Bolt and screw – solutions for marine & industrial
Every engine relies on a secure and vibration-resistant fastening system. A high-quality bolt and screw setup holds together engine blocks, manifolds, and accessories across diesel, gas, and marine systems. In industrial applications, engine screws and motor bolts provide structural stability, resist thermal cycling, and support precision alignment. For marine use, corrosion-resistant marine bolt and marine screws ensure lasting safety even in harsh saltwater environments.
Choose from following:
SCREW/BOLT - 8699900152 suitable for MTU engines
Exquisite Screw/Bolt with Comparison Number 8699900152 Discover the screw/bolt with the comparison number 8699900152, specifically designed for your needs. This OEM replacement part ensures maximum reliability and performance suitable for MTU engines.Replacement Part Suitable for MTU Engines This component is an essential replacement part designed for MTU engines. As part of the screws article group, it meets the highest standards to support the functionality of your engines.
SCREW/BOLT - 2413452048 suitable for Bosch engines
Innovative Product for Your ApplicationsDiscover the screw/bolt with the comparison number 2413452048, a top-notch OEM spare part designed for MTU engines. This product ensures a reliable connection in your applications and assures that your engines operate efficiently. Rely on the excellent fit and functionality that we provide.
SCREW/BOLT - 2413462027 suitable for Bosch engines
Quality That Convince – Comparison Number 2413462027Discover the screw/bolt with the comparison number 2413462027, which has been specifically developed as a top-quality replacement part for MTU engines of the 331 series. This product offers you the durable quality and performance that you expect from a replacement part. Weighing only 0.034 kg, this screw/bolt is both lightweight and essential for the reliability of your engines.Perfect Integration into Your Engine SystemOur screw/bolt, suitable for the MTU engine type 12V331TC92, ensures seamless integration into your existing engine system. The precise manufacturing process ensures that the component meets the highest standards and offers an optimal fit. By using replacement parts, you can be confident that your engines operate efficiently and safely.
SCREW/BOLT - 2914551015 suitable for Bosch engines
Reliable Screw for EnginesDiscover our product, the screw with the comparison number 2914551015. This screw is an essential OEM replacement part and ensures that your machines operate optimally. It weighs only 0.003 kg, making it an ideal choice for use in demanding marine and stationary applications.Suitable for MTU - Maximum EfficiencyThis screw is suitable for the series 331 and provides a precise fit for engine types compatible with MTU 12V331TC92. With this OEM replacement part, you can ensure that your MTU engines run efficiently and reliably. With our years of experience, we know how important quality and accuracy are for the performance of engines.
HEXAGON BOLT - 8699900018 suitable for MTU engines
Precise Hexagon Bolt with Comparison Number 8699900018Experience the hexagon bolt distinguished by the comparison number 8699900018. This OEM spare part is characterized by its robust construction and durability, making it an ideal choice for repairs on engines in various applications. Our hexagon bolt is specifically designed to meet the demands of professionals in marine and stationary use, ensuring that your machines remain powerful.Suitable for MTU EnginesThe hexagon bolt is suitable for MTU engines and offers a perfect fit. It enables a stable and powerful connection, which is optimal for demanding working conditions. Weighing only 0.024 kg and with compact dimensions of 2.7 x 2.7 x 1.9 cm, this OEM spare part can be installed in tighter spaces without compromising functionality.
SCREW/BOLT - 2910961287 suitable for Bosch engines
Quality and Reliability of the ScrewDiscover our screw with the comparison number 2910961287, an essential OEM spare part for your MTU engines. This product is suitable for the 331 series and provides a reliable fastening that meets industry standards. Precision and robustness are embedded in every detail, ensuring your engine operates efficiently and durably.OEM Spare Parts for MTU EnginesOur screw is compatible with various MTU engines, including the 12V331TC92. As a leading supplier of OEM spare parts, we ensure that all products meet the highest standards. Trust our years of expertise in providing engine components that meet the specific requirements of your applications.
