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.
Choose from following:
HEXAGON NUT - 81905010062 suitable for MAN D engines
Hexagon nut for Individual RequirementsDiscover the hexagon nut with the comparison number 81905010062, an essential spare part that combines quality and precision. This product is specifically designed to meet the requirements of your engines. Weighing only 0.004 kg, it is ideal for use in various conditions, whether in marine or stationary applications.
HEXAGON NUT - 81905010058 suitable for MAN D engines
Hexagon nut for MAN D enginesDiscover the hexagon nut with the comparison number 81905010058, an essential OEM spare part that is perfectly suited to ensure reliable connections. This product belongs to the category of nuts and is specifically designed to meet the high demands of engines. Weighing only 0.003 kg, it offers a lightweight yet robust solution for your project.
HEXAGON NUT - 3393300058 suitable for Bosch engines
Hexagon Nut – Your Reliable OEM Replacement PartDiscover the hexagon nut with the comparison number 3393300058, suitable for MAN D engines. This replacement part offers exceptional quality and reliability that are crucial for your applications in marine and stationary technology. Trust in the precise fit and durability of this product, specifically designed for engines.
HEXAGON NUT - 81905010055 suitable for MAN D engines
Precise Hexagon Nut for High DemandsThe hexagon nut with the comparison number 81905010055 is an indispensable OEM replacement part. Weighing only 0.005 kg, this product is specially designed to provide outstanding stability in your engines. The nut is suitable for MAN D engines and ensures that your machines operate efficiently and reliably.Suitable for MAN D EnginesThis hexagon nut ensures a precise fit, developed for the high demands in marine and stationary applications. As an OEM replacement part, the hexagon nut is suitable for MAN D and offers the quality your engine needs. Rely on OEM replacement parts to maintain the longevity of your engines.
HEXAGON NUT - 81905010017 suitable for MAN D engines
Reliable Hexagon Nut for Engine ApplicationsThe hexagon nut with the comparison number 81905010017 is an essential OEM replacement part specifically designed to optimally support engines used in marine and stationary applications. Weighing only 0.012 kg, this product ensures a secure and stable connection in your engine assembly.Efficient Solutions Suitable for MAN D EnginesThis product is suitable for MAN D engines and contributes to longevity and functionality. The hexagon nut belongs to the article group Nuts and is made from high-quality materials. We place particular emphasis on internal controls to ensure the quality of our OEM replacement parts.
HEXAGON NUT - 81905010004 suitable for MAN D engines
Precise Hexagon Nut for Your RequirementsDiscover the hexagon nut with the comparison number 81905010004, which provides a perfect solution for your engines. This product is specifically designed to maintain the performance and reliability of your system. A precisely manufactured component that is ideal for applications in demanding environments.Suitable for MAN D EnginesOur hexagon nut is an OEM replacement part and thus suitable for MAN D engines. Weighing only 0.011 kg, this nut is considered durable and lightweight at the same time. The original equipment quality ensures that you do not have to compromise when it comes to the performance of your engines.
SLEEVE NUT - 81904906011 suitable for MAN D engines
Precise Sleeve Nut for MAN D EnginesThe sleeve nut with the comparison number 81904906011 is a high-quality OEM replacement part specifically designed for MAN D engines. This nut belongs to the article group Nuts and plays a crucial role in ensuring secure grip and stability for your engines. Weighing only 0.052 kg, the sleeve nut provides an ideal solution for applications in marine and stationary use.
NUT - 81904900542 suitable for MAN D engines
Perfect Fit for MAN D EnginesDiscover the product with the comparison number 81904900542, a Nut that has been specifically designed for MAN D engines. This Nut belongs to the category of Nuts and provides a reliable connection that is essential for the optimal performance of your engines. It has been manufactured based on the latest standards and meets the requirements of OEM spare parts.
NUT - 81671100026 suitable for MAN D engines
Robust Nut for Reliable EnginesThe Nut with the comparison number 81671100026 is an essential OEM spare part. It has been designed to meet the high demands of engines and is therefore suitable for MAN D engines. Through precise manufacturing, this product offers optimal functionality and durability, which are crucial for marine and stationary use.Efficiency through Exact OEM Spare PartsOur OEM spare parts ensure optimal fit, allowing you to rely on the performance of your engines. The comparison number 81671100026 confirms that you select the correct spare part. Our products meet the highest standards specifically designed for use in efficient MAN D engines.
HEX LOCK NUT M10-10-A4C - 81669125202 suitable for MAN D engines
Hex Collar Lock Nut – Your Reliable Spare PartDiscover the Hex collar lock nut, comparison number 81669125202, a top-notch spare part that perfectly fits MAN D engines. This product is essential for the functionality of your diesel and gas engines in marine and stationary applications, ensuring reliable performance of your engines.Optimal Solution for MAN D EnginesWeighing only 0.1 kg, the Hex collar lock nut provides necessary robustness and easy handling. As a spare part, it meets the high standards for precision and durability that are specifically established for engines. Rely on parts that are precisely suitable for your MAN D engines to achieve the best possible performance.
NUT - 81664400184 suitable for MAN D engines
Originality and Functionality: Nut 81664400184Discover the nut with the comparison number 81664400184, specifically designed for MAN D engines. This OEM spare part offers excellent fit and durability to ensure optimal performance of your machines. Weighing only 0.004 kg, this nut is both lightweight and practical.Effective Solutions for EnginesOur nut is a high-quality OEM spare part, suitable for MAN D engines. It belongs to the category of nuts and meets all industrial standards. With its high quality, you help maximize the efficiency of your diesel and gas engines in maritime and stationary applications.
