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Screw nuts – secure fastening for engine systems

Screw nuts are fundamental components for assembling and securing mechanical structures, especially in engine and industrial systems. Whether used in combustion engines, marine machinery or stationary equipment – high-quality screw nuts ensure reliable fastening under high loads, vibrations and temperature fluctuations. They are essential for safety, serviceability and long-term performance.

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UNION NUT - 628/48/6/05062358 suitable for MWM & Deutz engines

UNION NUT - 628/48/6/05062358 suitable for MWM & Deutz engines

Union nut for Reliable EnginesDiscover our union nut (comparison number: 628/48/6/05062358), an indispensable OEM spare part that ensures optimal functionality for engines. This product is crucial both for your machines and for maintenance. Weighing only 0.018 kg, the union nut showcases the highest precision and performance.Suitable for Deutz - An Important ComponentThis union nut is specifically designed to fit Deutz engines and offers the performance that your equipment needs. Support the smooth operation of your machines with a spare part that meets strict quality standards. OEM spare parts like this not only provide reliability but also durability in application.

Sale price: €8.21Regular price:€9.13(10% saved)
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UNION NUT - 628/21/39/05065269 suitable for MWM & Deutz engines

UNION NUT - 628/21/39/05065269 suitable for MWM & Deutz engines

Precision Union Nut: Reference Number 628/21/39/05065269 The union nut with the reference number 628/21/39/05065269 is an OEM spare part of the highest quality, providing reliability and stability. Weighing only 0.196 kg, this product is ideal for use in stationary applications and offers the perfect combination of functionality and durable construction.Integration into Deutz Engines This component is suitable for Deutz engines and ensures that your machines are always operational. The premium choice of materials and craftsmanship ensures that the union nut easily withstands special loads and prevents premature wear.

Sale price: €10.12Regular price:€11.25(10% saved)
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UNION NUT - 604043730220 suitable for MWM & Deutz engines

UNION NUT - 604043730220 suitable for MWM & Deutz engines

Union nut with reference number 604043730220Discover the union nut equipped with the reference number 604043730220. This technically sophisticated product is suitable for MWM & Deutz engines. It belongs to the category of nuts and ensures that all applications function with the highest precision. Weighing only 0.084 kg, the union nut impresses with its robust construction and attention to detail.

Sale price: €3.16Regular price:€3.51(10% saved)
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UNION NUT - 628/35/135/05034572 suitable for MWM & Deutz engines

UNION NUT - 628/35/135/05034572 suitable for MWM & Deutz engines

Discover the Union Nut for Reliable ApplicationsThe union nut with the comparison number 628/35/135/05034572 is an important component for various engine applications. This product is part of the OEM spare parts and meets high standards in marine and stationary technology. Weighing only 0.012 kg, the union nut is optimally chosen for use to support the functionality of your engines.Suitable for MWM & Deutz EnginesThe OEM spare part is suitable for MWM & Deutz, ensuring smooth operation in the associated engines. The robust construction of the union nut supports the performance of your machines under demanding conditions, thus contributing to the efficiency of your operations.

Sale price: €0.78Regular price:€0.87(10% saved)
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HEXAGON NUT - 628/34/14/05029666 suitable for MWM & Deutz engines

HEXAGON NUT - 628/34/14/05029666 suitable for MWM & Deutz engines

Hexagon nut - Precision ensured for your requirementsDiscover the hexagon nut specifically designed for the demands of machines and engines. Our hexagon nut with the reference number 628/34/14/05029666 belongs to the group of nuts and offers outstanding precision. This product is suitable for applications in demanding areas such as marine applications as well as stationary use.Perfect fit for various Deutz enginesThis hexagon nut is compatible and well-suited for Deutz engines of series 331, 538, and 528. It is also excellent for the specific engine types 12V331TC92, 16V538TB93, and SBA8M528. Thanks to the special manufacturing technique, our hexagon nut is one of the best parts on the market. The use of OEM replacement parts ensures the optimal function and efficiency of your engines.

Sale price: €0.59Regular price:€0.65(9% saved)
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HEXAGON NUT - 640/43/7/05017915 suitable for MWM & Deutz engines

HEXAGON NUT - 640/43/7/05017915 suitable for MWM & Deutz engines

Robust Hexagon nut for Reliable Engine ApplicationsDiscover the Hexagon nut that is the perfect addition to your engines. This OEM replacement part is exactly what you need to operate your machines optimally. The comparison number 640/43/7/05017915 indicates the compatibility of this product and ensures that it consists of precisely manufactured parts.Tested and Fitting for DeutzOur Hexagon nut is specifically designed to fit Deutz engines and demonstrates the high quality standard of OEM replacement parts. Weighing only 0.002 kg, you can rely on efficient and straightforward handling and installation. Trust in the durability and reliability of this important component that supports your engine operation.

