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:
STRESS BOLT - 51900300026 suitable for MAN D engines
Anti-fatigue cheese-head screw – Efficient Connecting ElementDiscover our anti-fatigue cheese-head screw with the comparison number 51900300026 – an OEM replacement part suitable for MAN D engines. This product offers excellent specifications that support the performance of your engines in stationary or marine applications. With compact dimensions of 8.7 cm in length and width and 2.5 cm in height, along with a weight of 0.138 kg, the anti-fatigue cheese-head screw is both functional and easy to handle.Quality Meets Baltic Sea CapabilityThe anti-fatigue cheese-head screw adheres to the highest standards of the Original Equipment Manufacturer (OEM). Products suitable for MAN D engines are designed to ensure a perfect fit and functionality. With the comparison number 51900300026, you can be confident in using a flawless replacement part – modified for sustained operational capability.
DODECAGON COLLAR SCREW - 51900210004 suitable for MAN D-engines
Quality for Engines: Dodecagon Collar ScrewThe dodecagon collar screw is an essential OEM spare part, perfectly suited for the pump sector. With the comparison number 51900210004, this product offers excellent fit accuracy. It is optimally compatible with MAN D engines, allowing you to rely on the dependable performance of your machines. Weighing only 0.11 kg, it is a lightweight yet robust component.Special Features of the ProductWhether you need spare parts for diesel or gas engines, our selection impresses with outstanding quality. The dodecagon collar screw, suitable for MAN D, delivers the optimal functionality you expect. Compared to aftermarket products, our OEM spare part stands out for its durability and precision.
EXTERNAL HEX ROUND BOLT - 51900200500 suitable for MAN D-engines
Excellent External Hex Round Bolt – Your Innovative Replacement PartThe external hex round bolt with the reference number 51900200500 is a top-quality OEM replacement part, reliably meeting the functional requirements of engines. With meticulous manufacturing, this external hex round bolt combines technical perfection and remarkable durability – essential prerequisites for use in various applications, particularly in the marine and stationary sectors.
- 51900200490 suitable for MAN D-engines
Robust Product: External Hexagon Bolt M18x1.5x91Discover our External Hexagon Bolt M18x1.5x91 with the reference number 51900200490. This part is suitable for a variety of applications in engines and offers a high level of strength and durability to consistently meet your requirements.Suitable for MAN D Engines: Application and BenefitsThis high-performance product is suitable for MAN D engines and meets high standards of quality and operational reliability. Our External Hexagon Bolt is a top-tier engine drive component specifically developed to meet the demands of industry-leading engines.
EXTERNAL HEX ROUND BOLT - 51900200488 suitable for MAN D engines
Reliable External Screw – 51900200488 Discover the external hexagon screw M18x2x246 with the comparison number 51900200488. This product offers you precise fit and is specifically designed for use in MAN D engines. Rely on the thoughtful design that provides optimal functionality and enhances the efficiency of your engines.Quality Without Compromise Our OEM replacement part impresses with excellent materials and workmanship. It offers the reliability you expect from a component that is suitable for leading manufacturers such as MAN D. Take advantage of this for the maintenance of your engines to ensure long-term stability.
- 51900200487 suitable for MAN D-engines
Robust External Hexagon Screw for Industrial ApplicationsThe external hexagon screw m18x1.5x91 is an indispensable product, perfectly suitable for MAN D engines. With the comparison number 51900200487, our OEM replacement part offers the highest quality that meets the demands of professional applications and reliably supports your engines.Quality from the Source: OEM vs. AftermarketOur OEM replacement part differs significantly from aftermarket solutions. As a product of the manufacturer, it ensures the best possible fit and performance, ideal for both your EMERGENCY and regular operational standards.
- 51900200480 suitable for MAN D-engines
Excellent External Hexagon ScrewDiscover our external hexagon screw M16x1.5x246-11.9+, a reliable replacement part available under the comparison number 51900200480. This product offers you excellent quality that you won't want to miss in your professional environment.
EXTERNAL HEX ROUND BOLT - 51900200470 suitable for MAN D-engines
Our Informative Product: Comparison Number 51900200470Discover the External hex round bolt with the comparison number 51900200470, an indispensable solution for engine operators. With its precise dimensions and solid design, this product is specifically developed to meet the requirements in marine and stationary applications. The spare part weighs 0.489 kg and has compact dimensions of 26.5 cm in length and width, as well as 3.1 cm in height.Optimal Fit for MAN D EnginesThis External hex round bolt is ideally suited and compatible with MAN D engines, ensuring excellent performance. With its OEM standard, it meets the stringent requirements of the industry. Rely on the robust quality of this OEM spare part to keep your device reliably operational and thus avoid longer downtime.
- 51900200469 suitable for MAN D-engines
External Hexagon Bolt Suitable for Your EnginesDiscover our external hexagon bolt m16x1.5x156-11.9, available under the comparison number 51900200469. This OEM replacement part is optimally suitable for MAN D engines and offers long-lasting and reliable performance in demanding applications. Rely on the quality of the components that are crucial for your engines.
