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:
HEXAGON BOLT - 85300014078 suitable for MAN D engines
Reliable Hexagon Bolt for Your Engine Needs Discover the Hexagon bolt with comparison number 85300014078, an essential OEM spare part that provides the reliability you need for the maintenance of your engines suitable for MAN D engines. With these premium screws, you are well-equipped to ensure that your engines run smoothly.
HEX SHOULDER STUD - 85300014026 suitable for MAN D engines
Precise Hex Shoulder Stud for Your EnginesExperience the hex shoulder stud with the comparison number 85300014026, an essential OEM replacement part specifically designed for the demands of engines. This stud ensures a constant connection and contributes to the longevity of your components.Application Suitable for MAN D EnginesThe hex shoulder stud is suitable for MAN D engines and proves to be a reliable choice for diesel and gas engines. With this OEM replacement part, you secure the quality and performance you expect to operate your machines effectively.
CYLINDER SCREW - 85300013815 suitable for MAN D engines
Cylinder screw suitable for MAN D enginesDiscover our product, the cylinder screw with the comparison number 85300013815, suitable for applications in MAN D engines. This OEM replacement part offers excellent fitting accuracy for your engines.
HEXAGON BOLT - 85300013530 suitable for MAN D engines
Hexagon Bolt for MAN D Engines – Your SolutionDiscover the Hexagon bolt with the comparison number 85300013530, an essential component specifically suitable for MAN D engines. Weighing only 0.06 kg, this OEM spare part delivers reliable performance for your machinery. Thanks to its excellent manufacturing quality, it ensures that your engines remain efficient and operational at all times.Robust Performance in UseThis Hexagon bolt represents the highest quality you can expect from OEM spare parts. As a component suitable for MAN D engines, it permits your machinery to operate reliably even under demanding conditions. Trust in a component that meets the high standards of the industry and has been appreciated by many satisfied customers.
SCREW/BOLT - 85300013442 suitable for MAN D engines
Robust screw with comparison number 85300013442Discover the screw with the comparison number 85300013442, which impresses with its precise workmanship. This product belongs to the category of screws and is specifically designed for MAN D engines. Weighing only 0.02 kg, the screw is easy to handle and offers simple installation.OEM spare parts for your applicationsOur screw is an OEM spare part that supports the quality and reliability of your engines. The spare part compatible with MAN D engines ensures that your engine continues to function optimally. Rely on the top-notch craftsmanship that only OEM spare parts can provide.
STUD - 85300013309 suitable for MAN D engines
Reliable Stud for Compatible MAN D EnginesDiscover the stud with the comparison number 85300013309, which is precisely tailored to the requirements of compatible MAN D engines. This crucial replacement part comes from our category of screws and offers the highest precision and reliability. Weighing only 0.12 kg, the stud is both lightweight and robust, making it an indispensable component.
STUD - 85300013301 suitable for MAN D engines
Precise Stud for Your ApplicationsDiscover the stud with the comparison number 85300013301, which is characterized by its exact fit. This product is suitable for MAN D engines and ensures a reliable connection in your applications. Weighing only 0.13 kg, the stud offers a combination of lightness and robustness, ideal for use in marine and stationary areas.Advantages of OEM Replacement PartsThe stud belongs to the category of OEM replacement parts, which are specifically designed to meet the highest quality standards. By using OEM replacement parts, such as the comparison number 85300013301, you ensure excellent performance of your engines. Our products are therefore the first choice for companies that rely on efficiency and reliability.
HEX DRIVE SCREW - 85300013300 suitable for MAN D engines
Reliable Hex Drive Screw for MAN D EnginesDiscover the hex drive screw, known by the reference number 85300013300. This OEM replacement part weighs only 0.04 kg and is suitable for MAN D engines. It is specially designed for marine and stationary applications to optimize the performance of your drive.Efficient Technology from Family OwnershipAs a second-generation family business, we place great importance on your satisfaction. Our expertise in providing OEM replacement parts allows us to offer products that meet the highest quality standards. The replacement part suitable for MAN D engines undergoes extensive testing to ensure its efficiency and durability.
