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 - 651003510014 suitable for MWM & Deutz engines
Stress bolt – Essential spare part with reference number 651003510014The stress bolt with reference number 651003510014 is a crucial OEM spare part designed for the highest demands in engines. Weighing only 0.74 kg, these components provide the perfect mix of stability and efficiency. The application is versatile: our stress bolt is suitable for MWM & Deutz engines, ensuring lasting reliability in your machines.Reliable OEM spare parts for MWM & Deutz enginesOur stress bolt, marketed under reference number 651003510014, represents our experience and commitment to providing OEM spare parts. Due to the precision of this spare part, it is ideally suited for the demands of marine and stationary applications. Rely on the durability of our products, specifically developed and tailored to achieve the best results with MWM & Deutz engines.
HEXAGON BOLT - 651003509014 suitable for MWM & Deutz engines
Hexagon bolt suitable for MWM & Deutz enginesDiscover the hexagon bolt with the comparison number 651003509014, the essential product for your engines. This bolt is specifically designed for MWM & Deutz engines to ensure a reliable and secure connection of all components. Weighing only 0.025 kg, the product can be easily integrated into existing systems.Quality through OEM spare partsThe comparison number 651003509014 stands for the highest precision. As an experienced provider of OEM spare parts, we offer you this hexagon bolt that meets the requirements of your engines. Through careful selection and quality assurance, you receive an OEM spare part that provides long-lasting durability.Perfect fit for your enginesThe hexagon bolt is ideal, suitable for a wide range of applications in marine and stationary diesel and gas engines. Its functionality makes it an indispensable component that you need as a reliable partner for your maintenance work on MWM & Deutz engines. You can confidently rely on its unmatched design and quality.
HEXAGON BOLT - 651003500114 suitable for MWM & Deutz engines
HEXAGON BOLT with the comparison number 651003500114 suitable for MWM & Deutz engines
HEXAGON BOLT - 651003500104 suitable for MWM & Deutz engines
Hexagon Bolt for Reliable ApplicationsDiscover the hexagon bolt with the comparison number 651003500104, which plays an essential role in various applications. This product impresses with precision and is specifically manufactured as an OEM replacement part. You have a suitable solution that supports the reliability and longevity of your engines.Perfectly Suitable for MWM & Deutz EnginesThe hexagon bolt is precisely manufactured, making it perfectly suitable for MWM & Deutz engines. Weighing just 0.02 kg, it meets the ideal standard for any construction. This manufacturing has proven to be extremely stable, thus maximizing the efficiency of your engines.
HEXAGON BOLT - 651003500084 suitable for MWM & Deutz engines
Timeless Performance with Reference Number 651003500084Discover our product, the Hexagon bolt with reference number 651003500084. This innovative OEM spare part offers you the quality and reliability you expect from a specialized provider. The Hexagon bolt is suitable for MWM & Deutz engines and plays a crucial role in the smooth operation of your machines. Rely on the solid construction of this essential component, manufactured to the highest standards.Perfect Fit for Your EnginesWith its hexagonal shape and a weight of only 0.05 kg, our product ensures optimal integration into your systems. This OEM spare part is designed to be a perfect fit for MWM & Deutz engines. If you are looking for quality, choose the Hexagon bolt, specifically designed for various applications in your field.
CYLINDER HEAD BOLT - 651003500074 suitable for MWM & Deutz engines
Robust Product with Comparison Number 651003500074Discover our cylinder head bolt, which is marked with the comparison number 651003500074. This OEM spare part impresses with its reliable design and is engineered to ensure optimal performance in various machines.Precision for MWM & Deutz EnginesThe cylinder head bolt is suitable for MWM & Deutz engines. By utilizing robust materials, longevity is ensured, minimizing downtime. This product is crucial for the smooth operation and efficiency of your machines.
HEXAGON BOLT - 651003500054 suitable for MWM & Deutz engines
Reliable Hexagon Bolt for EnginesDiscover our top-quality product, the Hexagon bolt with the comparison number 651003500054. This bolt is an essential spare part and is perfect for applications in your operation. It ensures a secure attachment that will impress you in terms of reliability and efficiency.
HEXAGON BOLT - 651003500044 suitable for MWM & Deutz engines
Precise Quality of Hexagon Bolt 651003500044Discover the hexagon bolt with the reference number 651003500044 – an essential product compatible with MWM & Deutz engines. This hexagon bolt is part of our line of OEM replacement parts and weighs only 0.025 kg. In industries where reliability and precision are crucial, this component provides the necessary integrity for your engines.Optimal for Various ApplicationsThe hexagon bolt is particularly suitable for marine and stationary use to ensure the long lifespan of engines. OEM replacement parts like this product offer the highest accuracy for your engines and are indispensable for ensuring smooth operation. Trust in this bolt, compatible with MWM & Deutz.