VENT PLUG - 8693040510 suitable for MTU engines
Vent plug with comparison number 8693040510Discover the vent plug with comparison number 8693040510, a premium OEM replacement part manufactured for MTU engines. This engine component ensures the functionality of your diesel or gas engine.
STUD - 1003526002 suitable for Bosch engines
Overview of the Stud with Comparison Number 1003526002Discover the Stud with comparison number 1003526002, an essential product for your needs. This Stud is an OEM replacement part that ensures reliable performance for engines. With its robust design, it is ideally suited for engine maintenance.Efficiency for MTU EnginesThis OEM replacement part is precisely designed for MTU engines of the series 331. The Stud provides an optimal fit for engine type 12V331TC92, thereby enhancing efficiency and longevity. Trust our expertise and choose quality when it comes to engines.
SCREW/BOLT - 2423410037 suitable for Bosch engines
Screw suitable for MTU engines in detailDiscover our product, the screw with the comparison number 2423410037, specifically designed for the MTU engine series 331. This screw ensures a precise fit and optimal operation for engine types compatible with 12V331TC92. You can rely on its durability and performance.
SCREW/BOLT - 2423410036 suitable for Bosch engines
OEM Replacement Part: Screw with Comparison Number 2423410036Our product, the screw with the comparison number 2423410036, offers you the reliability you expect for your engines. Especially suitable for MTU engines of the series 331, this specially designed screw ensures that your maintenance needs are minimized. With this designation, you can be confident that you are receiving an OEM replacement part that meets the highest quality standards.Optimally Equipped: Comparison Number 2423410036The comparison number 2423410036 denotes a replacement part that is optimally suitable for the MTU engine type 12V331TC92. By using OEM replacement parts like this screw, you ensure the longevity and efficiency of your engines. Each OEM replacement part is designed to integrate seamlessly into existing systems.
SET SCREW - 2413500002 suitable for Bosch engines
Set screw with comparison number 2413500002Discover the set screw with comparison number 2413500002, an essential OEM spare part specifically designed for the maintenance of engines. This product is suitable for MTU engines of the series 331. Our set screw offers maximum compatibility and performance, ideal for the engine type 12V331TC92.
STUD - 2423502003 suitable for Bosch engines
Robust Stud for Optimal PerformanceDiscover the Stud with the comparison number 2423502003, an essential spare part for motorized applications. This OEM spare part is suitable for the most well-known MTU engines, particularly the series 331, and is specifically designed to meet high demands. Thanks to its perfect fit, you can be assured that your engines operate efficiently.
WAISTED STUD - 2423400033 suitable for Bosch engines
Robust Waisted Stud with Comparison Number 2423400033Discover our waisted stud, the OEM replacement part specifically designed to meet the requirements of MTU engines. With the comparison number 2423400033, this product is the ideal solution for your engines in maritime and stationary applications. Rely on quality that ensures durability.
HEXAGON BOLT - 85900020001 suitable for MAN D engines
Reliable Hexagon Bolt for Marine Applications Discover the hexagon bolt with the comparison number 85900020001, an essential product for engines used in marine and stationary applications. This hexagon bolt weighs 0.08 kg and combines robustness and efficiency for every area of use. The excellent workmanship ensures that the performance of your machines remains optimal at all times.
STUD - 85900015700 suitable for MAN D engines
Stud – Comparison Number 85900015700Discover our Stud, marked with the comparison number 85900015700. This product is specifically designed to fit perfectly in engines. It offers ideal functionality and performance. With a weight of just 0.1 kg, it is lightweight yet robust, making it well-suited for demanding applications.Suitable for MAN D Engines – Reliable QualityOur OEM replacement part is suitable for MAN D engines and impresses with durability and resilience. Unlike aftermarket alternatives, OEM replacement parts provide the assurance that you are using a product that meets the high standards of the manufacturer. This means that the Stud has the same properties as the well-known component.
