Looking for the best propeller nuts to keep your boat or drone running smoothly? We’ve curated a list of 10 top-quality propeller nuts designed for durability, precision, and easy installation to enhance your performance and safety.
Propeller nuts are essential for keeping your prop secure and your boat or drone running smoothly. High-quality kits ensure a tight fit and prevent slippage during use. Whether you need Marine Prop Nut Kits or FPV M5 Nuts, the right choice boosts performance and safety.
Expertly designed kits make installation fast and dependable. Durable materials and precise fits mean less downtime and more confidence on the water or in the air.
List of Top 10 Propeller Nuts
| Image | Title | Best For | Price |
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18-3716 Marine Prop Nut Kit for Johnson/Evinrude Motor and OMC (40-140 HP) – Includes Prop Nut, Prop Spacer & Cotter Pin, Replaces GLM 22350, Evinrude/Johnson 175267, Mallory 9-73952, OMC 175267 |
This kit is perfect for anyone who wants a safe, steady, and strong hold on their boat prop. It’s great for boat owners who want simple, fast, and worry‑free upkeep. |
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30pcs FPV M5 Nuts CW Self-Locking Lock Nuts Flanged Nylon Insert Aluminum Alloy for FPV Parts Quadcopter Motor Prop Adapter RC Racing Drone (6 Colors) |
This product is perfect for drone enthusiasts who want to customize and secure their FPV drones. Whether you’re building or upgrading, these self-locking nuts ensure your props stay tight during flight. |
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IFERLA Outboard Prop Hub Nut Kit Fit for Most Johnson/Evinrude Motor, Upgrade Boat Propeller Nut Kits – Includes Prop Nut/Cotter Pin/Prop Spacer, Replaces: OMC 175267/Sierra 18-3716 |
This kit is perfect for boat owners who want a quick, safe, and solid way to keep their prop in place. It’s great for anyone who wants easy installs and strong parts that last. |
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MerCruiser Alpha Bravo Prop Propeller Nut Tab Locking Washer Kit Mercury Mariner |
This kit is perfect for boat owners who want a safe, steady, and long‑lasting prop. It’s great for anyone who wants an easy fix that keeps their prop tight and their ride smooth. |
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5008 Prop Nut Kit Brass Boating Accessories for 1″ & 1-1/8″ Inboard Propeller Shaft |
This kit is perfect for boat owners who want a tight, secure prop that stays in place. It’s great for anyone who needs a strong, easy, and reliable fix for a 1″ or 1-1/8″ shaft. |
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Sierra International 18-3716 Marine Prop Nut Kit for Johnson/Evinrude Motor , white |
This kit is great for boat owners who want a fast and easy way to keep their prop secure. It is also ideal for anyone who needs a simple, ready-to-use set that fits the right Johnson or Evinrude motor. |
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18-3702 Marine Prop Nut Kits for Mercury Prop Nut Kit 35-70 HP Outboard Motor, Outboard Propeller Nuts Fit for Mercury Engines 11-69578A1,11-69578T1,11-69578Q, Nuts with 2 Lock Washers for Boat Parts |
This kit is perfect for boat owners who want a strong, easy‑fit prop nut that keeps their Mercury outboard running smooth. It’s great for anyone who wants a simple, reliable, and long‑lasting fix. |
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Marine Prop Nut and Lock Tab Washer Kit 18-3702 Fit for 30 hp-60 hp Mercury/Mariner Outboard Motor Engines, Outboard Propeller Nut Retainer Locking Washer Kit Replacement for Mercury 11-69578T1 |
This kit is perfect for boat owners who want a fast, safe, and easy way to keep their outboard prop secure. It’s great for anyone who needs a strong, simple, and reliable fit for a 30–60 hp Mercury or Mariner engine. |
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SRIAOO 18-3702 Prop Nut Kit, Propeller Nut & Tab Washer Set, Compatible with Mercury/Mariner 30-60HP Outboard Engines, Replaces 11-69578A1 11-69578Q1 11-69578T1 GLM 21260 Mallory 9-73961 |
This kit is perfect for boat owners who want safe, steady, and strong propeller performance. It’s great for anyone who needs a simple, reliable fix for worn or loose prop hardware. |
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20Pcs M5 Motor Screw Props Nut Flange Nut Propeller Adapter Quick Release Wrench Tool CW CCW for RC FPV Racing Drone 2204 2205 2306 Motor |
This is perfect for RC drone fans who want fast, safe, and easy prop changes. It suits anyone who wants strong, light, and secure nuts that keep their props tight in the air. |
Detailed Reviews
Find the top propeller nuts that match performance and value.
Every nut is designed so it stays tight on your prop.
We tested each one to show the best fit for your boat.
Read on to choose the right nut and sail with confidence.
1. 18-3716 Marine Prop Nut Kit for Johnson/Evinrude Motor and OMC (40-140 HP) – Includes Prop Nut, Prop Spacer & Cotter Pin, Replaces GLM 22350, Evinrude/Johnson 175267, Mallory 9-73952, OMC 175267

