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:
TURNBUCKLE NUT - 81906710032 suitable for MAN D engines
Turnbuckle nut for your engine needsDiscover the turnbuckle nut with the comparison number 81906710032 – an essential replacement part for MAN D engines. This product is part of the article group "Nuts" and offers the highest quality and reliability for your engines in marine and stationary use.Suitable for MAN D enginesThe turnbuckle nut is specifically designed to be suitable for MAN D engines and combines lightness with robustness. Weighing only 0.18 kg, this replacement part ensures that you can optimally support the performance of your engines. Rely on a product that meets the highest industry standards.
TENSIONING NUT - 81906710031 suitable for MAN D engines
Robust Tensioning Nut for EnginesDiscover the tensioning nut with the comparison number 81906710031. This important product is an essential component for engines that must meet high demands. Weighing 0.47 kg, the tensioning nut offers stability and reliability under challenging conditions.
TURNBUCKLE NUT - 81906710030 suitable for MAN D engines
Indispensable Product: Turnbuckle Nut The turnbuckle nut with the comparison number 81906710030 is an indispensable OEM spare part for your MAN D engines. It belongs to the group of nuts and provides a reliable solution for fastening and securing equivalent components. Weighing only 0.15 kg, this product is efficient in use and ensures the necessary stability in harsh environments.Quality for MAN D EnginesThis turnbuckle nut has been carefully developed and is suitable for MAN D engines, highlighting its reliability. The comparison number 81906710030 indicates that this OEM spare part meets the exact standards you expect from premium components. Whether in marine or stationary use, this product meets the highest demands for quality and durability.
TURNBUCKLE NUT - 81906710029 suitable for MAN D engines
Premium Replacement Part: Turnbuckle Nut in DetailDiscover the turnbuckle nut with the comparison number 81906710029. This high-quality OEM replacement part ensures a precise fit that is necessary for the optimal function of your engines. Weighing only 0.12 kg, the turnbuckle nut is ideal for use in demanding environments.Suitable for MAN D Engines: Highest Precision AssuredOur turnbuckle nut is an essential component, suitable for MAN D engines. It not only provides stability but also contributes to the long-term performance of your engine. Rely on this quality solution to optimize the performance and safety of your engines.
HEXAGON NUT - 81906710019 suitable for MAN D engines
Hexagon nut suitable for MAN D enginesDiscover the hexagon nut, suitable for MAN D engines, with the comparison number 81906710019. This hexagon nut is an essential OEM replacement part specifically designed for diesel and gas engine-powered machines. The excellent workmanship ensures a reliable connection and allows for the optimal functionality of your engines.
SQUARE NUT - 81906710005 suitable for MAN D engines
Quality That Convince: Your Additional ComponentDiscover the square nut with the comparison number 81906710005, which is the ideal choice for your engine needs. This product ensures the highest precision and reliability, as it is offered as an OEM replacement part. Weighing only 0.1 kg, the square nut is easy to handle while providing the necessary stability for use in various applications.
SPEED NUT - 81906500022 suitable for MAN D engines
Precise Replacement Part: Speed Nut 81906500022Discover the speed nut, an OEM replacement part suitable for MAN D engines. The reference number 81906500022 highlights this product, which stands out for its reliability and precision. Developed in accordance with the high standards of manufacturers, this replacement part offers optimal performance and long-term functionality.
HEX COLLAR NUT - 81906400064 suitable for MAN D engines
HEX COLLAR NUT with the comparison number 81906400064 suitable for MAN D engines
HEX COLLAR NUT - 81906400060 suitable for MAN D engines
Premium Hex Collar Nut: Comparison Number 81906400060 Discover our hex collar nut with comparison number 81906400060. This OEM replacement part is essential for the reliable function of your engines. It offers a precise fit that optimizes the performance of your machines.
COLLAR NUT - 81906400059 suitable for MAN D engines
Collar nut suitable for MAN D enginesDiscover the collar nut with the comparison number 81906400059, which stands for OEM replacement parts with the highest precision and durability. This product is an important component specifically designed to be optimally compatible with MAN D engines.