Sale price: €0.18Regular price:€0.20(10% saved)
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UNION NUT - 628/16/24/05034836 suitable for MWM & Deutz engines

UNION NUT - 628/16/24/05034836 suitable for MWM & Deutz engines

Union Nut – Your Solution for EnginesDiscover our product, the Union nut with the comparison number 628/16/24/05034836. This reliable OEM spare part has been specifically designed for applications in engine technology. Weighing only 0.018 kg, it is a perfect addition to your mechanics, offering easy handling and high efficiency.Suitable Union Nut for MWM & Deutz EnginesThe Union nut is optimally suited for MWM & Deutz engines. As an OEM spare part, it provides the highest quality and reliability. With us, you will exclusively receive top-quality products that meet the demands of the industry and ensure perfect compatibility with your engine. Rely on the outstanding features of this Union nut.

Sale price: €1.12Regular price:€1.25(10% saved)
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UNION NUT - 3105F11 suitable for MWM & Deutz engines

UNION NUT - 3105F11 suitable for MWM & Deutz engines

Effective Product: Union Nut 3105F11 for EnginesDiscover the union nut with the comparison number 3105F11, an essential product in the field of engine technology. This OEM replacement part offers optimal fit and safety in application. Weighing only 0.015 kg, this union nut has been specifically shaped to ensure high functionality in your engine.

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HEXAGON NUT - 358/102/30 suitable for MWM & Deutz engines

HEXAGON NUT - 358/102/30 suitable for MWM & Deutz engines

Premium Hexagon Nut – Your Reliable Replacement PartDiscover the Hexagon nut with the comparison number 358/102/30 – an indispensable replacement part designed specifically for the sustainability needs of your engine applications. This nut belongs to the article group Nuts and weighs 0.29 kg, ensuring stability and reliability for various applications.Suitable for Deutz Engines: Optimal FitOur Hexagon nut is suitable for Deutz engines and meets the high standards of quality and fit that you expect from replacement parts. This product also supports engines from other renowned manufacturers such as MWM, Mercedes-Benz, and MAN. With this Hexagon nut, you will noticeably optimize the performance of your engines.

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HEXAGON NUT - 350/101/6 suitable for MWM & Deutz engines

HEXAGON NUT - 350/101/6 suitable for MWM & Deutz engines

Your Reliable Product: Hexagon Nut 350/101/6Choose the hexagon nut with the comparison number 350/101/6, suitable for Deutz engines. This product is an essential OEM spare part that excels in high-quality applications. Whether used in diesel or gas engines, the hexagon nut ensures a long-lasting and smooth operation of your engines through its precise execution.Strong Quality – Suitable for Deutz EnginesThe nuts product group includes many excellent components, of which the hexagon nut weighing 0.65 kg is among the best. Each of the OEM spare parts is carefully selected, so you can expect high quality. Rely on components that fit perfectly and correspond to the comparison number 350/101/6 when maintaining your engines.

HEXAGON NUT - 358/101/12 suitable for MWM & Deutz engines

HEXAGON NUT - 358/101/12 suitable for MWM & Deutz engines

Robust Hexagon Nut for Essential ApplicationsDiscover the hexagon nut with the comparison number 358/101/12, a product that is ideal for applications requiring reliable connections. This hexagon nut offers the necessary stability and reliability needed in demanding engines—especially as OEM spare part, perfectly tailored to various vehicles and applications.Suitable for MWM & Deutz EnginesOur hexagon nut with the comparison number 358/101/12 is suitable for engines from the manufacturer MWM & Deutz. With our experience in engine technology, we understand the importance of precise engineering. Weighing 0.35 kg, our product contributes to a secure connection and long-lasting performance of your engine.

HEXAGON NUT - 358/108/38 suitable for MWM & Deutz engines

HEXAGON NUT - 358/108/38 suitable for MWM & Deutz engines

Robust Spare Part: Hexagon NutDiscover our hexagon nut, which is a valuable addition to your machines. The comparison number 358/108/38 indicates its specific identification, while this OEM spare part meets the highest standards in terms of quality and performance. This product is the ideal choice for businesses that rely on reliable functionality in their engines.

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HEXAGON NUT - 628/29/18/05038504 suitable for MWM & Deutz engines

HEXAGON NUT - 628/29/18/05038504 suitable for MWM & Deutz engines

Precise Hexagon Nut with Comparison NumberDiscover our Hexagon nut with the comparison number 628/29/18/05038504. This replacement part ensures a perfect fit for your application. Our products are suitable for MWM & Deutz engines, making them the ideal choice for any professional operation. The use of replacement parts ensures quality and reliability.Compact Dimensions and Flexible DesignThe Hexagon nut weighs only 0.011 kg and measures 1.9 cm in length and width and 0.8 cm in height. These compact dimensions make the product a flexible solution for the demanding requirements posed by engines in marine or stationary environments.

