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:
COUNTERSUNK SCREW - 81900400028 suitable for MAN D engines
Precise Countersunk Screw for EnginesDiscover the countersunk screw 81900400028, an essential product for diesel and gas engines. This precisely manufactured OEM replacement part belongs to the group of "screws" and has been specifically designed for engines that must meet the highest demands. The use of countersunk screws ensures a reliable connection of the components and contributes to the optimal performance of your machines.
COUNTERSUNK SCREW - 81900400026 suitable for MAN D engines
Reliable Countersunk Screw for Your EnginesThe countersunk screw with the comparison number 81900400026 is an indispensable product for professional maintenance and repairs. This OEM spare part impresses with its precise fit and durability, allowing you to rely on the performance of your engines. As an OEM spare part, quality and compatibility are paramount to achieve optimal results.Optimal Fit for MAN D EnginesThe countersunk screw is suitable for MAN D engines, ensuring reliable and efficient performance. Compared to aftermarket solutions, this OEM spare part provides the assurance that it has been manufactured to the highest standards of the manufacturer. Trust this component to keep your engine systems in perfect condition.
ADJUSTING SCREW - 81900400024 suitable for MAN D engines
Precise Adjusting Screw: Comparison Number 81900400024Discover the adjusting screw with the comparison number 81900400024, designed for MAN D engines. This product belongs to the category of screws and offers an ideal solution for various applications. Weighing only 0.017 kg, this adjusting screw combines lightness and robustness to ensure optimal function of your engines.OEM Replacement Parts for Reliable PerformanceAs an OEM replacement part, the adjusting screw provides the highest quality and reliability. It is suitable for MAN D engines and meets all industrial standards. With this product, you can be assured that you are receiving a top-quality component that can be seamlessly integrated into existing systems. We only offer OEM replacement parts that meet the requirements of your applications.
COUNTERSUNK SCREW - 81900400015 suitable for MAN D engines
Reliable Countersunk Screw suitable for MAN D EnginesDiscover the countersunk screw with the comparison number 81900400015, an essential product in the category of screws. This reliable spare part is specifically designed to be suitable for MAN D engines. Weighing only 0.01 kg, the countersunk screw combines lightness and robustness, making it ideal for use in marine and stationary applications.OEM Quality for Your EnginesAs an OEM spare part, this countersunk screw offers the highest quality that meets the standards of original equipment manufacturers. By using spare parts of this quality, you ensure that your MAN D engines function optimally. Rely on the durability and performance that this product provides to enhance your engine's efficiency.
CYLINDER LOCK SCREW - 81900306000 suitable for MAN D engines
Cylinder lock screw: Reliability for Your EnginesDiscover the cylinder lock screw with the comparison number 81900306000, an extremely important product characterized by quality and durability. This OEM spare part is specially designed to enable optimal performance. Weighing 0.202 kg, it is lightweight yet robust, perfect for professional applications.Suitable for MAN D EnginesThe cylinder lock screw is suitable for MAN D engines and offers the quality you expect from an OEM spare part. Unlike aftermarket products, this replacement part ensures a perfect fit and meets the high standards of the original manufacturer. Invest in reliability and confidence when it comes to the performance of your engines.
CYLINDER SCREW - 81900300217 suitable for MAN D engines
Cylinder Screw: Efficient Product for Your EngineDiscover the cylinder screw with the comparison number 81900300217, a valuable OEM spare part that can be used for a variety of engines. This product offers you the reliability you need to optimize the operation of your machines.Suitable for MAN D Engines and MoreOur cylinder screw is suitable for MAN D engines and ensures an excellent fit and performance. It is one of the many top-quality OEM spare parts we offer in our range, making it a safe choice for all types of engines.
CYLINDER SCREW - 81900300210 suitable for MAN D engines
Cylinder screw compatible with MAN DDiscover the cylinder screw with the comparison number 81900300210, a reliable OEM spare part that provides a secure connection in your MAN D engines. This product is particularly suitable for use in demanding environments and ensures the longevity of your engine.Quality through internal controlsOur cylinder screw with the comparison number 81900300210 is compatible with MAN D and comes from a strict quality assurance process. These internal controls ensure that every OEM spare part meets our high standards and fulfills your requirements.
CYLINDER SCREW - 81900300209 suitable for MAN D engines
Cylinder screw compatible with MAN D enginesDiscover the cylinder screw, reference number 81900300209, an essential product compatible with MAN D engines. This OEM replacement part belongs to the group of screws and offers precision and durability. With this cylinder screw, you ensure that your engines function optimally.