PAN-HEAD SCREW - 85900015685 suitable for MAN D engines
Optimal Connection: Pan-head Screw for Your ApplicationDiscover the pan-head screw with the comparison number 85900015685, a product specifically designed for MAN D engines. This pan-head screw belongs to the screws category and is ideal for precise connections in your engine system. Weighing just 0.01 kg, it is lightweight and easy to install, allowing you to operate your engines efficiently.Precision and Quality: OEM Spare Parts for EnginesOur pan-head screw, suitable for MAN D engines, is an OEM spare part that meets the highest standards of precision and quality. Each component is carefully inspected to ensure that it sustainably exceeds the requirements of ambitious B2B customers. With this pan-head screw, you invest in the durability and reliability of your engines.
STUD - 85900015684 suitable for MAN D engines
Robust Stud as Replacement PartDiscover the stud with the comparison number 85900015684, an essential OEM replacement part for your applications. This product is suitable for MAN D engines and offers the qualities you expect. Thanks to its OEM characteristics, this stud provides a perfect fit and maximum reliability.OEM Replacement Parts ComparisonAt MOPA Motorparts, we focus on OEM replacement parts that stand out from aftermarket products due to their authenticity. This stud with the comparison number 85900015684 is ideally suited for repairs and maintenance on engines. The use of OEM replacement parts minimizes the risk of malfunctions and ensures your machines operate efficiently.
STUD - 85900015683 suitable for MAN D engines
Stud compatible with MAN D enginesDiscover the stud with comparison number 85900015683, an essential product compatible with MAN D engines. This precisely crafted stud belongs to the screws category and ensures a stable connection in the engine system. Weighing only 0.001 kg, it is easy to install and ideal for your applications.Reliable OEM replacement parts for efficient performanceThe product, the stud with comparison number 85900015683, is an OEM replacement part that meets the highest standards of quality and durability. Compatible with MAN D engines, this component optimizes your engine's performance and contributes to more efficient maintenance. Rely on the highest precision and reliability to extend the lifespan of your engines.
STUD - 85900015682 suitable for MAN D engines
Quality and Reliability with the StudOur stud with the comparison number 85900015682 is a top-notch OEM replacement part designed specifically for optimal performance. This screw belongs to the category of screws and offers excellent fit for optimal use in engines.
HEX SHOULDER STUD - 85900015681 suitable for MAN D engines
Hex Shoulder Stud for Excellent Engine PerformanceDiscover the hex shoulder stud with the comparison number 85900015681, specifically designed for your needs. This robust product is suitable for MAN D engines and belongs to the group of screws. Our OEM replacement parts offer top-notch quality and a perfect fit for various applications.
HEXAGON BOLT - 85900015680 suitable for MAN D engines
Precise Replacement Part: Hexagon BoltOur hexagon bolt with the comparison number 85900015680 is an excellent OEM replacement part specifically designed to optimize the performance of your engines. This product is suitable for MAN D engines and meets the latest industry standards for precision and durability. Trust in the quality you can expect from a renowned manufacturer.Comparison Number 85900015680 for MAN DThe comparison number 85900015680 indicates that this replacement part is suitable for your specific needs. As part of our group of screws in the range, we focus exclusively on products specially designed for engines. Therefore, the hexagon bolt suitable for MAN D engines is ideal for marine and stationary applications.
HEX SHOULDER STUD - 85900015679 suitable for MAN D engines
Premium Hex Shoulder Stud for EnginesDiscover our hex shoulder stud with the comparison number 85900015679, an indispensable product that ensures optimal performance for engines. This OEM spare part has been designed to provide a reliable connection in various applications. Weighing only 0.28 kg, this stud is easy to handle and is ideally suited for marine and stationary use.