Sale price: €23.27Regular price:€25.86(10% saved)
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HEXAGON NUT - 628/17/318/05065710 suitable for MWM & Deutz engines

HEXAGON NUT - 628/17/318/05065710 suitable for MWM & Deutz engines

Reliable Hexagon Nut for Engine ConstructionThe Hexagon nut with the comparison number 628/17/318/05065710 is the ideal replacement part that meets your requirements for efficiency and reliability. This nut has been precisely manufactured to support a long lifespan in engines and is therefore optimal with a weight of only 0.003 kg.Suitable for MWM & Deutz EnginesThis component is suitable for MWM & Deutz engines and is an example of our commitment to high-quality standards. Our replacement parts provide a perfect fit, ensuring optimal functionality of your machines. The use of Aftermarket parts is deliberately avoided, as only parts manufactured within a narrow quality framework sustainably secure the performance of your engines.

SLOTTED ROUND NUT - 602111800135 suitable for MWM & Deutz engines

SLOTTED ROUND NUT - 602111800135 suitable for MWM & Deutz engines

Slotted Round Nut with Comparison Number 602111800135Discover the slotted round nut with the comparison number 602111800135 – an attractively designed product that is suitable for MWM & Deutz engines. As an OEM replacement part, it offers a precise fit that ensures seamless integration into your existing system. Weighing 1.55 kg, this slotted round nut provides the reliability and stability that is particularly demanded in marine and stationary applications as well as for locomotives.

HEXAGON NUT - 358/102/121 suitable for MWM & Deutz engines

HEXAGON NUT - 358/102/121 suitable for MWM & Deutz engines

Robust Hexagon Nut for Versatile ApplicationsDiscover our hexagon nut, easily identifiable by the comparison number 358/102/121. This reliable product is categorized under nuts and is a safe, flexible component suitable for various applications.

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HEXAGON NUT - 358/102/10 suitable for MWM & Deutz engines

HEXAGON NUT - 358/102/10 suitable for MWM & Deutz engines

Functional Hexagon Nut for Optimal Engine PerformanceEnhance the performance of your engines with this hexagon nut, comparison number 358/102/10. This product meets all the requirements expected of a high-quality OEM replacement part. Designed for maximum stability and fit, it ensures that your engine assembly functions optimally. With a weight of 0.9 kg, the hexagon nut is ideal for marine and stationary applications.Reliable Solutions for MWM & Deutz EnginesOur hexagon nut is specifically designed to fit MWM & Deutz engines. This clear focus on the needs of leading manufacturers is reflected in the quality of each individual component. Rely on the first-rate quality and enjoy the advantages offered by our extensive range.

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HEXAGON NUT - 358/119/114 suitable for MWM & Deutz engines

HEXAGON NUT - 358/119/114 suitable for MWM & Deutz engines

Hexagon nut suitable for MWM & Deutz enginesDiscover the hexagon nut with the comparison number 358/119/114, designed to be compatible with MWM & Deutz engines. This product is an essential component that is indispensable in the application for the series 645 and the engine type TBD645-L6. Benefit from an OEM replacement part that provides you with the perfect fit and reliable performance.

Sale price: €12.46Regular price:€13.85(10% saved)
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UNION NUT - 628/32/121/05038517 suitable for MWM & Deutz engines

UNION NUT - 628/32/121/05038517 suitable for MWM & Deutz engines

Discover the Union Nut for Deutz EnginesExperience our union nut with the comparison number 628/32/121/05038517, a crucial OEM spare part that is suitable for Deutz engines. This precisely manufactured product belongs to the group of nuts and simplifies your usage with its lightweight of only 0.026 kg.Quality of Spare Parts Suitable for Deutz EnginesOur union nut provides the reliable performance you need in demanding applications when combined with your engine. Compatible with Deutz engines, this OEM spare part impresses with its excellent fit and finish, whether in the marine sector or stationary use.

Sale price: €1.28Regular price:€1.42(10% saved)
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UNION NUT - 628/32/133/05065300 suitable for MWM & Deutz engines

UNION NUT - 628/32/133/05065300 suitable for MWM & Deutz engines

Union Nut – Optimal Solution for Your EnginesDiscover our Union nut, which is categorized as an OEM replacement part. This product, with the comparison number 628/32/133/05065300, offers a reliable solution for your engines. To ensure the functionality of your drive system, the Union nut is suitable for Deutz engines and allows for quick, stable connections that meet the high standards of OEM replacement parts.Comparison Number and Weight of the Union NutWeighing only 0.01 kg, the Union nut is a true lightweight in the offering. Equipped with the comparison number 628/32/133/05065300, this OEM replacement part provides a precise integration into your engine system. Thus, the Union nut helps ensure the efficiency of your machines that are designed for Deutz engines.

