Cruising Solutions
FlexOfold Part Propeller Nut 7/8" - 9 UNC ø40 Shaft nut short
FlexOfold Part Propeller Nut 7/8" - 9 UNC ø40 Shaft nut short
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FlexOfold Propeller Nut 7/8"-9 UNC short version is designed for Ø40mm propeller shafts and marine propulsion systems requiring precise and secure fastening. This FlexOfold Propeller Nut ensures proper thread engagement between the propeller and shaft, helping maintain alignment, torque retention, and dependable performance on the water.
Manufactured for compatibility with FlexOfold folding propeller assemblies, this short shaft nut features a 7/8"-9 UNC thread specification for accurate fitment on Ø40mm shafts. Using the correct FlexOfold Propeller Nut is essential for safe operation, as proper fastening reduces the risk of loosening caused by vibration, load variation, and continuous marine use.
Built for durability in both saltwater and freshwater environments, this marine-grade fastening component is designed to withstand corrosion, mechanical stress, and long-term exposure to harsh boating conditions. The FlexOfold Propeller Nut is suitable as a direct replacement part or as a spare kept onboard for routine maintenance and servicing.
Selecting the proper propeller shaft hardware is critical to overall drivetrain reliability. With its precision threading and compatibility with FlexOfold systems, this short propeller nut provides secure and consistent fastening performance for recreational and commercial vessels.
Specifications:
- Thread: 7/8"-9 UNC
- Shaft Diameter: Ø40mm
- Type: Short propeller shaft nut
- Application: Marine / boat propeller installation
Fitment check before ordering
FlexOfold Part Propeller Nut 7/8" - 9 UNC ø40 Shaft nut short is a model-specific propeller part. Match the part to the propeller already on the boat before ordering.
| Field | What to verify |
|---|---|
| Part family | Nut, washer, or locking hardware |
| Fitment clue from this page | Match shaft mount. |
| Check on your propeller | Blade count, shaft or saildrive family, hub markings, current part number, and water type for anodes. |
| If unsure | Send photos of the propeller open and closed, the old part, and any markings before ordering. |
Parts FAQ
Are FlexOfold parts interchangeable across propeller families?
No. Many anodes, cover plates, service kits, shock absorbers, nuts, and washers depend on blade count, shaft/saildrive family, and part number.
Should I buy parts before haulout?
Yes, if the part number is known. For unknown parts, gather photos and markings before haulout so the right parts can be ready.
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