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:
- 51903106035 suitable for MAN D engines
Drain plug compatible with MAN D engines Discover the drain plug compatible with MAN D engines, identified by the comparison number 51903106035. This product falls under the category of screws and is an essential component for the safe drainage of your engine.Quality products through OEM spare parts Our OEM spare part meets the highest standards for replacement parts specifically designed for engines. The drain plug ensures efficient operation, allowing you to rely on the performance of your machines.
- 51903106032 suitable for MAN D engines
Discover the Drain Plug for MAN D EnginesDiscover our drain plug, which is marked with the comparison number 51903106032 and is suitable as an OEM replacement part for MAN D engines. This product plays an essential role in the reliable operation of your engines and meets the highest quality standards.Perfect Fit for MAN D EnginesThe drain plug is suitable for MAN D engines and offers an optimal solution for your requirements. As an OEM replacement part, it provides excellent accuracy and durability that you would expect from a top-quality product.
- 51900206005 suitable for MAN D engines
First-Class External Hex Round Bolt for Your EnginesDiscover the external hex round bolt with the comparison number 51900206005, an essential product for the maintenance and upkeep of engines. This bolt is suitable for MAN D engines and belongs to the group of screws. It offers excellent fit accuracy and is an indispensable component for the smooth operation of your operations.OEM Spare Parts for Maximum PerformanceOur external hex round bolt is an OEM spare part, meaning it meets the high quality standards of the manufacturers. Unlike aftermarket products, which can vary in quality, this spare part provides reliable functions and long-lasting performance. Rely on OEM spare parts for your engines and benefit from the best quality.
HEX COLLAR BOLT - 51900200528 suitable for MAN D engines
Hex collar bolt with reference number 51900200528Discover the hex collar bolt with reference number 51900200528, an essential OEM replacement part specifically designed to meet the needs of engines. This product offers the quality you can expect from an Equipment Manufacturer and ensures that your applications operate reliably.
EXTERNAL HEX ROUND BOLT - 51900200356 suitable for MAN D engines
Premium External Hex Round Bolt for Your EnginesDiscover the external hex round bolt with the comparison number 51900200356. This product is an essential OEM replacement part that offers you the reliability you need. The screw belongs to the category screws and is the perfect component to optimize the performance of your machines.Suitable for MAN D EnginesOur external hex round bolt is suitable for MAN D engines and ensures that you can rely on the highest accuracy and durability. The use of OEM replacement parts gives you the confidence that your engine runs optimally. Trust in the tested quality of this product, which has been specifically developed for the requirements of your machines.
EXTERNAL HEX ROUND BOLT - 51900200227 suitable for MAN D engines
External Hex Round Bolt with Comparison Number 51900200227Discover our external hex round bolt with the comparison number 51900200227. This OEM spare part is suitable for MAN D engines and ensures that your engines always function optimally. Manufactured with a sturdy design, this product offers the reliability you expect from an OEM spare part.The Importance of Our External Hex Round BoltThe external hex round bolt with the comparison number 51900200227 belongs to the category of screws. This component is essential for the maintenance and reliable operation of engines that are designed for MAN D. Rely on the excellence of our OEM spare parts to ensure the longevity of your machines.
HEXAGON BOLT - 51900010245 suitable for MAN D engines
Robust Hexagon Bolt under Comparison Number 51900010245Discover the Hexagon bolt that is available as an OEM spare part under the comparison number 51900010245. This product provides you with the necessary components to ensure the performance of your engines.
HEXAGON BOLT - 5179900401 suitable for MTU engines
Robust Hexagon Bolt: Quality for Your EnginesDiscover the hexagon bolt with the comparison number 5179900401, an OEM replacement part specifically designed for the needs of engines. This product ensures optimal functionality for your machines and is particularly durable. The comparison number 5179900401 signifies the quality and reliability of this component.Optimally Adapted to MTU EnginesOur hexagon bolt is suitable for MTU engines and offers outstanding performance through its precise fit. OEM replacement parts ensure that you only get the best for your engines. Each screw is manufactured with the utmost care to meet high standards.
