Collars in Special High Grade Zinc

The Practical Answer To Electrolysis

The use of Zinc Nuts and Collars on or near the underwater fittings of your boat or water craft absorbs the corrosive actions of electrolysis which normally attacks brass or bronze fittings. The fitting of Zinc Nuts and Collars to your boat's fittings will greatly enhance their working life and provide a dual protection of Safety & Economy.


Zinc Nut showing internal showing propeller point for snug fitting.


 

Zinc Nut offered to Propeller Nut in operational mode.



Proper Size Is Important:

Zinc Nuts are designed to fit snugly against the points of standard Propeller Nuts. For best results, compare the point-to-point diameter of the propeller nut with the inside diameter of the Zinc Nut. In remote cases some machining to a smaller size may be desired for a closer fit of the Zinc Nut.



Zinc Nut Sizes:

Part
Number
Zinc Nut
Number
Outside Dimension Inside
Dimension
Cavity
Length
ZNA A 2.75" 2.0" 2.875"
ZNB B 3.0" 2.25" 3.0"
ZN1 - Short 1 Call Call Call
ZN1 - Long 1 3.375" 2.5" 3.625"
ZN2 2 3.75" 2.875" 4.0"
ZN3 3 4.125" 3.25" 4.0"
ZN4 4 4.625" 3.75" 4.5"
ZN5 5 5.25" 4.25" 5.0"
ZN6 6 5.625" 4.625" 5.5"
ZN7 7 6.0" 5.0" 6.0"
ZN8 8 6.625" 5.5" 5.5"
ZN9 9 7.125: 6.0" 6.75"
ZN10 10 7.75" 6.5" 7.0"
ZN11 11 8.25" 7.0" 8.25"
ZN11 - S 11 8.25" 7.0" 9.5"
ZN12 12 8.75" 7.5" 9.0"
ZN13 13 11.0" 8.75" 9.5"
ZN14 14 11.5" 9.5: 9.5:
ZN15 15 12.75" 10.75" 10.5"
ZN17 17 14.0" 12.0" 11.0"
ZN18 18 16.25" 13.5" 9.75"
Larger Zinc Nuts available as special order

 


Technical Specifications:

Casting Process: Green Sand Mold

Metal: Special High Grade Zinc

Sizes: Standard sizes (A, B - 18) usually available. Custom sizes to special order

Please do not hesitate to use the Contact Us page to make an inquiry, or ask any specific questions you may have regarding your casting needs.