Prop shaft thread dimensions

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airshot

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Perrysburg Ohio
LOCATION
Perrysburg Ohio
My old Minn Kota model 65, 36# thrust trolling motor broke the prop and prop nut ( plastic). Figured on replacing the nut with an aluminum or SS nut. Search d everywhere and can't find the thread specification on the shaft, not even on the MK website. Must want it kept a secret....anyone know what the thread spec might be ? 3.25" dia motor housing.....thanks
 
Do you have the broken nut? Do you have a set of calipers? Measure the shaft and count the threads per inch.
 

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