HEX COLLAR BOLT - 51900200466 suitable for MAN D engines
Reliable Hex Socket Bolt for Various EnginesDiscover the Hex Socket Bolt m6x12-10.9-man183-, an essential OEM replacement part. This bolt with the comparison number 51900200466 ensures secure fixation and effective force transmission in your MAN D engines. Ideal for numerous applications in diesel and gas engines, it impresses with its precise workmanship and durability.Excellent Product for Special ApplicationsThis OEM replacement part is suitable for MAN engines and is built to be particularly robust. The hex socket bolt has a length of 12 mm, making it the perfect choice for use in marine and stationary applications. Rely on the quality that our OEM replacement parts provide, and ensure that your engines are always ready for use.
EXTERNAL HEX ROUND BOLT M14X2X152 - 51900200465 suitable for MAN D-engines
Excellent OEM Replacement Part for Installation The external hex round bolt m14x2x152 with the comparison number 51900200465 is an indispensable product for the stable installation of your engines. This OEM replacement part is manufactured with the utmost precision to support the functionality of your systems. Whether in marine or stationary applications, this product meets the demanding industrial requirements.Suitable for MAN D Engines This replacement part is excellent for applications compatible with MAN D engines. The robust quality and precise fit of this bolt ensure that your systems operate smoothly and optimal performance can be achieved.
- 51900200454 suitable for MAN D-engines
OEM Quality for Various Applications Experience our top-notch product: the outer hexagon screw M16x1.5x246-11.9f, suitable for MAN D engines. The comparative number 51900200454 allows you to clearly identify and reliably acquire this OEM replacement part.Reliability through OEM Replacement Parts Our outer hexagon screw, as an OEM replacement part, ensures high efficiency and durability. By using OEM quality replacement parts, you minimize potential downtime of your engines.Similar Applications Rely on Our Parts The items we offer are versatile and designed to meet the demands of engines reliant on performance and reliability. We provide selected replacement parts suitable for MAN D engines and similar models.
- 51900200453 suitable for MAN D-engines
External Hexagon Bolt M16x1,5x216-11.9: Perfect SolutionDiscover our external hexagon bolt M16x1,5x216-11.9, an OEM replacement part specifically designed for your needs. The comparison number 51900200453 allows for easy identification of this quality product. Our products are ideally suited for diesel and gas engines.Quality with Comparison Number 51900200453The replacement part is compatible with MAN D engines and belongs to the category "Lines and pipes". By choosing high-quality OEM replacement parts, you benefit from the best performance. Compromises are not an option here!
EXTERNAL HEX ROUND BOLT - 51900200449 suitable for MAN D-engines
Premium Replacement Part for Maritime ApplicationsDiscover the External hex round bolt, an essential component of your technical solutions, suitable for versatile applications. The comparison number 51900200449 ensures that you make the right choice when selecting your replacement parts. This product meets the highest standards and integrates perfectly into systems that must meet immense electrical requirements.Exact Measurements for Perfect PerformanceWeighing 0.399 kg and with detailed dimensions of 22 cm in length, 22 cm in width, and 3 cm in height, the External hex round bolt demonstrates that precision is central to its efficiency. As an OEM replacement part, it fits ideally into systems designed for MAN D engines. Rely on the exact fit that enhances the performance of your machines and maximizes uptime.
HEX COLLAR BOLT - 51900200435 suitable for MAN D-engines
Optimal Performance with the Hex Collar BoltThe hex collar bolt with the comparison number 51900200435 is an essential OEM replacement part designed to achieve reliable performance suitable for MAN D engines. This product impresses with its high quality standards and specific fit in various applications, both in maritime and stationary sectors. The careful manufacturing of the hex collar bolt ensures seamless operation, allowing your engines to run smoothly.Precise Dimensions for Easy InstallationWith a length of 18 cm, a width of 18 cm, and a height of 3 cm, the hex collar bolt has ideal dimensions for easy handling. Weighing 0.124 kg, it is light enough to facilitate transport and maintenance while still providing the necessary robustness. This customized design allows for comfortable installation in your application.
EXTERNAL HEX ROUND BOLT - 51900200426 suitable for MAN D-engines
Essential External Hex Round Bolt in DetailDiscover the External hex round bolt with the comparison number 51900200426, an important OEM replacement part that can be used for the assembly of your engines. This bolt is suitable for MAN D engines and meets high quality standards. Weighing 0.194 kg and with compact dimensions of 11 cm in length and width and 3 cm in height, it represents the ideal solution for various applications.