COLLAR NUT - 81906400058 suitable for MAN D engines
Collar nut suitable for your MAN D enginesDiscover the collar nut suitable for MAN D engines with the comparison number 81906400058. This OEM spare part offers you optimal performance and reliability – tailored for your engine needs.
HEX COLLAR NUT - 81906400057 suitable for MAN D engines
Precise Hex Collar Nut for MAN D EnginesDiscover the hex collar nut, an essential product with the reference number 81906400057, specifically designed to meet the requirements of engines. This nut belongs to the category of nuts and is suitable for MAN D engines. Weighing only 0.03 kg, it is lightweight yet robust, ideal for use in demanding areas.Quality through OEM Replacement PartsThe hex collar nut is a top-quality OEM replacement part. This precision ensures that you receive a product that meets the high standards of the original equipment manufacturer. Each OEM replacement part is manufactured with the utmost care and is designed to integrate perfectly into your existing systems. This way, you can be confident that your engines will operate optimally.
HEX COLLAR NUT - 1123314003 suitable for Bosch engines
Precise Manufacturing of the Hex Collar NutDiscover our product, the Hex collar nut with the reference number 1123314003. This OEM replacement part is suitable for MAN D engines and is characterized by its precise manufacturing. Weighing only 0.03 kg, this hex collar nut ensures a reliable connection that significantly contributes to the efficiency of your engines.Quality of OEM Replacement PartsThe Hex collar nut belongs to the product group "Nuts" and stands for top-notch processing. As OEM replacement parts, we offer products that are tailored to the requirements and standards of engines. With this hex collar nut, you are well-equipped to ensure the longevity and functionality of your machines.
HEXAGON NUT - 81906400056 suitable for MAN D engines
Hexagon Nut for Your Engine SolutionsDiscover the hexagon nut, comparison number 81906400056, that perfectly fits your requirements. The product belongs to the group of nuts and is a reliable solution for all applications in the marine and stationary sectors as well as in locomotives. This hexagon nut weighs only 0.09 kg and is specifically designed to optimize the performance of your engines.
COLLAR NUT - 81906400055 suitable for MAN D engines
Collar nut for your demanding applicationsDiscover the collar nut with the comparison number 81906400055 – an indispensable OEM spare part that is perfectly suited for MAN D engines. This precisely manufactured nut ensures reliable connections in your engine. Weighing only 0.009 kg, it combines robustness and efficiency to support your applications in the marine and stationary sectors.Optimal fit for MAN DThe collar nut, suitable for MAN D, meets all requirements for modern engines. As part of our extensive range of over 1 million spare parts in original equipment manufacturer quality, we ensure that every OEM spare part adheres to the highest standards. The comparison number 81906400055 stands for quality and durability, providing you with the performance your machines deserve.
HEX COLLAR LOCK NUT - 81906400053 suitable for MAN D engines
Robust Hex Collar Lock Nut Experience the Hex collar lock nut with the reference number 81906400053, an essential product for anyone who values quality. This premium nut belongs to the category of Nuts and offers the highest reliability for engines. Designed as an OEM replacement part, it meets the requirements for marine and stationary applications.Suitable for MAN D Engines This robust Hex collar lock nut is suitable for MAN D engines and is characterized by its durability and safety. Weighing 0.26 kg, it works in conjunction with other components to ensure your engine operates efficiently and reliably. Trust in the quality of OEM replacement parts specifically designed for long-term use.
HEX COLLAR LOCK NUT - 81906400045 suitable for MAN D engines
Hex Collar Lock Nut for Your NeedsDiscover the hex collar lock nut (comparison number: 81906400045), an important OEM spare part categorized under nuts. This product is suitable for MAN D engines and provides a stable connection for your applications. Weighing only 0.11 kg, this spare part is ideal for efficient maintenance and repair work.Quality and Confidentiality of OEM Spare PartsOur hex collar lock nut offers you the reliability needed when using engines. Each OEM spare part is produced under strict internal controls to meet high standards. Rely on our expertise to ensure your engines operate optimally.