The 18-3716 Marine Prop Nut Kit keeps your prop tight and safe. It fits many Johnson/Evinrude motors with ease. It meets strong OEM standards for trust and performance.
It replaces GLM 22350 and other common models. It stops shake and slip on the water. It gives your prop a firm, steady hold.
You get a prop nut, prop spacer, and cotter pin. You get simple, fast DIY use.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for anyone who wants a safe, steady, and strong hold on their boat prop. It’s great for boat owners who want simple, fast, and worry‑free upkeep.
Ready to Purchase?
2. 30pcs FPV M5 Nuts CW Self-Locking Lock Nuts Flanged Nylon Insert Aluminum Alloy for FPV Parts Quadcopter Motor Prop Adapter RC Racing Drone (6 Colors)

These 30pcs FPV M5 Nuts are perfect for RC racing drones. They work with all 5mm shaft motors, fitting popular brands like ARRIS, DYS, and EMAX. Each nut weighs just 0.41g, keeping your drone light and fast.
Made from aluminum alloy, these nuts are strong and durable. The self-locking design ensures your props stay secure during flight, so you can focus on racing.
You get 30 nuts in 6 colors, letting you customize your drone’s look. They’re easy to use and perfect for upgrading your quadcopter or motor prop adapter.
| Pros | Cons |
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Perfect For:
This product is perfect for drone enthusiasts who want to customize and secure their FPV drones. Whether you’re building or upgrading, these self-locking nuts ensure your props stay tight during flight.
Ready to Purchase?
3. IFERLA Outboard Prop Hub Nut Kit Fit for Most Johnson/Evinrude Motor, Upgrade Boat Propeller Nut Kits – Includes Prop Nut/Cotter Pin/Prop Spacer, Replaces: OMC 175267/Sierra 18-3716

The IFERLA prop hub nut kit gives your boat a strong and simple upgrade. It fits many Johnson, Evinrude, and OMC motors with ease.
The kit has a prop nut, a cotter pin, and a prop spacer. Each part is made from tough stainless steel. It keeps your prop safe and secure.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for boat owners who want a quick, safe, and solid way to keep their prop in place. It’s great for anyone who wants easy installs and strong parts that last.
Ready to Purchase?
4. MerCruiser Alpha Bravo Prop Propeller Nut Tab Locking Washer Kit Mercury Mariner

This kit secures your propeller fast. It fits many MerCruiser models. It keeps the shaft safe.
Use the new nut and washer to stop loose parts. It saves repair costs.
Installation is simple. Protect your motor today.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for boat owners who want a safe, steady, and long‑lasting prop. It’s great for anyone who wants an easy fix that keeps their prop tight and their ride smooth.
Ready to Purchase?
5. 5008 Prop Nut Kit Brass Boating Accessories for 1″ & 1-1/8″ Inboard Propeller Shaft

This prop nut kit keeps your boat safe. It holds the prop tight. It works with many inboard boats.
It fits 1″ and 1-1/8″ shafts with ease. It replaces old parts fast.
The brass build is strong and resists rust. The kit includes a nut, key, and pin.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for boat owners who want a tight, secure prop that stays in place. It’s great for anyone who needs a strong, easy, and reliable fix for a 1″ or 1-1/8″ shaft.
Ready to Purchase?
6. Sierra International 18-3716 Marine Prop Nut Kit for Johnson/Evinrude Motor , white