CYLINDER HEAD BOLT - 51900200421 suitable for MAN D engines
Cylinder Head Bolt suitable for MAN D EnginesSecure the reliable cylinder head bolt with the comparison number 51900200421, which is ideally suited as a matching component for MAN D engines. As an important element, this spare part belongs to our wide range of high-quality OEM spare parts that are manufactured to high standards. Experience the reliability and sustainability that this product offers for use in demanding applications.Advantages and Features of the Cylinder Head BoltThis cylinder head bolt weighs 0.47 kg and boasts compact dimensions of 25.9 cm in length and width, as well as 3 cm in height. The thoughtful design ensures optimal function and durability of the product. As an OEM spare part, the bolt meets all important quality criteria and is specifically adjusted to the requirements of the engines suitable for MAN D.
ELONGATING HEX COLLAR BOLT - 51900200419 suitable for MAN D engines
Elongating Hex Collar Bolt for MAN D EnginesDiscover the elongating hex collar bolt with the comparison number 51900200419, a crucial OEM spare part for your needs. This sophisticated screw is suitable for MAN D engines and offers a reliable solution in demanding applications due to its precise processing. Weighing 0.133 kg, its dimensions of 9.5 cm in length, 9.5 cm in width, and 2.6 cm in height are optimally designed for effective use.Ideally Suited for Challenging ApplicationsOur elongating hex collar bolt is designed to provide stable support in extreme operating conditions. As a proven OEM spare part, it meets the stringent requirements for power transmission and durability. Rely on this product, which has been specifically developed to be suitable for MAN D engines.
HEX COLLAR BOLT - 51900200418 suitable for MAN D-engines
Optimal Solution: Hex Collar Bolt Discover the Hex collar bolt with the comparison number 51900200418, which has been specifically designed to meet the highest demands. As an essential OEM spare part, it plays a central role in the assembly and repair of engines. This structure ensures a stable and reliable connection, which is crucial for the functionality of application systems and is specifically designed to be compatible with MAN D engines.
EXTERNAL HEX ROUND BOLT - 51900200417 suitable for MAN D-engines
External Hex Round Bolt with Comparison Number 51900200417Discover our External Hex Round Bolt with the comparison number 51900200417 – a premium spare part ideally suited to keep your engines powerful and reliable. This External Hex Round Bolt belongs to the article group Screws and is particularly recommended for professional applications where precision is essential.Suitable for MAN D Engines – effective and versatileThe bolt is designed for MAN D engines and thus represents a sensible addition to your inventory. Weighing only 0.047 kg and with compact dimensions of 12.9 cm in length and width, as well as a height of 1.7 cm, it can be easily integrated into existing systems. This ensures a reliable connection and allows you to complete your engine assemblies with ease.
EXTERNAL HEX ROUND BOLT - 51900200416 suitable for MAN D-engines
Exceptional External Hex Round Bolt for ApplicationsDiscover the excellent external hex round bolt with reference number 51900200416. This product offers a reliable solution for your applications. As an essential part of the screws category, the external hex round bolt is manufactured suitable for MAN D engines. Stringent quality controls ensure that you can rely on long-lasting performance.Better Solutions for MAN D EnginesWeighing 0.485 kg, the external hex round bolt not only provides robustness but also ease of handling. This innovative bolt is essential for repair and maintenance work on engines. The product delivers optimal performance in conjunction with diesel and gas engines, particularly in marine and stationary applications.
- 51900200415 suitable for MAN D-engines
Quality Product for Efficient ApplicationsOur external hexagon screw m18x1.5x79-10.9-e with the comparison number 51900200415 is essential for efficient applications in engine technology. It offers high stability and is essential for engine maintenance.Suitable for MAN D EnginesThe OEM replacement part is suitable for MAN D engines and allows you to rely on top quality. Compared to aftermarket alternatives, our OEM replacement parts ensure the reliability and fit required in engine technology.
EXTERNAL HEX ROUND BOLT - 51900200409 suitable for MAN D-engines
External hex round bolt for perfect engine assemblyDiscover the external hex round bolt with the comparison number 51900200409, which has been specially designed to harmonize optimally with engines. This product belongs to the category of screws and is an indispensable spare part suitable for MAN D engines. Its reliable function is ensured by its high-quality composition.Suitable for MAN D: Essential addition to your systemThe comparison number 51900200409 represents an OEM spare part that meets the highest standards. As an OEM spare part, it offers quality and durability, allowing you to fully utilize the functions of your engines. This product has been ideally designed for MAN D engines.
HEX COLLAR BOLT - 51900200407 suitable for MAN D-engines
Robust Hex Collar Bolt for MAN D EnginesDiscover the Hex collar bolt with the comparison number 51900200407 – an indispensable OEM replacement part, suitable for MAN D engines. This solid component is designed for use in diesel and gas engines, providing reliable performance in demanding operating conditions.Product Details: Lightweight and Strong ConstructionWeighing only 0.013 kg, this OEM replacement part is optimal for your application. The Hex collar bolt demonstrates that even lightweight components can perform excellently during assembly in engines. All our replacement parts, including this bolt, stand for quality and are produced under strict standards.
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.