HEX COLLAR LOCK NUT - 81906400044 suitable for MAN D engines
Hex Collar Lock Nut Compatible with MAN DDiscover the hex collar lock nut with the comparison number 81906400044, specially designed to meet the demands of engines in challenging environments. This product belongs to the category of nuts and is compatible with MAN D engines. Weighing only 0.065 kg, this nut offers an ideal combination of lightweight design and robustness.Precision and Quality for EnginesThe hex collar lock nut provides precise fitment, which is essential for the reliable function of your engines. As an OEM replacement part, it meets the highest quality standards and the safety expected by companies in the industry. An OEM replacement part like this ensures that your applications function reliably and minimizes downtime.
HEX COLLAR NUT - 81906400043 suitable for MAN D engines
Hex Collar Nut for MAN D EnginesThe Hex collar nut with the comparison number 81906400043 is an outstanding OEM spare part designed to function reliably in engines of various types. Weighing just 0.16 kg, this product represents quality and optimal performance in your machine construction. Benefit from the careful processing that characterizes this nut and ensures long-lasting use.
HEX COLLAR NUT - 81906400042 suitable for MAN D engines
Hex collar nut for maximum efficiencyDiscover the Hex collar nut with the comparison number 81906400042, which is perfectly suitable for MAN D engines. This product belongs to the group of Nuts and impresses with precise workmanship and excellent quality. Weighing only 0.005 kg, it is both straightforward in design and functional.Reliable quality suitable for MAN D enginesOur Hex collar nut is an OEM replacement part that meets the highest demands. The component fits MAN D engines and is ideal for use in marine and stationary applications. Rely on OEM replacement parts to sustainably optimize the performance of your engines.
HEX COLLAR NUT - 81906400037 suitable for MAN D engines
Discover the Hex Collar Nut in DetailDiscover the Hex collar nut with the comparison number 81906400037, which represents a sophisticated solution for engines. This product is suitable for MAN D engines and provides you with the quality needed for the smooth operation of your diesel or gas engines.
UNION NUT - 81906302000 suitable for MAN D engines
Union nut with reference number 81906302000The union nut with reference number 81906302000 is an essential OEM replacement part for the reliable operation of your engines. Weighing only 0.03 kg, this product offers an optimal combination of robustness and functionality. Our replacement parts are specially designed to achieve the best performance and encompass the entire spectrum required for the maintenance of your engines.OEM quality for MAN D enginesThe union nut is compatible with MAN D engines and offers an exact fit. By using OEM replacement parts, you ensure the highest quality and reliability that remains unmatched compared to aftermarket products. Because only with authentic OEM replacement parts do you benefit from optimal performance and durability of your engines.
UNION NUT - 81906300060 suitable for MAN D engines
Union Nut – An Essential ComponentThe union nut with the comparison number 81906300060 is an indispensable product for all applications relying on powerful engines. In the category of nuts, this OEM replacement part impresses with its excellent quality and precise fit, suitable for MAN D engines. Weighing only 0.02 kg, the union nut is easy to handle, making installation efficient.OEM Replacement Parts for Maximum PerformanceThis OEM replacement part is suitable for MAN D engines and ensures that every component in your engine works together optimally. Our customized solutions support the efficiency of your machines, allowing you to rely on the performance of your engines at all times.
UNION NUT - 81906300059 suitable for MAN D engines
Union Nut suitable for MAN D EnginesDiscover the union nut with the comparison number 81906300059, designed specifically for MAN D engines. This OEM spare part ensures a reliable connection and meets the demands of challenging marine and stationary applications as well as locomotives. The union nut is an essential component for the efficiency of your engine.Lightweight and Robust – Convincing FeaturesWeighing only 0.118 kg, this product impresses with its optimal construction. The union nut, suitable for MAN D engines, is not only lightweight but also robust. It has been specifically designed for high loads, ensuring its durability and reliability in operation.
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.