CONTROL ROD - 2416056081 suitable for Bosch engines
Precise Control Rod for Your RequirementsDiscover the control rod with the comparison number 2416056081, a central OEM spare part that optimally supports your engines. This product belongs to the category of screws and is specifically designed to enhance engine performance. Weighing only 0.13 kg, the control rod impresses with both its lightweight and robustness.
SCREW/BOLT - 51103030999 suitable for MAN D engines
Reference Number 51103030999: Screw/Bolt Suitable for MAN D EnginesThe product with reference number 51103030999 is a screw/bolt suitable for MAN D engines. With compact dimensions of 2.7 cm length, 2.7 cm width, and 2.5 cm height, as well as a weight of 0.04 kg, this screw/bolt meets high standards for precision fit and functionality. This product belongs to the category Screws and is specially designed for use in engines.OEM Replacement Part with Precision Fit for MAN D ManufacturerAs an OEM replacement part, the screw/bolt with reference number 51103030999 ensures precise manufacturing, fitting the MAN D manufacturer specifications. Compared to aftermarket products, the high quality is evident through exact measurements and carefully selected materials. Those seeking replacement parts suitable for MAN D engines will find this product to be a reliable solution for consistently secure connections.
- 51101080015 suitable for MAN D engines
Premium Pressure Screw with Comparison Number 51101080015Our pressure screw with the comparison number 51101080015 is a reliable OEM replacement part specifically designed to optimize engine performance. This product ensures high efficiency and reliability and is ideal for use in various applications.Suitable for MAN D EnginesThe pressure screw is suitable for MAN D engines and contributes to the optimal functionality of your machinery. With the comparison number 51101080015, you ensure the quality you need for your diesel or gas engines. Trust in our products and their precise fit.
HEXAGON BOLT - 4479907004 suitable for MTU engines
Hexagon bolt suitable for MTU enginesOur hexagon bolt with the comparison number 4479907004 is a reliable OEM spare part specifically designed for use in MTU engines. This product provides the necessary stability and efficiency that you need for the operation of your machines.Optimal solution for enginesThis hexagon bolt fits perfectly for various applications in marine and stationary environments. As a top-quality OEM spare part, it ensures that your engines run smoothly and effectively to minimize downtime.
SCREW/BOLT - 404L05012 suitable for MTU engines
Discover Screw with Comparison Number 404L05012Discover the screw with the comparison number 404L05012, an OEM spare part suitable for MTU engines. This product provides an excellent fit and reliable performance for your marine and stationary applications.
SCREW/BOLT - 0230420058 suitable for MTU engines
Reference Number 0230420058: Screw/Bolt as Product Suitable for MTU EnginesThe product with reference number 0230420058 is a screw/bolt suitable for MTU engines of the 183 series. This OEM replacement part was specifically developed to fit the 12V183TE52 engine type and ensures precise fit and secure function. As OEM replacement parts, our products deliver the quality customers expect during maintenance and servicing of MTU engines.Screw/Bolt Suitable for MTU Manufacturer: Compact Dimensions and Low WeightThis screw/bolt suitable for MTU engines has dimensions of 2.9 cm length, 2.9 cm width, and 2.8 cm height, weighing only 0.038 kg. The product belongs to the article group Screws and meets the requirements of a durable OEM replacement part that can be safely used in MTU series.
FLANGE SCREW - 3852591 suitable for Volvo/Volvo Penta engines
Hex Flange Bolt for Reliable EnginesDiscover the Hex flange bolt with the comparison number 3852591, an OEM replacement part that helps you optimize the performance of your engines. This bolt is suitable for Volvo/Volvo Penta engines and offers an excellent level of quality. Weighing only 0.013 kg, the Hex flange bolt is ideal for applications in the marine and stationary sectors.Premium Replacement Parts for the Highest DemandsWith us, you only receive OEM replacement parts that are characterized by high precision and durability. Unlike aftermarket products, our parts provide optimal functionality for your engines. With the comparison number 3852591, we ensure that this product has been carefully selected to meet the highest standards.
