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:
FITTING BOLT - 85300017240 suitable for MAN D engines
Robust Fitting Bolt for the Best ResultsDiscover the fitting bolt with the comparison number 85300017240 – an indispensable product for the safety and efficiency of your engines. This fitting bolt is specially designed to provide optimal grip and stability. Weighing only 0.08 kg, it is ideally suited for numerous applications in marine and stationary use.Tailored Quality for MAN D EnginesOur fitting bolt is compatible with MAN D engines and ensures that your engine runs smoothly. Compared to conventional aftermarket products, our OEM replacement part offers the reliability you expect from an equipment manufacturer. With the comparison number 85300017240, you receive a product that combines excellent functionality and durability.
FITTING BOLT - 85300017239 suitable for MAN D engines
Fitting Bolt with Comparison Number 85300017239Discover our fitting bolt with the comparison number 85300017239, specifically designed for use in MAN D engines. This OEM replacement part ensures a precise fit and meets the requirements in marine and stationary applications. Weighing 0.02 kg, the bolt impresses with its lightness and robustness.Products in Original Equipment Manufacturer QualityOur fitting bolt is a reliable product from the group of screws. As an OEM replacement part, it stands for the highest quality and durability, allowing you to maintain your engines efficiently. Benefit from original equipment manufacturer quality at attractive prices and rely on top-notch components.
STUD - 85300017225 suitable for MAN D engines
Stud with Comparison Number 85300017225Discover our product, the stud with comparison number 85300017225. This OEM spare part has been precisely developed for MAN D engines and is an essential component in the maintenance and repair of engines. Weighing only 0.1 kg, this stud offers an ideal combination of performance and efficiency, perfect for use in diesel and gas engines.Optimal Fit and DurabilityThe stud is precisely manufactured to meet the specific requirements of the manufacturers. OEM spare parts like this stud contribute to improved engine performance and reliability. This design ensures that the stud can be seamlessly integrated into your MAN D engines, promising a long lifespan.
HEX SHOULDER STUD - 85300017224 suitable for MAN D engines
Details about the Hex Shoulder StudDiscover the hex shoulder stud with the comparison number 85300017224. This product is an essential component that delivers quality and is specifically designed for use in engines. Weighing only 0.2 kg, this screw is lightweight yet robust enough to ensure long-term performance.
HEXAGON BOLT - 85300017223 suitable for MAN D engines
Premium Hexagon Bolt: Quality You Can Rely OnDiscover the Hexagon bolt with the comparison number 85300017223, an essential OE spare part for your requirements. This Hexagon bolt belongs to the group of screws and offers a reliable solution for engines due to its precise workmanship. Weighing only 0.1 kg, it ideally combines lightness and robustness.Superior Performance for MAN D EnginesOur comparison number 85300017223 is suitable for MAN D engines and ensures consistent functionality and reliability. Trust in our more than 25 years of experience and the use of OE spare parts, which have proven to be the best choice for your applications in the marine and locomotive industry.
DRAIN PLUG - 85300017222 suitable for MAN D engines
Drain Plug with Comparison Number 85300017222Discover the drain plug with the comparison number 85300017222, specially designed for use in engines. This product from the screws category is crucial for the secure sealing of your engines. Weighing only 0.04 kg, the drain plug provides the effortless handling and performance you need.
VENT PLUG - 85300017219 suitable for MAN D engines
Vent plug suitable for MAN D enginesDiscover the vent plug with the comparative number 85300017219, specially designed for the requirements of MAN D engines. This OEM spare part is made from durable materials and offers flawless functionality, essential for the efficiency of your engine. Weighing only 0.02 kg, the product is both lightweight and straightforward to install.Quality and reliability for MAN DThe vent plug is an important spare part suitable for various applications in marine and stationary engineering as well as for locomotives. With precise manufacturing, you receive an OEM spare part that optimizes the performance of your machine and extends the lifespan of your engines.
SCREW/BOLT - 85300017208 suitable for MAN D engines
Screw suitable for MAN D enginesDiscover the screw with the comparison number 85300017208, which supports your application as an essential OEM spare part. This screw is not just a simple component, but an indispensable part for engines that require high performance. Weighing 0.2 kg, it offers optimal stability and durability.Suitable for MAN D: Perfect IntegrationThis screw is suitable for MAN D engines and ensures a seamless integration. The use of OEM spare parts is crucial to enhance the functionality and reliability of your engines. Rely on quality with this product, which can be used in many applications in the marine and stationary sectors.