The Sierra 18-3716 Prop Nut Kit keeps your motor safe and tight. It fits well and holds strong. It gives you simple, steady use on the water.
You get a prop nut, cotter pin, and spacer in one kit. Check your part number to make sure it fits.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is great for boat owners who want a fast and easy way to keep their prop secure. It is also ideal for anyone who needs a simple, ready-to-use set that fits the right Johnson or Evinrude motor.
Ready to Purchase?
7. 18-3702 Marine Prop Nut Kits for Mercury Prop Nut Kit 35-70 HP Outboard Motor, Outboard Propeller Nuts Fit for Mercury Engines 11-69578A1,11-69578T1,11-69578Q, Nuts with 2 Lock Washers for Boat Parts

The 18-3702 marine prop nut kit gives your Mercury motor a strong, steady hold. It fits many 35–70 HP engines and keeps your prop secure on every ride.
The nut and two lock washers are made from tough alloy steel. They resist rust and stay tight, even after long use.
It installs fast. It fits well. It lasts.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for boat owners who want a strong, easy‑fit prop nut that keeps their Mercury outboard running smooth. It’s great for anyone who wants a simple, reliable, and long‑lasting fix.
Ready to Purchase?
8. Marine Prop Nut and Lock Tab Washer Kit 18-3702 Fit for 30 hp-60 hp Mercury/Mariner Outboard Motor Engines, Outboard Propeller Nut Retainer Locking Washer Kit Replacement for Mercury 11-69578T1

The Marine Prop Nut and Lock Tab Washer Kit keeps your engine safe. It holds the prop tight. It stops unwanted slip.
This kit fits 30–60 hp Mercury/Mariner engines. It swaps in fast.
The parts use strong, marine‑grade material. They fight rust with ease. They last a long time.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for boat owners who want a fast, safe, and easy way to keep their outboard prop secure. It’s great for anyone who needs a strong, simple, and reliable fit for a 30–60 hp Mercury or Mariner engine.
Ready to Purchase?
9. SRIAOO 18-3702 Prop Nut Kit, Propeller Nut & Tab Washer Set, Compatible with Mercury/Mariner 30-60HP Outboard Engines, Replaces 11-69578A1 11-69578Q1 11-69578T1 GLM 21260 Mallory 9-73961

The SRIAOO 18-3702 Prop Nut Kit keeps your prop secure. It fits Mercury/Mariner 30–60HP engines. It helps stop the nut from coming loose.
The kit uses strong metal and tab washers for a tight hold. It is simple to install and built to last.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for boat owners who want safe, steady, and strong propeller performance. It’s great for anyone who needs a simple, reliable fix for worn or loose prop hardware.
Ready to Purchase?
10. 20Pcs M5 Motor Screw Props Nut Flange Nut Propeller Adapter Quick Release Wrench Tool CW CCW for RC FPV Racing Drone 2204 2205 2306 Motor

This set gives your drone a strong and safe hold. It keeps your props tight in every flight.
The M5 lock nuts are light and strong. They fit many brushless motors with ease. They stay firm so your props do not slip.
The quick release wrench makes changes fast. It works with 6mm, 8mm, and 10mm hex nuts. It saves time and keeps your setup simple.
| Pros | Cons |
|---|---|
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Perfect For:
This is perfect for RC drone fans who want fast, safe, and easy prop changes. It suits anyone who wants strong, light, and secure nuts that keep their props tight in the air.
Ready to Purchase?
Buying Guide
Good propeller nuts keep your ride smooth. Strong materials stop slip and shake. Right sizing makes every trip feel safe.
Buying the best propeller nuts should feel simple. You want parts that fit well, last long, and give you peace of mind. A good kit makes your boat or drone feel steady and ready.
- Fit: Make sure the nut matches your motor model or shaft size. A tight fit stops slip. It also keeps your setup safe.
- Material: Pick steel, brass, or aluminum for long life. These materials fight rust. They stay strong in tough use.
- Locking Style: Choose self‑locking or tab‑locking nuts. They hold firm in motion. They stop the nut from backing off.
- Weight: For drones, pick light nuts. Light parts help speed. They also help smooth flight.
- Ease of Use: Look for kits with spacers and pins. They make setup fast. They also make swaps simple.
- Durability: Strong builds last longer. They cut downtime. They keep your prop steady.
- Brand Match: Check if the nut replaces your OEM part. This avoids guesswork. It also ensures a clean fit.