SCREW/BOLT - 3832044 suitable for Volvo/Volvo Penta engines
Premium Screw in High QualityDiscover the screw with comparison number 3832044, designed for use in engines. This product belongs to the category of screws and offers excellent precision, which is essential in marine and stationary applications.Replacement Part for Your NeedsThis replacement part, suitable for Volvo/Volvo Penta engines, impresses with its perfect fit and top-quality materials. Rely on our many years of experience in providing replacement parts for diesel and gas engines and choose our product for your maintenance and repair projects.
SCREW/BOLT - 3831786 suitable for Volvo/Volvo Penta engines
First-Class Screw Suitable for Volvo/Volvo Penta EnginesDiscover our screw with the comparison number 3831786, specifically designed to be suitable for Volvo/Volvo Penta engines. This part offers an optimal fit and performance, ideal for applications in marine and stationary environments as well as in locomotives.
STUD - 3831678 suitable for Volvo/Volvo Penta engines
STUD with the comparison number 3831678 suitable for Volvo/Volvo Penta engines
- 36900300003 suitable for MAN D engines
Flat Head Bolt m8x20-10.9 for MAN D Engines Discover the flat head bolt m8x20-10.9, an OEM replacement part that is perfectly tailored to your needs. Our comparison number 36900300003 ensures that this product can be reliably integrated into your application.Precise Fit for MAN D This OEM replacement part is suitable for MAN D engines and provides a solid solution to enhance the performance of your engines. The flat head bolt m8x20-10.9 is designed to support the efficiency of your machines and maintain their functionality.
- 36251500000 suitable for MAN D engines
Screw suitable for MAN D enginesDiscover the screw with comparison number 36251500000, specifically designed to be compatible with MAN D engines. This screw belongs to the category of OEM spare parts and offers outstanding fit for engine applications.Quality and DurabilityThe comparison number 36251500000 ensures that this OEM spare part meets the requirements of your MAN D engines. Rely on the reliable performance that is closely associated with experience-based components. This screw is crucial for the reliability of your engines.
- 33904900003 suitable for MAN D engines
Eye bolt suitable for MAN D engines The eye bolt with the comparison number 33904900003 is an essential OEM spare part specifically designed for MAN D engines. This reliable product offers the required stability and durability for your applications in marine and stationary technology.Quality through internal control Our strict internal controls ensure that every OEM spare part, including the eye bolt, meets high-quality standards. The comparison number 33904900003 stands for product quality that fulfills all requirements for engines.
SCREW - 31368044 suitable for Volvo/Volvo Penta engines
Robust Screw for Your EnginesDiscover the impact-resistant screw with comparison number 31368044. This product is suitable for Volvo/Volvo Penta engines and offers both quality and durability. Weighing 0.278 kg, this OEM replacement part is ideally suited to support the smooth operation of your machines and meet high operational standards.OEM Replacement Parts for Effective PerformanceThe screw 31368044 belongs to the article group screws and is specifically designed for engines used in marine as well as stationary applications. This replacement part significantly contributes to the efficiency of your engines, ensuring they remain powerful at all times. Make a conscious decision for OEM replacement parts to ensure the optimal functionality of your systems.
HEXAGON BOLT - 000961016051 suitable for MTU engines
Robust Hexagon Bolt for Your EnginesThe hexagon bolt with the comparison number 000961016051 is an essential OEM spare part specifically designed for MTU engines. Weighing only 0.091 kg, this bolt provides the stability and reliability you need for your engines. This product ensures that everything remains securely and firmly connected.
SCREW/BOLT - 305K02003 suitable for MTU engines
Quality Screw for Efficient EnginesDiscover the screw with the comparison number 305K02003, specifically designed for MTU engines. Our product belongs to the group of screws and offers reliable compatibility for your applications in marine and stationary use.OEM Replacement Parts for Optimal PerformanceThis OEM replacement part ensures the quality you can expect from a component. Rely on the durability and safety of our replacement parts, which are specifically designed to meet the requirements of 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.