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:
VENT PLUG - 90810845111 suitable for MAN D engines
Precise Performance with the Vent PlugThe vent plug with the comparison number 90810845111 is an essential product for the optimal functioning of your engine. This OEM replacement part ensures a precise fit and maximum reliability. Weighing only 0.015 kg, it provides a well-thought-out solution to maximize the performance of your diesel or gas engine.Quality for MAN D EnginesThe vent plug is suitable for MAN D engines and meets the highest standards for durability. Unlike aftermarket solutions, this OEM replacement part ensures that the unit integrates seamlessly into your existing systems and enhances efficiency. Trust in this precision to keep your engines performing at their best at all times.
HOLLOW SCREW - 90810745710 suitable for MAN D engines
Versatile Hollow Screw for High-Performance EnginesDiscover the hollow screw with the comparison number 90810745710, an essential OEM spare part for your requirements. This product ensures that your engines operate efficiently and meet the highest performance demands. Weighing only 0.014 kg, the hollow screw is ideal for demanding applications in the marine sector as well as in stationary plants and locomotives.
VENT PLUG - 90810745660 suitable for MAN D engines
Robust Vent Plug for Premium EnginesThe vent plug with the comparison number 90810745660 is an essential OEM replacement part, compatible with MAN D engines. Weighing only 0.014 kg, this product offers an ideal way to ensure the reliable function of your engine. It belongs to the category of screws and impresses with its high quality and precision, which are specifically required for critical applications in marine and stationary engine technology.Precision and Fit of OEM Replacement PartsThis replacement part, suitable for MAN D, delivers top-notch performance. As an OEM replacement part, the vent plug meets the strict specifications of the equipment manufacturer. This prepares you optimally to support the longevity of your engines. Rely on our expertise and the quality of our products, which have been specially developed for use in demanding environments.
SCREW/BOLT - 90810745291 suitable for MAN D engines
Premium Screw/Bolt for Your EnginesDiscover the screw/bolt with the comparison number 90810745291, an essential OEM spare part specifically designed for MAN D engines. Weighing only 0.074 kg, this product offers high durability and ensures optimal functionality in your diesel and gas engines.
HEXAGON BOLT - 90803150125 suitable for MAN D engines
Robust Hexagon Bolt for Efficient EnginesDiscover our top-quality product, the hexagon bolt, with the comparison number 90803150125. This OEM replacement part is specifically designed for applications in various engines. Weighing only 0.02 kg, the hexagon bolt is lightweight yet robust, making it ideal for most industrial requirements.Suitable for MAN D EnginesThis hexagon bolt is suitable for MAN D engines and ensures a reliable connection in any application. As part of our range of OEM replacement parts, we ensure that you receive the best possible quality with this bolt. The fasteners are crucial for the efficiency and longevity of your engines.
HEX SHOULDER STUD - 90801195399 suitable for MAN D engines
Robust Hex Shoulder Stud Compatible with MAN D EnginesDiscover the hex shoulder stud with the comparison number 90801195399, a reliable product specifically developed for MAN D engines. This stud belongs to the product group of screws and provides the necessary stability for applications in marine and stationary environments. Weighing 0.36 kg, it is perfectly suited for demanding conditions.Quality and Reliability: OEM Replacement PartsOur hex shoulder stud ensures quality and reliability that you expect from an OEM replacement part. Each component is manufactured according to the strict standards of leading manufacturers such as MWM, Mercedes-Benz, Deutz, MAN, Volvo, MTU, Bosch, and Detroit Diesel. You can rely on this product to be powerful and durable.
SCREW/BOLT - 9001333448 suitable for Bosch engines
Precise OEM Replacement Part: Screw 9001333448Discover our product, the screw with the comparative number 9001333448. This OEM replacement part is perfectly suitable for engines operated by Bosch. The careful processing ensures an exact fit that meets the requirements of modern engines.Suitable for Bosch Engines: Optimal PerformanceThe screw is suitable for Bosch engines and has been specifically developed for diesel and gas engines. Thanks to strict internal controls, we offer you quality that is essential for the longevity of your machines. Rely on our OEM replacement part to operate your engines efficiently.
HOLLOW SCREW UNION - 88981500009 suitable for MAN D engines
Optimal Spare Part: Hollow Screw UnionDiscover our Hollow Screw Union, an excellent OEM spare part specifically designed for MAN D engines. This product impresses with its outstanding quality and meets the industry's strict requirements. With the comparison number 88981500009, you can ensure that you select the right part for your needs.