SCREW/BOLT - 85300017201 suitable for MAN D engines
Precise Screw for Smooth OperationDiscover the screw, comparison number 85300017201, specifically developed for the high demands of engines. This OEM replacement part offers an exact fit that is crucial for the reliability of your machines. Weighing only 0.01 kg, it is not only lightweight but also extremely robust – ideal for use in demanding environments.OEM Replacement Parts for Maximum EfficiencyOur screw is a prime example of OEM replacement parts that are suitable for MAN D engines. By using this screw, you ensure the performance and efficiency of your engines. Each product meets the high standards of the manufacturer and provides a long service life.
HEXAGON BOLT - 85300017197 suitable for MAN D engines
Precise Hexagon Bolt for Reliable Engine PerformanceDiscover the hexagon bolt with the comparison number 85300017197, an essential OEM replacement part suitable for MAN D engines. This product has been specifically designed to support the performance of your engines in marine and stationary applications. The precise manufacturing ensures exact fit and stability to optimize the efficiency of your machines.Technical Details: Comparison Number and WeightWith a weight of 0.46 kg, this OEM replacement part is robust and durable. The comparison number 85300017197 facilitates the identification and selection of the right part for your motorized applications. Trust in the quality of our products, designed specifically for the demands of engines in intensive use.
SCREW/BOLT - 85300017189 suitable for MAN D engines
Precise OEM Replacement Part: Screw Suitable for MAN D EnginesDiscover our screw, a precise OEM replacement part suitable for MAN D engines. With the comparison number 85300017189, this product is ideal for maintenance and repair work on engines. Weighing only 0.12 kg, the screw offers excellent functionality that meets the high demands in marine and stationary applications.Quality for Reliable ApplicationsOur screw is an essential component, suitable for MAN D engines. As part of the product group "Screws," this OEM replacement part meets the highest industrial standards and ensures reliable performance for your engines. The precision in manufacturing ensures that you can rely on the durability and efficiency of your engine.
SCREW/BOLT - 85300017179 suitable for MAN D engines
Reliable Screw with Comparison Number 85300017179Experience the reliable screw with comparison number 85300017179, a crucial product for engines, suitable for MAN D. This OEM spare part is characterized by precise workmanship and durability, making it ideal for applications in marine and stationary use as well as in locomotives. Weighing only 0.03 kg, the screw is lightweight yet extremely stable to meet the demands of your engines.OEM Spare Parts in Original Equipment Manufacturer QualityOur spare parts are OEM spare parts specifically designed for MAN D engines. By using these components, we ensure that you achieve the highest standards in the performance of your machines. Benefit from the attractive prices that help you optimize your maintenance costs without compromising on quality.
HOLLOW SCREW - 85300017025 suitable for MAN D engines
Hollow Screw: Your Solution for Industrial EnginesDiscover our Hollow Screw (comparison number: 85300017025), an essential OEM replacement part specifically designed to meet the demands of engines. Weighing just 0.04 kg, this product provides the stability you need to maintain the efficient operation of your engines. The Hollow Screw has been precisely engineered to support the performance and longevity of your drive units.Optimal Fit for MAN D EnginesThis Hollow Screw is ideally suited and compatible with MAN D engines. Our products, particularly the Hollow Screw with comparison number 85300017025, ensure optimal connection and contribute to the smooth operation of your machines. Choosing our OEM replacement part ensures that you can rely on the highest standards.
SCREW/BOLT - 85300016882 suitable for MAN D engines
Premium Screw for Your NeedsThe screw with the comparison number 85300016882 is a reliable OEM spare part specifically designed for engines. This product impresses with its quality and is suitable for MAN D engines, making it ideal for the maintenance and repair of your equipment. Weighing only 0.07 kg, this screw is a lightweight yet robust component that meets the highest standards.Trust in the Comparison Number 85300016882As a family-owned business in its second generation, we place great value on outstanding products. The comparison number 85300016882 represents our commitment to providing only the best OEM spare parts. With this screw, you invest in the longevity of your engines and maximize operational safety.
SCREW/BOLT - 85300016855 suitable for MAN D engines
Reliable Screw with Comparison Number 85300016855Discover the screw with comparison number 85300016855, which is suitable as a top-quality OEM replacement part to support the functionality of your engines. This screw weighs only 0.15 kg and has proven itself in industrial applications. Count on quality to optimize the performance of your machines.
