Propeller lock nut for boats

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Propeller lock nut for boats

Discover our propeller lock nuts for boats. These anti-theft nuts replace the standard propeller nut and make it much harder to remove the propeller without the dedicated tool.

Protecting your boat propeller from theft

A propeller lock nut is designed with a special profile or cover that requires a specific key to remove. Without this key, stealing the propeller becomes time-consuming and risky for the thief.

On outboard engines and sterndrives, the propeller is exposed and often expensive. Fitting a lock nut is a simple way to secure your propeller when the boat is moored or on the trailer.

Choosing the right propeller lock nut

To select the right lock nut, you must consider shaft type, thread size and engine brand. Some kits include washers and the matching key tool.

The models offered are suitable for many popular marine engines from brands such as VOLVO, YAMAHA, SUZUKI, MERCURY and MERCRUISER.

Propeller lock nuts selected by DAM Marine

As a specialist in boat engine parts, DAM Marine offers robust lock nuts designed for long-term use in saltwater environments.

By choosing your boat propeller lock nut from DAM Marine, you get an easy, effective solution to protect your propeller investment.

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8 item(s)

KIT ECROU ANTIVOL HELICE SUZUKI - YAMAHA - BRP

RÉF. 74040 | MCGARD

Protect your outboard motor or sterndrive propeller from theft!

Simply replace one of the original nuts with a safety nut.

You can use the Mc Guard propeller lock for the following bases:

- Honda 75CV and more

- Suzuki 40CV and more

- Yamaha 115CV and more

- Johnson/Evinrude 150HP and up (4-stroke)

Z-drive:

- Yamaha

Kit including:

- 1 anti-theft nut, M18x1.5 thread

- 1 key

- 1 washer

- 1 plastic cover

- 1 code card

Additional information:

- Thread: M18x1.5

- Total length: 26 mm

- Key opening: 27 mm

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€108.00 VAT included

€90.00 VAT excluded

MERCURY PROPELLER LOCK NUT KIT - MERCRUISER

RÉF. 74039 | MCGARD

Protect your outboard or inboard motor propeller from theft.

Simply replace one of the original nuts with a safety nut.

You can use the Mc Guard propeller lock for the following bases:

- Mercury/Mariner 70HP and up (e.g. 225HP 4-stroke up to 2005)

- Mercury Bigfoot 40HP, 50HP, 60HP (4-stroke)

- Optimax 75CV and more

- Verado 135CV and more

- Johnson/Evinrude 150HP and up (2-stroke)

Inboard Engine:

- Mercruiser Alpha I, Bravo I (including X & XR), TRS, Vazer, OMC Cobra and King Cobra

Kit including:

- 1 anti-theft nut, ¾ - 16" thread

- 1 key

- 1 washer

- 1 plastic cover

- 1 code card

Additional information:

- Thread: 3/4 x 16

- Total length: 26 mm

- Key opening: 1-1/16

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€108.00 VAT included

€90.00 VAT excluded

SUZUKI ENGINE ANTI-THEFT NUT KIT - MERCURY

RÉF. 74036 | MCGARD

Protect your outboard motor against theft!

Simply replace one of the original nuts with a McGard security nut.

You can use the McGard anti-theft device for the following engines:

- Mercury/Mariner 40HP and up (2-stroke)

- Mercury 25HP and more (4-stroke)

- Suzuki 150 - 300CV

The 74036 anti-theft bolt set contains:

- 1 anti-theft nut, ½-20 thread

- 1 key

- 1 code card

Additional information:

- Thread: 1/2 x 20

- Total length: 19 mm

- Key opening: 16 mm

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€57.60 VAT included

€48.00 VAT excluded

ENGINE ANTI-THEFT NUT KIT YAMAHA - SUZUKI - HONDA

RÉF. 74037 | MCGARD

Protect your outboard motor against theft!

Simply replace one of the original nuts with a McGard security nut.

You can use the McGard anti-theft device for the following engines:

- Yamaha 40HP and more (2-stroke)

- Yamaha 30HP and more (4-stroke)

- Honda 40CV and more

- Suzuki 25-140CV (from 2005)

Game 74037 contains:

- 1 anti-theft nut, M12x1.25 thread

- 1 key

- 1 code card

Additional information:

- Thread: M12x1.25

- Total length: 19 mm

- Key opening: 16 mm

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€57.60 VAT included

€48.00 VAT excluded

SUZUKI ENGINE ANTI-THEFT NUT KIT - BRP

RÉF. 74054 | MCGARD

Protect your outboard motor against theft! The procedure is as follows:

Simply replace one of the original nuts with a McGard security nut.

You can use the McGard anti-theft device for the following engines:

- Nissan 25CV and more

- Suzuki 25 - 140CV (until 2004)

- Tohatsu 25HP and more

- Johnson/Evinrude 40HP and up (4-stroke)

Game 74054 contains:

- 1 anti-theft nut, M12x1.75 thread

- 1 key

- 1 code card

Additional information:

- Thread: M12x1.75

- Total length: 19 mm

- Key opening: 16 mm

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€90.00 VAT included

€75.00 VAT excluded

VOLVO DP-SM PROPELLER ANTI-THEFT NUT KIT

RÉF. 74057 | MCGARD

Protect your inboard engine's DUOPROP propeller against theft!

Simply replace one of the original nuts with a safety nut.

You can use the Mc Guard propeller lock for the following bases:

- Volvo DP-SM (Duo-Prop)

The kit includes:

- 1 anti-theft nut, M22x2.0 thread

- 1 key

- 1 washer

- 1 plastic cover

- 1 code card

Additional information:

- Thread: M22x2.0

- Total length: 26 mm

- Key opening: 30 mm

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€114.00 VAT included

€95.00 VAT excluded

KIT ECROU ANTIVOL EMBASE YAMAHA

RÉF. 74059 | MCGARD

Anti-theft device for Yamaha F115 - F350 base plate with L or X length barrel except F150TXR.

Also suitable for almost all Yamaha V4 - V6 2-stroke engines.

Simply replace the drift anode mounting bolt on the base leg with the MCguard kit to ensure effective protection against theft.

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€96.00 VAT included

€80.00 VAT excluded

KIT ECROU ANTIVOL HELICE MERCRUISER SSM

RÉF. 74058 | MCGARD

Protect your Mercruiser engine propeller from theft.

Simply replace one of the original nuts with a McGard security nut.

You can use the McGard propeller lock for the following drives:

MerCruiser III SSM, IV SSM, V SSM, VI SSM, NXT

The kit contains:

1 anti-theft nuts, 1-14 thread

1 key

1 washer

1 plastic cover

1 code card

Livraison express → Tuesday 02 June

Livraison classique → Thursday 04 June

Commandez dans les

00 h 00 m 00 s

Disponible

€108.00 VAT included

€90.00 VAT excluded

8 item(s)

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Propeller lock nut for boats

Protecting your boat propeller from theft

Choosing the right propeller lock nut

Propeller lock nuts selected by DAM Marine

8 item(s)

KIT ECROU ANTIVOL HELICE SUZUKI - YAMAHA - BRP

MERCURY PROPELLER LOCK NUT KIT - MERCRUISER

SUZUKI ENGINE ANTI-THEFT NUT KIT - MERCURY

ENGINE ANTI-THEFT NUT KIT YAMAHA - SUZUKI - HONDA

SUZUKI ENGINE ANTI-THEFT NUT KIT - BRP

VOLVO DP-SM PROPELLER ANTI-THEFT NUT KIT

KIT ECROU ANTIVOL EMBASE YAMAHA

KIT ECROU ANTIVOL HELICE MERCRUISER SSM