SCREW PLUG - 88981380011 suitable for MAN D engines
Precise Screw Plug for EnginesThe screw plug with the comparison number 88981380011 is an essential product that offers optimal fit for your applications. This screw belongs to the category of screws and impresses with its outstanding quality and durability. With a weight of just 0.03 kg, it is ideally suited for use in engines.Reliable OEM Replacement Parts for Your ApplicationsOur OEM replacement part is suitable for MAN D engines and meets the highest quality standards of the manufacturer. Compared to aftermarket products, our OEM replacement part offers tested stability and a perfect fit. Rely on the safety of an original and avoid potential complications associated with inferior alternatives.
SCREW PLUG - 88960020204 suitable for MAN D engines
Precise Screw Plug – Comparison Number 88960020204Discover the innovative screw plug, comparison number 88960020204, an essential OEM replacement part specifically designed for engines. This screw plug offers excellent performance and is indispensable for the maintenance of engines used in maritime and stationary applications. Weighing only 0.001 kg, it is easy to handle while ensuring a reliable connection of the components.Suitable for MAN D – Perfect Fit AssuredThis screw plug is precisely designed for MAN D engines, ensuring optimal functionality. The precise manufacturing from selected materials ensures that each application meets the highest standards. Trust in the quality of our OEM replacement parts!
THREADED ROD - 88951900017 suitable for MAN D engines
Precision Threaded Rod – Your Reliable ComponentDiscover the threaded rod with the comparison number 88951900017, which offers you top-notch performance. This OEM replacement part is essential for your engines. Weighing only 0.34 kg, it is perfectly suited for use in demanding environments and ensures optimal functionality.Quality for MAN D EnginesThis product is compatible with MAN D engines and meets the strict requirements for quality and precision. Every detail of this threaded rod has been carefully manufactured to achieve maximum durability. Rely on our OEM replacement parts specifically designed for the high loads of your applications.
THREADED ROD - 88951900016 suitable for MAN D engines
Threaded rod with comparison number 88951900016The threaded rod with the comparison number 88951900016 is an essential spare part that combines quality and reliability. It belongs to the category of screws and is perfectly suited for demanding applications. Weighing 0.114 kg, this threaded rod impresses with its precise workmanship and is compatible with MAN D engines.Exact fit for your applicationOur threaded rod is an OEM spare part specifically designed for engines that meet high demands in marine and stationary applications. The exact fit ensures that the threaded rod matches optimally with the MAN D engines, significantly improving the overall performance of your machine.
THREADED ROD - 88951900015 suitable for MAN D engines
Convincing Threaded Rod: Comparison Number 88951900015 Discover the threaded rod with the comparison number 88951900015, an essential product in the article group screws. This threaded rod is the perfect spare part designed for your requirements in marine and stationary engine technology. Weighing only 0.099 kg, this lightweight product is efficient and easy to handle.Suitable for MAN D Engines in Use Our threaded rod is suitable for MAN D engines and ensures the highest quality and performance. When selecting our spare parts, we place great emphasis on internal controls to ensure that each threaded rod meets demanding standards. Rely on the durability and robustness of this component to enhance the efficiency of your machines.
THREADED ROD - 88951600004 suitable for MAN D engines
Threaded rod: Your Reliable Spare PartDiscover our threaded rod with the comparison number 88951600004 – an essential OEM spare part for engines. This threaded rod is specifically designed for applications in marine and stationary areas, ensuring the quality you expect from OEM spare parts. Weighing only 0.01 kg, it not only meets your space requirements but also ensures smooth operation.
STUD - 88951010003 suitable for MAN D engines
Stud with Comparison Number 88951010003 Discover the stud with the comparison number 88951010003 – a premium product for diesel and gas engines. Weighing 0.26 kg, this stud offers stability and durability. It is specifically designed to meet the demands of challenging operations.Suitable for MAN D Engines The stud is suitable for MAN D engines and ensures excellent fit accuracy. These OEM replacement parts meet the highest quality standards, allowing you to rely on their processing and performance. Trust in a product that is optimally tailored to the needs of your engines.
COLLAR BOLT M20X21X24X50-41CR4 - 88904900211 suitable for MAN D engines
Collar screw with comparison number 88904900211Presenting the collar screw with comparison number 88904900211 – an essential OEM replacement part for your engines. This product belongs to the category of screws and offers user-friendliness and ease of handling with a weight of only 0.12 kg.
