Staff Answer
Jun 19, 2026 - 10:54 AM
According to the manufacturer, the unique machining and thread quality does not back off. The cotter pin is still recommended as a backup.
Description states “They will never come loose.” Is it a cotter pin that keeps it from coming loose? Prop Tight Locking Nut 1.75
1.5” shaft, 1.25x7 thread
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Open Jun 13, 2026 - 07:04 PM
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Prop Tight Locking Nut 1.75
Prop-Tight is the superior propeller locking nut. It's designed to lock your propeller securely onto the shaft.
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