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:
CYLINDER SCREW - 81900300063 suitable for MAN D engines
Cylinder screw with comparison number 81900300063Discover the cylinder screw with the comparison number 81900300063, which meets the highest standards as an OEM replacement part. This product is specially designed to function reliably in engines compatible with MAN D. The use of this replacement part ensures that your system benefits from top-notch quality, as opposed to aftermarket products.
CYLINDER SCREW - 81900300061 suitable for MAN D engines
Robust Cylinder Screw for Your Applications Discover the cylinder screw with the comparison number 81900300061, specifically designed for use in engines. This OEM replacement part offers excellent fit and meets the highest demands required in both the marine and stationary sectors.
CYLINDER SCREW - 2910022207 suitable for Bosch engines
Robust Cylinder Screw for Engine ApplicationsDiscover the cylinder screw with comparison number 2910022207, an essential product for the optimal functioning of your engines. This cylinder screw is suitable for MAN D engines and provides a reliable connection in demanding applications. Weighing only 0.008 kg, it is lightweight yet strong enough to withstand the stresses in marine and stationary use.Precision for MAN D EnginesThis cylinder screw is a significant OEM spare part specifically designed for the requirements of stationary and marine-based systems. By using top-quality materials and precise manufacturing characteristics, it meets the demands that engines like MAN D require. Rely on the quality of our products, which offer both safety and durability.
PAN-HEAD SCREW - 81900300059 suitable for MAN D engines
Pan-head screw for optimal applicationThe pan-head screw with the comparison number 81900300059 is an essential product for anyone who values quality. This OEM spare part impresses with excellent craftsmanship specifically designed to meet the demands of engines. As a pan-head screw, it ensures secure fastening and a long lifespan, which is important for the smooth operation of your machines.
PAN-HEAD SCREW - 81900300058 suitable for MAN D engines
Pan-head Screw – Perfect Component for Your EnginesDiscover the pan-head screw with the reference number 81900300058, a reliable OEM spare part that fits MAN D engines. This screw weighs only 0.01 kg and combines lightweight with durability. Thanks to its quality, it is ideal for applications in the marine and stationary sectors, thus contributing to the optimal function of your engines.OEM Spare Parts – Quality at the Cutting Edge of TechnologyThe pan-head screw meets the high standards you can expect from OEM spare parts. Unlike aftermarket products, our spare parts offer precise fit and longevity. With the reference number 81900300058, you have a secure and consistent solution for your requirements.
PAN-HEAD SCREW - 81900300054 suitable for MAN D engines
Excellent Pan-head Screw for Optimal Engine PerformanceDiscover the Pan-head screw with the comparison number 81900300054, which is the ideal solution for your needs in the field of engines. This product is suitable for MAN D engines and offers you precise fitment that is essential for the longevity of machines. Weighing 0.01 kg, this Pan-head screw is easy to handle and optimal for various applications.
CYLINDER SCREW - 81900300053 suitable for MAN D engines
Cylinder screw with comparison number 81900300053Discover our cylinder screw with the comparison number 81900300053, an indispensable OEM replacement part suitable for MAN D engines. This product combines precision and quality, specifically tailored to meet the demands in marine and stationary applications. Weighing only 0.005 kg, the cylinder screw ensures easy handling and installation.Excellent fit for all applicationsThe cylinder screw is optimally suited for use in MAN D engines and provides a reliable connection that keeps your machines running. This OEM replacement part offers the quality you can expect from an experienced manufacturer in the field of engine components.
SCREW PLUG - 81900300051 suitable for MAN D engines
Screw Plug for Optimal Use Discover the screw plug with the reference number 81900300051, specifically designed to meet the demands of engines. This product weighs only 0.02 kg and offers an ideal solution for demanding applications in marine and stationary technology as well as in the locomotive sector.Perfect Fit for MAN D Engines The screw plug is compatible with MAN D engines and ensures you receive a top-quality OEM spare part. Unlike aftermarket solutions that often vary, our OEM spare part offers excellent fit and durability. By using OEM components, you invest in the reliability of your engines.
SCREW PLUG - 81900300050 suitable for MAN D engines
Quality Screw Plug for Your ApplicationThe screw plug with the comparison number 81900300050 is an essential OEM spare part specifically designed to ensure reliable functionality for your engines. This product belongs to the category "Screws" and offers optimal precision. Weighing only 0.01 kg, this screw plug is particularly lightweight and ideal for marine and stationary applications.Suitable for MAN D – Performance in Every DetailThis screw plug is suitable for MAN D engines and meets the high standards adhered to in production. Thus, the quality of the OEM spare parts is impeccable. Rely on the reliability and stability that this product offers to enhance the efficiency of your engines.
HEXAGON BOLT - 81900200006 suitable for MAN D engines
Precise Hexagon Bolt – Comparison Number 81900200006 The hexagon bolt with the comparison number 81900200006 is an OEM spare part that has been specifically designed to ensure optimal performance. This product is suitable for MAN D engines and demonstrates the highest reliability in marine and stationary applications. Weighing just 0.01 kg, it allows for easy handling without compromising stability.Optimal Connection Technology for MAN D Engines The hexagon bolt is an essential component designed to fit MAN D engines. Its precise design ensures that all engine components are seamlessly connected. This connection technology not only enhances durability but also boosts the efficiency of your engines. Rely on the quality that OEM spare parts can offer.