CYLINDER SCREW - 81900300207 suitable for MAN D engines
Cylinder screw suitable for MAN D enginesDiscover our cylinder screw (comparison number: 81900300207), an essential product for your engines. This cylinder screw is required to optimize performance.Exact fit for your componentThe OEM replacement part is precisely manufactured and suitable for MAN D engines, allowing for an exact fit during installation. Rely on the quality you expect from OEM replacement parts. It noticeably enhances the reliability of your engine.
CYLINDER SCREW - 81900300206 suitable for MAN D engines
Premium Cylinder Screw for Your EnginesThe cylinder screw with the comparison number 81900300206 is a top-quality product that has been specifically designed to provide reliable performance. This OEM replacement part is precision-made and ideal for use in engines that must meet the highest standards.
CYLINDER SCREW - 81900300205 suitable for MAN D engines
Cylinder screw suitable for MAN D enginesThe cylinder screw with the comparison number 81900300205 is a top-quality OEM spare part that is perfectly suitable for MAN D engines. This cylinder screw offers exceptional strength and durability, which are crucial for the performance and reliability of your engines.
CYLINDER SCREW - 81900300204 suitable for MAN D engines
Cylinder screw compatible with MAN D enginesDiscover our cylinder screw with the reference number 81900300204, designed specifically to provide an optimal fit. This product is compatible with MAN D engines and offers an excellent solution for your engine spare parts needs.Excellent OEM spare parts for your enginesOur cylinder screw belongs to the category of OEM spare parts, offering you the quality and reliability essential in the marine and stationary fields. Rely on OEM spare parts instead of aftermarket options to ensure the longevity of your engines.
CYLINDER SCREW - 81900300202 suitable for MAN D engines
Premium Cylinder Screw for EnginesDiscover the cylinder screw that corresponds exactly to the reference number 81900300202. This OEM replacement part offers the highest precision and quality, a must-have for anyone relying on reliable engine components.
CYLINDER SCREW - 81900300201 suitable for MAN D engines
Cylinder Screw with Comparison Number 81900300201Discover the cylinder screw with the comparison number 81900300201, which is essential for the reliable functioning of engines. This OEM replacement part is specifically designed to optimize the performance of machines. Weighing 0.26 kg, this cylinder screw combines stability and durability, making it ideal for demanding applications.
COUNTERSUNK SCREW - 81900300199 suitable for MAN D engines
Precise Countersunk Screw for Your EnginesDiscover the countersunk screw according to comparison number 81900300199 – an essential product designed as an OEM replacement part for your engines. This screw, carefully processed and weighing only 0.01 kg, impresses with its precise functionality and durability.Ideally Suitable for MAN D EnginesOur countersunk screw is compatible with MAN D engines and ensures that your mechanical systems deliver optimal performance. In the category of screws, this product provides a stable connection and contributes significantly to the efficiency of your engines.
PAN-HEAD SCREW - 81900300198 suitable for MAN D engines
Pan-head screw with comparison number 81900300198Discover the pan-head screw with the comparison number 81900300198, an important OEM spare part specifically designed for the requirements of MAN D engines. This pan-head screw provides a reliable solution for your engines and ensures an excellent fit. Weighing only 0.01 kg, it is not only lightweight but also suitable for the most demanding applications.Essential component suitable for MAN D enginesThis pan-head screw is suitable for MAN D engines and constitutes an important component for their proper operation. The quality of our OEM spare parts meets high standards, ensuring that your engines remain efficient even under extreme conditions. Rely on the functionality you can expect.
CYLINDER SCREW - 81900300195 suitable for MAN D engines
Reliable Cylinder Screw for Marine and Stationary UseDiscover the cylinder screw with the comparison number 81900300195, specifically designed to meet your needs. This product is suitable for MAN D engines and represents an excellent choice for your applications. Weighing only 0.024 kg, this cylinder screw offers the combination of lightness and robustness needed for demanding environments.OEM Spare Parts for Demanding ApplicationsOur cylinder screw is a top-quality OEM spare part that ensures safety and reliability. The comparison number 81900300195 symbolizes the authenticity and precision that are crucial for the operation of your engines. Rely on the precise manufacturing and quality that distinguishes our OEM spare parts to optimize the efficiency of your system.