THREADED ROD - 85300013227 suitable for MAN D engines
Threaded rod suitable for MAN D enginesDiscover our threaded rod with the comparison number 85300013227, specifically designed to provide a perfect connection in your engines. This essential product belongs to the screws category and is a reliable component that is directly compatible with MAN D engines. Weighing only 0.04 kg, this threaded rod ensures stability and durability.OEM replacement parts for maximum performanceOur threaded rod meets the highest standards of OEM replacement parts. With the comparison number 85300013227, you receive an OEM replacement part that is optimally tailored to the requirements of MAN D engines. Rely on our precision and expertise in the field of engines.
STUD - 85300012609 suitable for MAN D engines
Robust Stud for Reliable ApplicationsDiscover the Stud with the comparison number 85300012609, an essential component for repairs. This product is suitable for MAN D engines and ensures a lasting connection.Highest Quality Through Internal ControlOur OEM replacement part is produced with the utmost care and undergoes stringent internal controls. The Stud is suitable for MAN D engines and meets the highest standards you expect from a replacement part.
HEX SHOULDER STUD - 85300012327 suitable for MAN D engines
Precise Replacement Part: Hex Shoulder StudThe hex shoulder stud with the comparison number 85300012327 is an essential OEM replacement part. This product weighs only 0.06 kg and is particularly suitable for engines that have the highest demands. Secure a reliable solution for your applications with the hex shoulder stud.Compatible with MAN D EnginesYou will find this product is compatible with MAN D engines, ensuring optimal functionality. This hex shoulder stud contributes significantly to enhancing stability and performance. Rely on our quality standards and benefit from the craftsmanship of this OEM replacement part.
DRAIN PLUG - 85300012306 suitable for MAN D engines
Optimal Drain Plug Suitable for MAN D EnginesDiscover the drain plug with the part number 85300012306, an essential OEM replacement part specifically designed for MAN D engines. Weighing 0.1 kg, this product not only offers optimal handling but also the durability you expect from a replacement part. This drain plug is part of the screws category and ensures a precise fit.Quality and Reliability in FocusOur drain plug, suitable for MAN D engines, provides the advantages of OEM replacement parts. Unlike aftermarket products, which are often less meticulously crafted, this OEM replacement part stands out due to proven standards and specific requirements. Trust in the quality of a product that is essential for your engine's performance and continuously supports the efficiency of your drive.
SCREW/BOLT - 85300012243 suitable for MAN D engines
Reliable screw/bolt suitable for MAN D enginesThe screw/bolt with the comparison number 85300012243 is an essential OEM spare part for your MAN D engines. This screw/bolt ensures optimal functionality and fits perfectly. Due to its quality and durability, it is ideal for all applications in the marine and stationary sectors.Quality through strict controlsOur OEM spare part stands out for its perfection and reliability. Quality is our top priority, and each screw/bolt undergoes the strictest internal controls. This measure ensures that we only offer you the best products that are optimally suitable for MAN D engines.
STUD - 85300011744 suitable for MAN D engines
Stud suitable for MAN D enginesDiscover our product, the stud with the comparison number 85300011744. This OEM spare part is specifically designed to ensure an excellent connection in engines and contribute to the performance and longevity of your applications.
SCREW PLUG - 85300011734 suitable for MAN D engines
Robust Screw Plug with Comparison Number 85300011734Discover the screw plug with the comparison number 85300011734, an essential OEM spare part for your needs. This specific screw is suitable for MAN D engines and ensures reliable functionality. Weighing 0.3 kg, the screw plug combines stability and precision, allowing you to rely on the performance of your machines.
SCREW/BOLT - 85300011490 suitable for MAN D engines
Product QualityDiscover our product, the screw/bolt with the comparison number 85300011490. This OEM spare part offers you the highest reliability and precision fit. It is specifically designed to be compatible with engines suited for MAN D.Precision for MAN D EnginesThe screw/bolt, compatible with MAN D engines, plays a crucial role in the flawless operation of your diesel and gas engines. This OEM spare part is robust and durable, helping you maximize the efficiency of your engines. Rely on the quality of our products, optimized for use in marine and stationary applications.
SCREW/BOLT - 85300011428 suitable for MAN D engines
Reliable Screw/Bolt with Comparison Number 85300011428Discover our screw/bolt with the comparison number 85300011428, specially designed to optimally support your suitable for MAN D engines. This OEM replacement part is part of the article group of screws and impresses with its precise fit, which is essential for efficient performance. Weighing just 0.02 kg, this screw/bolt is not only lightweight but also extremely robust.Excellent Quality of OEM Replacement PartsThanks to our strict quality controls at MOPA Motorparts, every OEM replacement part meets the highest standards. This screw/bolt is suitable for MAN D engines and has been designed to withstand the harsh conditions of marine and stationary applications. Trust in the quality and durability of our products.