HEXAGON BOLT - 85900015649 suitable for MAN D engines
Hexagon Bolt Suitable for MAN D EnginesDiscover the hexagon bolt (comparison number: 85900015649), a top-notch OEM replacement part. This product ensures reliable performance and a durable connection in your engine operation.
HEXAGON BOLT - 85900015648 suitable for MAN D engines
Hexagon Bolt – An Essential ProductDiscover our hexagon bolt with the comparison number 85900015648, an essential product suitable for MAN D engines. This replacement part offers flawless functionality and is ideal for use in demanding environments.Excellent Quality and Internal ControlOur hexagon bolt belongs to the screws article group and is specifically designed to meet the highest standards. Every OEM replacement part undergoes strict internal control to ensure quality and reliability.
What are bolts and screws used for in engine systems?
A bolt and screw is used to fasten components under mechanical stress. This includes cylinder heads, pumps, intake manifolds, mounts, and brackets. Engine bolt assemblies require high tensile strength and precise thread profiles to prevent loosening under load. In marine settings, bolts marine configurations include additional corrosion protection through zinc coatings, stainless alloys, or composite heads. Whether for permanent fastening or removable joints, motor screws and bolts form the basis of structural integrity in all engine types.
Function and benefits of bolts and screws in engines
- Secure static and dynamic connections across engine assemblies
- Resist vibration, pressure, and thermal expansion
- Support torque retention and load distribution
- Enable safe disassembly for maintenance and inspection
- Allow modular engine construction with standard sizes
In both land-based and marine power units, engine screws and motor bolt types are selected for load class, material strength, and thread pitch. Using the right bolt and screw combination reduces failure risks and simplifies service procedures.
Types and materials of marine and engine fasteners
- Hex head and flange bolts for structural engine joints
- Socket head motor screws for precision components
- Thread-locking marine screws for hull or motor mounts
- High-strength engine bolt sets with graded coatings
- Marine bolt systems with stainless steel or brass
Bolts marine assemblies often use A4 stainless or Duplex steel, ensuring protection against seawater and galvanic reactions. Motor screws in enclosed spaces may use black oxide or phosphate finishes for corrosion protection and ease of removal. Material selection depends on torque level, accessibility, and contact with fluids or chemicals.
Compatibility and sourcing
We offer fastening solutions suitable for MTU, Deutz, MAN, Volvo Penta, and MWM. Whether you're rebuilding a turbo mount, re-securing an exhaust manifold, or replacing critical head bolts, our bolt and screw range fits a wide variety of marine and industrial engines. We stock bolts by dimension, thread, material, and application group.
Thanks to our well-equipped warehouse and fast delivery options, we offer short lead times and quick availability for both standard and application-specific fasteners.
Use cases in industrial and marine applications
Marine screws are often used for water-cooled exhaust, hull penetrations, and engine bed mounting. Motor bolt sets are required for rotating assemblies and timing covers. Across applications, the right engine bolt and screw setup ensures alignment under thermal expansion and torque loading. For boats, hose adapter brackets, alternators, and gearboxes also require vibration-resistant marine bolt systems with low galling and secure locking.
Buying advantages with us
Our B2B shop provides:
- Fast worldwide shipping via DHL Express
- Material and strength class selection support
- Easy ordering for bulk or precision fasteners
We supply OEM-standard bolt and screw combinations for maintenance, repairs, or assembly upgrades. With practical kit options and single part selection, technicians can easily match specs during overhauls or engine conversions.
Related components to bolt and screw systems
Complementary items often include washers, retaining rings, thread-locking pastes, brackets, and custom spacers. These elements contribute to torque stability and fastener longevity in both mobile and stationary engines. A correct bolt and screw setup is fundamental to safe operation.
Frequently asked questions about bolts and screws
What is a screw?
A screw is a threaded fastener designed to be inserted into material or a pre-threaded hole to hold components together.
What is the difference between a bolt and a screw?
A bolt typically works with a nut and is used through unthreaded holes, while a screw forms its own thread or fits into a tapped hole.