- 88904900032 suitable for MAN D engines
Flat Head Screw M5x16-CuZn58 for MAN D EnginesThe flat head screw M5x16-CuZn58 with the comparison number 88904900032 is a premium OEM replacement part specifically designed for MAN D engines. With this flat head screw, you receive a product that meets the highest standards of precision and functionality.Our Committed Customer ServiceBenefit from our over 25 years of expertise in the field of engines and OEM replacement parts. Our customer service is available via WhatsApp, email, or phone – we are happy to answer all your questions about products, including the comparison number 88904900032.
CYLINDER SCREW - 88904900031 suitable for MAN D engines
Cylinder screw compatible with MAN D enginesDiscover the cylinder screw with the comparison number 88904900031, a top-notch OEM spare part that ensures optimal performance for engines. This product is primarily categorized in the group of screws and has been developed to meet the demands of MAN D engines. Weighing only 0.001 kg, the cylinder screw is easy to handle and ideal for various applications in the marine and stationary sectors.Quality and reliability of our OEM spare partsThe comparison number 88904900031 stands for the highest expertise in providing OEM spare parts. Each component is manufactured under strict quality standards, ensuring that you receive a robust and reliable spare part. Our experience of over 25 years in the spare parts sector ensures you receive only the best components for your engines.
SCREW/BOLT - 88904900027 suitable for MAN D engines
Reliable Screw for Your ApplicationsDiscover our product, the screw with the comparison number 88904900027. This OEM spare part offers exceptional quality and reliability, ideal for engines in marine and stationary use. The screw is an indispensable component that helps you maximize the performance of your machines.
EYE BOLT - 88904410003 suitable for MAN D engines
Quality and Fit: Eye Bolt 88904410003Discover the premium eye bolt with the comparison number 88904410003, which is ideally suited to meet the requirements of MAN D engines. This product belongs to the screws category and constitutes an OEM replacement part. Weighing only 0.08 kg, the eye bolt offers the perfect combination of lightness and strength for your engines.
HEX SHOULDER STUD - 88904050214 suitable for MAN D engines
Hex Shoulder Stud for Best Performance Discover the hex shoulder stud with the comparison number 88904050214, which is ideal for your engines. This OEM spare part offers the highest quality and reliability. Weighing only 0.28 kg, it ensures a secure connection of components that are crucial for the longevity of your engine.Compatible with MAN D Engines The hex shoulder stud is suitable for MAN D engines and ensures a precise fit. This product is not only lightweight but also provides excellent stability, which is essential for the performance of your engines. Compared to aftermarket options that may not meet the same standards, you receive an OEM spare part that meets the stringent requirements of manufacturers.
HEX SHOULDER STUD - 88904050212 suitable for MAN D engines
Robust Hex Shoulder Stud for Your NeedsDiscover our Hex shoulder stud with the comparison number 88904050212, specifically designed for MAN D engines to meet your requirements. This OEM spare part ensures reliability in challenging environments. Weighing only 0.3 kg, it is easy to handle while providing the necessary robustness to meet the high demands in industrial and marine applications.Optimal Fit for MAN DThe Hex shoulder stud is an essential replacement part developed for MAN D engines. By using this OEM spare part, you enhance the efficiency of your engine and ensure the longevity of the entire system. Rely on our carefully selected products that are specifically suitable for diesel and gas engines.
HEX SHOULDER STUD - 88904050202 suitable for MAN D engines
Hex Shoulder Stud – Your Reliable Product Discover the Hex shoulder stud with the comparison number 88904050202, an essential OEM spare part that ensures reliability in your MAN D engines. Weighing 0.4 kg, this product provides a robust solution for the demanding requirements in marine and stationary applications. Our screw provides a precise fit and meets the stringent quality standards we apply to our OEM spare parts.Optimal Fit for MAN D Engines This Hex shoulder stud is specifically designed for MAN D engines. Its thoughtful construction ensures that your engines can operate efficiently and safely. At MOPA Motorparts, we take pride in offering you a product that is not only powerful but also durable. Rely on this spare part to enhance the performance and safety of your machines.
HEX SHOULDER STUD - 88904050201 suitable for MAN D engines
Reliable Hex shoulder stud for MAN D enginesDiscover our hex shoulder stud with the comparison number 88904050201, designed specifically for MAN D engines. This OEM replacement part belongs to the category of "screws" and provides a precise fit for your requirements.Robust component suitable for MAN D enginesThe hex shoulder stud weighs 0.45 kg and ensures stability and durability. This product is essential for the functionality of your engines, especially in marine and stationary applications. By using OEM replacement parts, you ensure optimal operating conditions for your machines.
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.