THREADED ROD - 651003209156 suitable for MWM & Deutz engines
Robust Threaded Rod for Your ApplicationsDiscover the benefits of the threaded rod with comparison number 651003209156, which is compatible with MWM & Deutz engines. This reliable OEM replacement part ensures that your engines remain fully operational for marine and stationary applications, as well as in locomotives. Weighing 0.82 kg, this threaded rod offers excellent stability in challenging environments.
THREADED ROD - 651003209126 suitable for MWM & Deutz engines
Stable Foundation for Every EngineDiscover our innovative product, the threaded rod with the comparison number 651003209126. This industry-specific OEM replacement part is the ideal solution for your performance and efficiency requirements. Designed for use in marine and stationary applications, this threaded rod provides optimal stability and durability. Suitable for MWM & Deutz engines, it is the perfect choice for technical professionals.
THREADED ROD - 651003200066 suitable for MWM & Deutz engines
Discover Threaded Rod with Comparison Number 651003200066 Discover our premium product: the threaded rod with the comparison number 651003200066. This OEM replacement part is precisely designed to provide reliable fit and optimize the performance of your systems. As part of your engine technology, the threaded rod is an essential component for your demanding applications in marine and stationary areas.Perfectly Suited for MWM & Deutz Engines Our threaded rod is compatible with MWM & Deutz engines and stands for the quality you expect. Unlike aftermarket products, this replacement part offers the assurance that it is made from high-performance materials. This ensures the functionality of your engines without compromising.
THREADED ROD - 651003200034 suitable for MWM & Deutz engines
Quality of the Threaded Rod: Comparison Number 651003200034Our threaded rod with the comparison number 651003200034 meets high standards and offers precision and reliability. This OEM spare part is essential for engine maintenance and is the ideal choice for professionals in the marine and industrial sectors.
CONTROL ROD - 650106544035 suitable for MWM & Deutz engines
Precise Control Rod for Diesel and Gas EnginesDiscover the precise control rod categorized in our article group screws. With the comparison number 650106544035, this product is essential for the optimal functioning of your engines.Suitable for MWM & Deutz EnginesThe control rod is suitable for MWM & Deutz engines and is designed to support maintenance and upkeep. As a replacement part, it ensures the best quality and performance to maximize the efficiency of your engines.
CONTROL ROD - 650106540035 suitable for MWM & Deutz engines
Optimal Solution for High-Performance EnginesDiscover our Control rod as a crucial spare part specifically designed to be compatible with MWM & Deutz engines. With the reference number 650106540035, this product offers excellent performance and precise fit. Weighing just 0.099 kg, the component is ideal for various applications in high-performance engines.Reliability and Precision in ApplicationThe Control rod as a spare part is designed to provide exceptional precision and operate efficiently in MWM & Deutz engines. Our reference number 650106540035 facilitates identification and ensures that you choose the right product for your specific needs. With this component, your engine runs reliably and exhibits outstanding performance.
CONTROL ROD - 650106540025 suitable for MWM & Deutz engines
Robust Control Rod with High FunctionalityThe control rod with the comparison number 650106540025 is an essential OEM spare part specifically designed for engines compatible with MWM & Deutz. This control rod offers high accuracy and is ideal for applications in marine and stationary sectors. Weighing 11 kg, it represents a solid construction that meets the demands of high-performance engines.
ADJUSTING SCREW - 650103580046 suitable for MWM & Deutz engines
Adjusting screw suitable for MWM & Deutz – Part number 650103580046Discover the adjusting screw with the comparison number 650103580046, the optimal OEM spare part for your engine application! This screw is a thoughtfully designed product that ensures excellent performance. At MOPA Motorparts, we promote sustainability through reliable spare parts and ensure that our products meet the specific requirements of your engines. Ideal for industrial and maritime applications!Suitable for MWM & Deutz enginesOur adjusting screw 650103580046 is suitable for MWM & Deutz engines, particularly the series 501 and 645. It is compatible with the engine types TBD501-6E, TBD645, and TBD645-L6. With a compact design of 8.2 cm in length and 2.6 cm in height, as well as a weight of only 0.145 kg, this OEM spare part is a targeted choice for all consumers who value performance and reliability.