CYLINDER LOCK SCREW - 81900300194 suitable for MAN D engines
Cylinder lock screw – Your Trust in QualityDiscover our OEM spare part, the cylinder lock screw with the comparison number 81900300194. This product represents the perfect solution for your applications and ensures reliable locking in diesel and gas applications. Weighing only 0.008 kg, the cylinder lock screw is not only lightweight but also optimally suited to provide stability in demanding environments.Exactly the Right Solution for MAN D EnginesThe cylinder lock screw is compatible with MAN D engines and meets the highest standards. This OEM spare part offers the same reliability and performance that you need. The exact fit ensures that your applications work efficiently and safely without compromising on stability.
CYLINDER SCREW - 81900300193 suitable for MAN D engines
Cylinder Screw – Essential ComponentDiscover the cylinder screw with the comparison number 81900300193, an important OEM replacement part designed to optimize the performance of your machines. This product weighs only 0.02 kg and offers excellent compatibility for engines that are suitable for MAN D. The precise manufacturing of this component ensures reliable functionality even under demanding conditions.OEM Replacement Parts for Maximum EfficiencyThe cylinder screw with the comparison number 81900300193 is a product of the Original Equipment Manufacturer (OEM). Unlike aftermarket products, it offers the highest quality and compatibility. With OEM replacement parts, you can be assured that your MAN D engines deliver the performance you expect. Every detail matters, and the cylinder screw helps optimize the integrity of your engine.
CYLINDER LOCK SCREW - 81900300189 suitable for MAN D engines
Cylinder Lock Screw for Reliable ApplicationsDiscover the cylinder lock screw with the comparison number 81900300189, specifically designed for applications in motorized systems. The product is a reliable OEM replacement part and ensures that you can make optimal use of your machines' performance. This cylinder lock screw is essential for the maintenance of your equipment.Suitable for MAN D EnginesThe cylinder lock screw is suitable for MAN D engines and has been designed as an OEM replacement part to ensure optimal fit and functionality. Weighing only 0.2 kg, it offers an excellent combination of stability and efficiency. Rely on the quality and durability that this product provides.
CYLINDER LOCK SCREW - 81900300188 suitable for MAN D engines
Precise Cylinder Lock Screw for Engine OptimizationDiscover our cylinder lock screw, optimally designed to meet the requirements of engines. This OEM replacement part with the comparison number 81900300188 offers a perfect fit and is specifically developed to optimize engine functionality. Weighing only 0.01 kg, the cylinder lock screw provides stability and reliability across various applications.Reliable Application for MAN D EnginesThe cylinder lock screw is suitable for MAN D engines and helps keep your machines always operational. Rely on a robust solution that enhances both the performance and lifespan of your engines. Quality and functionality are at the forefront of this product, contributing to a smooth application.
CYLINDER LOCK SCREW - 81900300187 suitable for MAN D engines
Cylinder lock screw suitable for MAN D enginesDiscover the cylinder lock screw with the comparison number 81900300187 – an indispensable product specifically designed to support the functionality of engines suitable for MAN D engines. This innovative product belongs to the category of screws and ensures a reliable fastening. Weighing only 0.007 kg, this OEM spare part is lightweight yet robust enough to provide optimal performance even under challenging conditions.
CYLINDER SCREW - 81900300185 suitable for MAN D engines
Cylinder screw 81900300185 – Your reliable productDiscover the cylinder screw with the comparison number 81900300185, specifically designed for MAN D engines. This OEM replacement part offers the reliability and longevity you expect from a manufacturer. Weighing only 0.005 kg, our cylinder screw provides optimal performance with minimal excess weight.Screws: Essential component suitable for MAN D enginesThe cylinder screw is an indispensable component suitable for MAN D, crucial for the stability of your engines. Whether you are working in the maritime sector or in stationary applications, our product ensures that your diesel and gas engines operate efficiently. Trust in the excellence of our products, specifically designed for use in engines.
CYLINDER SCREW - 81900300184 suitable for MAN D engines
Cylinder screw with comparison number 81900300184Discover the cylinder screw with comparison number 81900300184, an essential product compatible with MAN D engines. This cylinder screw is part of our product group screws and offers a reliable solution for use in various applications. With a weight of only 0.01 kg, it impresses with its compact design and remarkable stability.Quality according to OEM standardsWith us, you receive OEM replacement parts that meet the high standards of the industry. The cylinder screw, suitable for MAN D engines, enables optimal functionality of your diesel or gas engine. Trust in the quality of OEM replacement parts that are significant for your engines.
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.