SCREW/BOLT - 85300011421 suitable for MAN D engines
Precise Screw with Comparison Number 85300011421Discover our outstanding product, the screw with comparison number 85300011421. This OEM replacement part is specially designed to ensure optimal performance in engines. It is compatible with MAN D engines, providing you with the highest reliability.
SCREW/BOLT - 85300011284 suitable for MAN D engines
Reliable Screw for Long-lasting ApplicationsDiscover the product with the comparison number 85300011284, a screw/bolt that perfectly fits your MAN D engines. These OEM spare parts offer the quality and durability you need for the reliable operation of your diesel and gas engines. Weighing only 0.01 kg, this screw/bolt is ideal for demanding applications.Perfect Fit and DurabilityOur screw/bolt is suitable for all MAN D engines, ensuring you can rely on maximum efficiency. Using OEM spare parts ensures the best quality and a perfect fit, specifically designed for the requirements of your engines. Trust in the careful manufacturing and high standards of this screw/bolt.
CYLINDER SCREW - 85300011266 suitable for MAN D engines
Unique Cylinder Screw for Professional ApplicationsDiscover our cylinder screw, designed to fit MAN D engines. With the comparison number 85300011266, you receive a high-quality OEM replacement part that meets the industry's high standards. This cylinder screw ensures optimal performance and is designed to provide lasting stability in demanding applications.Precise and Reliable ComponentsOur cylinder screw weighs only 0.01 kg and is specifically designed for use in marine and stationary engine technologies, as well as locomotives. The product is suitable for MAN D engines and impresses with its exact fit. This precision reduces maintenance efforts and maximizes the lifespan of your engines.
VENT PLUG - 85300010368 suitable for MAN D engines
Vent plug suitable for MAN D enginesDiscover the vent plug with the comparison number 85300010368, an essential OEM replacement part for your engines. This screw has been specifically designed to optimize the performance and reliability of engines in marine and stationary applications. Weighing only 0.05 kg, this product is lightweight yet robust, making it ideal for demanding environments.Exclusive OEM replacement parts for your needsOur vent plug is suitable for MAN D engines and belongs to the category of screws. These OEM replacement parts offer the highest precision and optimal fit, allowing you to rely on the durability and functionality of the product. Each replacement part undergoes strict internal controls to ensure that only the best components are used in your engine.
SCREW PLUG - 85300010227 suitable for MAN D engines
Your Reliable Solution: Screw PlugThe screw plug with the reference number 85300010227 is the ideal OEM replacement part for your needs. This product, weighing 0.13 kg, has been specifically designed and is compatible with MAN D engines. In marine and stationary applications, the screw plug optimizes performance and ensures trouble-free functionality of your engines.Tailored OEM Replacement PartsOur screw plug belongs to the group of screws and is offered as an OEM replacement part. The reference number 85300010227 stands for the highest quality and compatibility, allowing you to rely on your engine's performance. OEM replacement parts ensure that all components fit exactly to the specifications of the manufacturer – compatible with MAN D.
HEX DRIVE SCREW - 85300010111 suitable for MAN D engines
OEM Replacement Part for MAN DDiscover the Hex drive screw with the part number 85300010111, an essential OEM replacement part perfectly tailored to the demands of MAN D engines. Weighing only 0.04 kg, this thoughtfully designed component ensures stability and reliability in your engines.
FITTING BOLT - 85300010030 suitable for MAN D engines
Fitting bolt suitable for MAN D – Your choiceDiscover the fitting bolt with the comparison number 85300010030 – an indispensable OEM replacement part designed specifically for use in MAN D engines. This bolt belongs to the category of screws and weighs just 0.01 kg. It offers the perfect combination of lightness and robustness, making it ideal for various applications in the marine and stationary sectors.Advantages of OEM Replacement PartsThe fitting bolt with the comparison number 85300010030 is a product that is specifically suitable for use in engines compatible with MAN D engines. Unlike aftermarket products, which often do not provide the same precision, our OEM replacement part ensures an exact fit and consistent performance.
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.