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UNION NUT - 640/35/687/05026226 suitable for MWM & Deutz engines

UNION NUT - 640/35/687/05026226 suitable for MWM & Deutz engines

Union Nut for Engine PerformanceDiscover the Union nut with the reference number 640/35/687/05026226, specifically designed to meet the requirements of Deutz engines. This OEM spare part weighs only 0.018 kg and ensures reliable performance in all applications. Used in marine and stationary systems, this Union nut is the perfect choice for your motorized systems.Suitable for Deutz: Efficiency in FocusThe OEM spare part is suitable for various applications in Deutz engines and belongs to the group of Nuts. Quality is crucial, especially when it comes to engines. Rely on the Union nut to efficiently meet your needs. With the confirmation of the reference number 640/35/687/05026226, each component gains the necessary seriousness.

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HEXAGON NUT - WN4600 M18X1,5 suitable for MWM & Deutz engines

HEXAGON NUT - WN4600 M18X1,5 suitable for MWM & Deutz engines

Marine and Stationary Engines: Hexagon Nut WN4600 M18X1,5Discover the Hexagon nut with the comparison number WN4600 M18X1,5 – a precise OEM spare part that offers excellent quality. This robust nut has been specifically designed for Deutz engines, resulting in exact fitting. With a weight of only 0.052 kg, the Hexagon nut is ideal for demanding applications.

Sale price: €30.81Regular price:€34.23(10% saved)
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HEXAGON NUT - WN4600 M20X1,5 suitable for MWM & Deutz engines

HEXAGON NUT - WN4600 M20X1,5 suitable for MWM & Deutz engines

Hexagon nut with reference number WN4600 M20X1.5Discover the hexagon nut with the reference number WN4600 M20X1.5 – an essential OEM spare part designed specifically for the high-quality requirements of your engine needs. This hexagon nut is a valuable product, suitable for MWM & Deutz engines, and meets the highest quality standards. Rely on the use and reliability of OEM spare parts to operate your engines efficiently.

Sale price: €35.02Regular price:€38.91(10% saved)
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HEXAGON NUT - WN4600 M16X1,5 suitable for MWM & Deutz engines

HEXAGON NUT - WN4600 M16X1,5 suitable for MWM & Deutz engines

Powerful Product: Hexagon NutDiscover the Hexagon nut with the comparison number WN4600 M16X1.5. This essential product is specifically designed for use in diesel and gas engines, offering excellent functionality in marine and stationary applications as well as in locomotives. Weighing 0.037 kg, this spare part is lightweight yet durable.

Sale price: €39.55Regular price:€43.94(10% saved)
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Function and advantages

Screw nuts work in combination with bolts or studs to create strong, threaded connections. In engine systems, a proper engine nut or motor nut must withstand dynamic forces and temperature-related expansion. Key benefits include:

  • Secure locking of mechanical components under stress
  • Resistance to loosening under vibration
  • Easy assembly and disassembly for maintenance

In high-precision systems, mechanical nuts often feature locking mechanisms, flange bases or specialized coatings to enhance grip and corrosion resistance.

Applications and types

Engine nuts are used to fasten cylinder heads, manifolds, brackets and rotating assemblies. Motor nuts are common in alternators, starters, pumps and other auxiliary components. Depending on the application, mechanic nuts can be hex nuts, locknuts, self-locking nuts or high-temperature nuts.

For industrial and marine use, mechanical nuts are often made of stainless steel or alloyed materials to withstand corrosion, vibration and thermal cycles. Our range includes all standard types and sizes suitable for MTU, MAN, Volvo Penta, Deutz and MWM engines.

Availability and sourcing

We stock a wide selection of screw nuts and related fasteners for engines, industrial equipment and marine applications. As experienced screws and nuts suppliers, we provide OEM-quality with fast delivery, technical support and high availability – ideal for overhauls, repairs or production sourcing.

Screw nuts for industrial and marine engines – engine nut, motor nut, mechanical nuts, mechanic nuts – OEM replacements

FAQ

What are screw nuts used for in engines?
Screw nuts in engines are used to secure critical components such as cylinder heads, exhaust systems, brackets and rotating parts. They must withstand heat, vibration and mechanical stress without loosening.

What is the difference between mechanical nuts and mechanic nuts?
“Mechanical nuts” refers to all technical fasteners used in machines, while “mechanic nuts” is a more informal term often used in workshop contexts. Both describe the same parts but are used in different settings.

Where can I buy engine nuts and motor nuts?
Engine nuts and motor nuts are available from specialized screws and nuts suppliers like us. We offer a wide range of standard and special fasteners for diesel and gas engines, with OEM compatibility and fast shipping.

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