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Underwater Hardware

Marine Underwater Hardware

For a complete source of underwater hardware, look no further than Millers Island Propeller. We stock and distribute struts, rudders, couplings, packing boxes and other underwater hardware. In addition, Millers Island Propeller can custom build stainless steel struts and rudders to your specifications, and can also cast reproductions of discontinued struts or rudders.

Millers Island Propeller offers twice-weekly pick-up and delivery to marinas and marine businesses.


Dahmer Marine Hardware:



Rudder Arms

Rudder Ports


Prop Tip...

Propeller Tuning

Having a finely tuned propeller will increase fuel efficiency.

Latest News

Holiday Hours

Posted: December 15 2021

Millers Island Propeller will be closed Thursday, December 16, 2021 and will reopen Wednesday, January 5, 2022. Merry Christmas and Happy New Year!

Ellis Propeller

Posted: March 21 2014

Now manufacturing hardware from Ellis Propeller


Posted: February 17 2014

Manufacturing propellers and marine hardware

Photo Gallery

Rudder ArmsRudder PortsStrutsChesapeake 4 propellersChesapeake 3 propellers