ADJUSTING SCREW - 650103580044 suitable for MWM & Deutz engines
Quality Product for Engine ApplicationsDiscover our product with the comparison number 650103580044, a premium adjusting screw that is essential for the reliable function of engines. This adjusting screw ensures stability and a high level of safety for your applications.Suitable for MWM & Deutz EnginesThis premium OEM replacement part is designed to fit MWM & Deutz engines and meets the highest standards. Our components are characterized by durability and precise performance, so you can be confident that your engines operate efficiently.
ADJUSTING SCREW - 650103580034 suitable for MWM & Deutz engines
Premium Adjusting Screw for Excellent Engine PerformanceDiscover the adjusting screw (comparison number: 650103580034) as your reliable OEM replacement part. This product is essential for precise drive adjustment and ensures optimal performance. Weighing only 0.095 kg, this adjusting screw impresses with its quality and durability.Suitable for MWM & Deutz EnginesOur adjusting screw is specifically designed to be compatible with MWM & Deutz engines. This ensures smooth operation of your machinery and contributes to the efficient running of your engines. Each screw is manufactured to the highest standards, so you can be sure you are receiving a suitable OEM replacement part.
ADJUSTING SCREW - 650103580014 suitable for MWM & Deutz engines
Precise Adjusting Screw – Comparison Number 650103580014Discover the adjusting screw with the comparison number 650103580014. This OEM spare part is essential for optimizing the performance of your engines. Designed to meet the highest standards, the adjusting screw weighs 0.115 kg and is specifically tailored to the needs of marine and stationary applications.Suitable for MWM & Deutz – Quality OEM Spare PartThe adjusting screw is compatible with MWM & Deutz engines, ensuring smooth integration into your existing applications. Through precise manufacturing techniques, this product allows for a perfect fit and functionality, designed for the high-performance MWM & Deutz engines. Take advantage of high-quality technologies.
BIG END BOLT - 650103530014 suitable for MWM & Deutz engines
Reliable Big End Bolt: OEM Replacement Part for EnginesDiscover our premium Big End Bolt, specifically designed to be compatible with MWM & Deutz engines of the series 501. The comparison number 650103530014 indicates that you are purchasing an official OEM replacement part that meets the demanding requirements of marine and stationary applications. Rely on this component when it comes to the maintenance of your engines – because quality is our main concern.
SCREW PLUG - 650103520014 suitable for MWM & Deutz engines
Versatile Screw Plug for Your RequirementsDiscover the screw plug (comparison number: 650103520014), an exceptional product designed specifically for MWM & Deutz engines. This screw fulfills all requirements and offers the optimal solution for marine and stationary applications. Weighing only 0.071 kg, it is efficient in handling and installation.OEM Replacement Parts in Top QualityOur screw plug is an OEM replacement part that has proven to be a reliable component suitable for MWM & Deutz. Each replacement part within our category comes from a quality-controlled manufacturing process, meeting the highest standards in mechanical engineering.
STUD - 650103510234 suitable for MWM & Deutz engines
Stud for Reliable PerformanceThe stud with the comparison number 650103510234 offers you an optimal solution for maintaining your engines. This OEM replacement part is characterized by precise fit and high manufacturing quality. Rely on components specifically designed to meet the demands of the industry.Suitable for MWM & Deutz EnginesThis stud is the ideal product if you are looking for a reliable component compatible with MWM & Deutz engines. It integrates seamlessly into the engine infrastructure, ensuring that the performance of your machines is not compromised.
STUD - 650103510224 suitable for MWM & Deutz engines
Stud suitable for MWM & Deutz – Your ideal productDiscover the reliable stud, comparison number 650103510224, which is perfectly suitable for use in numerous MWM & Deutz engines. This precisely manufactured spare part belongs to our article group and ensures that your engines remain effectively maintainable.Robust solution for diesel and gas enginesThe stud weighs only 0.052 kg, providing optimal weight distribution within the engines. It is suitable for MWM & Deutz engines and impresses with functionality in various demanding environments. Trust in our spare parts, known for their durability.
STUD - 650103510204 suitable for MWM & Deutz engines
Robust Stud: Comparison Number 650103510204Discover the stud with the comparison number 650103510204, an important OEM spare part specifically suitable for MWM & Deutz engines. This reliable screw belongs to the category of screws and impresses with a stable construction. It ensures a stable operation in your machines with excellent fit.Quality: Suitable for All RequirementsThe strength of this stud lies in the fact that it is an OEM spare part that meets the highest standards. Suitable for the performance required by model series 501, this product ensures an optimal connection within the MWM & Deutz engines. With a weight of 2.5 kg, this screw is designed to support operation over a long period.
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.