FITTING BOLT - 81900100066 suitable for MAN D engines
Robust Fitting Bolt for Reliable PerformanceDiscover the fitting bolt with the comparison number 81900100066, an indispensable OEM replacement part specifically designed for compatible with MAN D engines. With this fitting bolt, you ensure a precise connection within the engine components, enabling optimal functionality. Our products stand for top quality and durability, which are essential for the demanding operation of engines.Precision Fit for MAN D EnginesThis fitting bolt is perfectly suited and thus compatible with MAN D engines. Weighing only 0.004 kg, it is not only lightweight but also extremely stable. This makes it ideal for demanding applications in shipping as well as in stationary use. Rely on OEM replacement parts that offer the safety and efficiency your engines need.
FITTING BOLT - 81900100060 suitable for MAN D engines
Quality of the Fitting Bolt at a GlanceDiscover the fitting bolt with the comparison number 81900100060, an essential OEM replacement part for your engines. This fitting bolt is characterized by its excellent workmanship and ensures optimal performance. It has been designed specifically for MAN D engines and meets the highest demands in challenging applications.
SCREW/BOLT - 81900016014 suitable for MAN D engines
Robust Screw – OEM Replacement Part for EnginesDiscover the screw with the comparison number 81900016014, an essential OEM replacement part that ensures optimal function for your engines. This screw impresses with its high quality and is offered specifically for MAN D engines, allowing you to rely on the reliability of your drive.
HEXAGON BOLT - 81900016013 suitable for MAN D engines
Reliable Hexagon Bolt for EnginesDiscover our hexagon bolt with the comparison number 81900016013, which is suitable for MAN D engines. This product belongs to the group of "screws" and delivers the required reliability essential for optimal engine performance. Weighing only 0.02 kg, this hexagon bolt is lightweight and robust for various marine and stationary applications.Sturdy Connection: OEM Replacement Parts for EnginesThe hexagon bolt 81900016013 is an OEM replacement part that provides the quality you expect for the smooth operation of your engines. Suitable for MAN D engines, this replacement part ensures durability and efficiency. The use of original equipment manufacturer quality ensures that you can always rely on the best components.
- 81900010465 suitable for MAN D engines
Quality of the Hex Shoulder Stud Discover the Hex shoulder stud, an excellent product marked by the comparison number 81900010465. This OEM replacement part offers exceptional fit and functionality.Application in MAN D Engines Our Hex shoulder stud is suitable for MAN D engines and optimizes the performance of your machines. Rely on this precise component specifically designed for diesel and gas engines.
- 81900010460 suitable for MAN D engines
Hex Shoulder Stud for EnginesDiscover the Hex shoulder stud, which, as a product with the comparison number 81900010460, represents an excellent replacement part. This component stands for durability and efficiency and is specifically designed for demanding applications in engines.Suitable for MAN D EnginesThe Hex shoulder stud is suitable for MAN D engines, ensuring an exact fit and functionality. With this replacement part, you can ensure that your engines remain high-performing.
- 81900010459 suitable for MAN D engines
Reliable OEM Replacement Part for Engines Discover the Hex shoulder stud, an OEM replacement part specifically designed for your needs in engine technology. The reference number 81900010459 allows you to easily identify this product and ensures quality in your application.
SCREW/BOLT - 81900010455 suitable for MAN D engines
Screw suitable for MAN D enginesDiscover our OEM replacement part, the screw with the part number 81900010455, suitable for MAN D engines. This product ensures a precise fit and impresses with excellent performance characteristics. Rely on this component, which is specifically designed for demanding applications.Reliability and QualityThe screw, listed under the part number 81900010455, offers the quality you can expect from an OEM replacement part. It is perfectly suited for engines and ensures a stable connection in your MAN D engine. Count on a product selection based on over 25 years of experience.
SCREW/BOLT - 81900010454 suitable for MAN D engines
Quality Screw for High-Performance EnginesDiscover the screw with the comparison number 81900010454, an essential product for your engines. This screw is suitable for MAN D engines and provides reliable functionality. It is precision-manufactured to support optimal performance.
SCREW/BOLT - 81900010452 suitable for MAN D engines
Excellent spare part for MAN D enginesDiscover our screw/bolt with the comparison number 81900010452. This OEM spare part is precisely compatible with MAN D engines and offers the highest reliability. Thanks to the precision of the screw/bolt, the performance of your engines is optimally supported, allowing you to rely on quality.
HEXAGON BOLT - 81900010451 suitable for MAN D engines
Robust Hexagon Bolt for EnginesDiscover the hexagon bolt with the comparison number 81900010451, which belongs to the article group screws. This product is ideal if you are looking for reliable spare parts for your engines.Suitable for MAN D Engines – Quality That ConvicesThis hexagon bolt is suitable for MAN D engines and offers you outstanding performance and durability. As an OEM spare part, this bolt ensures optimal efficiency compared to aftermarket options that often do not provide the same reliability.
SCREW/BOLT - 81900010449 suitable for MAN D engines
Robust Screw for MAN D EnginesDiscover the screw with the comparison number 81900010449, an excellent OEM replacement part specifically designed to ensure a perfect fit in engines. This product stands out for its superior quality and supports the functionality of your machines.
SCREW/BOLT - 81900010448 suitable for MAN D engines
High-Quality OEM Replacement Part for Engine OptimizationDiscover our product, the screw/bolt with the comparison number 81900010448, suitable for MAN D engines. This OEM replacement part impresses with its top-notch quality and precise fit, which are critical for reliable engine performance.
SCREW/BOLT - 81900010447 suitable for MAN D engines
Quality Assurance with the Screw suitable for MAN D EnginesOur screw with the comparison number 81900010447 is a precise OEM replacement part designed for MAN D engines. This product offers optimal fit and durability that benefits your engines.Efficient OEM Replacement Part for Performance EnhancementThe replacement part with the comparison number 81900010447 belongs to the group of screws and is specifically manufactured for MAN D engines. Our OEM replacement parts ensure the best performance of your engines in marine and stationary applications.
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.