TENSIONING NUT - 81657500056 suitable for MAN D engines
Tensioning nut suitable for MAN D enginesDiscover our OEM replacement part, the tensioning nut with the comparison number 81657500056, specially designed for engines suitable for MAN D. This tensioning nut offers a tailored solution for diesel and gas engines in marine applications and stationary operations. With its precise fit, it is an essential component for reliable operations.Quality of OEM replacement partsAt MOPA Motorparts, we know how important quality is. Our OEM replacement parts, like the tensioning nut with the comparison number 81657500056, are the ideal choice for optimizing the performance of your engines. Unlike aftermarket parts, our products provide the high standards you need.
TENSIONING NUT - 81657500023 suitable for MAN D engines
Tensioning nut with comparison number 81657500023Discover the tensioning nut with the comparison number 81657500023, specifically designed for use in engines. This tensioning nut is an essential component that offers excellent performance and reliability. Weighing 1.72 kg, it is an ideal solution for your needs.OEM replacement part for optimal fitAs an OEM replacement part, this tensioning nut provides a high fit accuracy for engines compatible with MAN D. Compared to aftermarket products, you receive the quality and safety that only manufacturers can offer. Trust in the proven quality of MOPA Motorparts and benefit from the longevity of our products.
SLEEVE NUT - 81615400018 suitable for MAN D engines
Precise Sleeve Nut for Your ApplicationsDiscover the sleeve nut with the comparison number 81615400018, an outstanding OEM replacement part. This sleeve nut is specifically designed and offers a perfect fit for MAN D engines. Weighing only 0.03 kg, it combines robustness and efficiency, which are of great importance for your applications.Product FeaturesThe sleeve nut is an important component that ensures precise fit and optimal performance in the engines. Suitable for MAN D engines, this OEM replacement part meets the strict quality requirements you expect. The comparison number 81615400018 is your key to a reliable and durable engine component.
HEX LOCK NUT M8-8-A3A - 81517150141 suitable for MAN D engines
HEX LOCK NUT M8-8-A3A with the comparison number 81517150141 suitable for MAN D engines
HEXAGON NUT - 81511120001 suitable for MAN D engines
Hexagon nut with comparison number 81511120001The hexagon nut with the comparison number 81511120001 is an essential OEM spare part for applications in various engines. This product is optimized for MAN D engines and provides the necessary stability expected in demanding environments. Weighing only 0.02 kg, the hexagon nut is easy to handle and thus supports the smooth operation of your machines.
HEX COLLAR NUT - 81455030090 suitable for MAN D engines
Efficient Hex Collar Nut for MAN D EnginesDiscover our product, the Hex collar nut (comparison number: 81455030090), an indispensable OEM spare part, suitable for MAN D engines. These OEM spare parts belong to the category Nuts and offer precise and reliable application.Quality for Various Engines Our Hex collar nut is specifically suitable for the requirements of MAN D engines and is also offered for other manufacturers such as MWM, Mercedes-Benz, and Deutz. Trust in our many years of experience in the distribution of top-quality spare parts for marine and stationary applications.
HEX COLLAR NUT - 81455030089 suitable for MAN D engines
Exclusive OEM Spare Part: Hex Collar NutPresenting our premium product, the Hex collar nut with the comparison number 81455030089. This OEM spare part is suitable for MAN D engines and offers the highest quality and reliability in your applications. Trust our expertise in the field of engines and benefit from efficient service.Perfectly Matched Solution for EnginesThe Hex collar nut is not just a simple component but an essential part to optimize the performance of your engines. Suitable for MAN D engines, this product provides optimal durability and functionality for marine and stationary applications as well as locomotives.
HEX COLLAR NUT - 81455030076 suitable for MAN D engines
Hex Collar Nut with Comparison Number 81455030076Discover the Hex collar nut with the comparison number 81455030076, an essential OEM spare part specifically designed for your needs. This product offers optimal fit and durability and is indispensable for the maintenance of engines.
HEX COLLAR NUT - 81455030075 suitable for MAN D engines
Precise Hex Collar Nut for Your EnginesDiscover the hex collar nut with the comparison number 81455030075. This product is an OEM replacement part specifically designed to optimize the reliability of your engines. The hex collar nut is essential as it creates a secure connection in your engine system.
HEX COLLAR NUT - 81455030073 suitable for MAN D engines
Selected Hex Collar Nut for Your NeedsDiscover our OEM replacement part, the hex collar nut with the comparison number 81455030073. This essential product is not only a perfect fit but also ensures that your engines run efficiently. The quality of these nuts is specifically designed to meet the demands of the industry and meets the high standards set by OEM manufacturers.
HEX COLLAR NUT - 81455030070 suitable for MAN D engines
Precise Hex Collar Nut for Your EnginesDiscover our hex collar nut with the comparison number 81455030070, an essential product specifically designed for engines. This nut is suitable for MAN D engines and ensures a secure connection in demanding applications.OEM Replacement Parts for MAN DWe offer you excellent OEM replacement parts that match the comparison number 81455030070 and meet exactly the requirements important for the maintenance of engines. Our hex collar nut is a key component, compatible with MAN D engines and designed for long-term performance.
HEX COLLAR NUT - 81455030069 suitable for MAN D engines
Robust Hex Collar Nut for EnginesDiscover the hex collar nut with comparison number 81455030069, an essential product for your engines. This OEM spare part offers the reliability you expect when maintaining your engines.Quality and Precise ExecutionOur hex collar nut is suitable for MAN D engines and belongs to the article group "Nuts". Every product meets strict quality standards and undergoes detailed internal inspections to ensure that you receive only the best OEM spare part.
HEX COLLAR NUT - 81455030068 suitable for MAN D engines
Hex collar nut with comparison number 81455030068Our hex collar nut with the comparison number 81455030068 is the ideal OEM replacement part for your needs. This product impresses with excellent quality and is suitable for various engines.
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.
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.