CYLINDER SCREW - 85300016732 suitable for MAN D engines
Efficient Cylinder Screw for EnginesDiscover our cylinder screw, identified by the comparison number 85300016732. This OEM replacement part is specifically designed to optimize the performance of MAN D engines. The quality and fit of this screw are crucial to ensuring the efficiency of your engines.Perfect Fit for MAN D EnginesThis cylinder screw is suitable for MAN D and ensures a robust connection. Our product meets the highest industry standards, allowing you to rely on a sustainable solution for your engines.
SCREW/BOLT - 85300016509 suitable for MAN D engines
Discover OEM Replacement Parts for MAN D EnginesDiscover the screw/bolt with the comparison number 85300016509, which is ideal for your engine needs. This product from the category screws is an essential component specifically designed to meet the performance requirements of MAN D engines. Weighing only 0.1 kg, the screw/bolt provides a reliable solution for your engines.Comprehensive Range of Replacement PartsAt MOPA Motorparts, you can access an extensive selection of over 1 million replacement parts. Our focus is on OEM replacement parts that meet the highest quality standards. This screw/bolt, as well as other replacement parts, are perfectly suited for use in diesel and gas engines. We understand how important precision and reliability are for the needs of our B2B customers.
SCREW/BOLT - 85300016504 suitable for MAN D engines
Screw suitable for MAN D enginesDiscover our screw with the comparison number 85300016504, which is suitable for MAN D engines. This screw belongs to the group of screws and has been developed to meet the high demands in marine and stationary applications. Weighing only 0.08 kg, it is an essential component for the efficient operation of your engines.Quality of OEM replacement partsOur screw is an OEM replacement part, which means it offers proven quality and is perfectly suitable for MAN D engines. With its high standards of workmanship and durability, it ensures reliable performance. Trust in products that are specifically designed for your machines.
SCREW/BOLT - 85300016489 suitable for MAN D engines
Efficient Screw for Your EnginesDiscover our screw with the comparison number 85300016489, a custom-made OEM replacement part specifically developed for the needs of engines. This screw weighs only 0.01 kg and offers an excellent fit for numerous applications in the marine and stationary sectors.Suitable for MAN D Engines – Durability in UseThis screw is suitable for MAN D engines and meets high-quality standards. Thanks to precise manufacturing, the product ensures that your engines operate efficiently and reliably, ultimately leading to a longer lifespan.
SET SCREW - 85300016337 suitable for MAN D engines
Quality Product for Precise ApplicationsDiscover our set screw, suitable for MAN D engines, with the comparison number 85300016337. This product is offered as an OEM replacement part and ensures optimal fit and functionality. Weighing only 0.02 kg, this replacement part is particularly suitable for use in marine and stationary engines.
HEX SHOULDER STUD - 85300015933 suitable for MAN D engines
Essential Product: Hex Shoulder Stud The hex shoulder stud (comparison number 85300015933) is an essential spare part specifically designed to meet your needs. Weighing just 0.07 kg, this product combines performance and practical application. Benefit from quality that meets the highest standards.
HEXAGON BOLT - 85300015774 suitable for MAN D engines
Precise Hexagon Bolt for Your Needs Discover the hexagon bolt with the comparison number 85300015774, a product that meets the highest standards. This component is suitable for MAN D engines and belongs to the category of screws. The durability of this hexagon bolt makes it an indispensable OEM replacement part for your applications.
CYLINDER SCREW - 85300015607 suitable for MAN D engines
Cylinder screw compatible with MAN D enginesDiscover the cylinder screw with the comparison number 85300015607, which provides an ideal solution for your engine needs. This product is compatible with MAN D engines and belongs to the category of screws. It ensures that your engines operate efficiently and reliably, so you can count on optimal performance.Quality of OEM spare partsThe cylinder screw weighs only 0.02 kg and is a lightweight component that can be easily integrated into your machine. Our OEM spare parts are manufactured according to strict standards. Rely on this cylinder screw, designed for MAN D engines, to support the longevity of your equipment.
HEX SHOULDER STUD - 85300015555 suitable for MAN D engines
Robust Hex Shoulder Stud for Your ApplicationsDiscover the Hex shoulder stud with the reference number 85300015555 – a top-notch product specifically designed for the demands of challenging environments. It weighs 0.5 kg and offers the robustness and precision you need in your applications. Our screw is an OEM replacement part that meets strict quality standards.
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.