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:
HEX SHOULDER STUD - A5000134748 suitable for MAN D engines
Precise Hex Shoulder StudDiscover our product, the hex shoulder stud with the comparison number A5000134748. This precisely manufactured component is suitable for engines in marine and stationary applications. Weighing only 0.03 kg, it is the optimal choice for efficient operation. The use of this screw enhances the longevity and functionality of your engine.OEM Spare Parts for Highest StandardsThe hex shoulder stud with the comparison number A5000134748 belongs to the OEM spare parts that meet the high standards of the manufacturers. When selecting a spare part suitable for MAN D engines, you choose quality that has proven itself. Rely on our experience to support the smooth operation of your engines.
STUD - A5000041607 suitable for MAN D engines
Reliable Stud A5000041607Discover our Stud, which is listed under the comparison number A5000041607. This product is ideal for applications requiring excellent fit and precision. The Stud is an essential OEM spare part specifically designed for use in engines, making it an indispensable element for your maintenance projects.Suitable for MAN D Engines – Your Quality ChoiceThis product is suitable for MAN D engines and ensures that you receive the necessary performance and stability. Weighing only 0.13 kg, the Stud is lightweight yet robust enough to meet the demands of various operational environments. Trust in the quality of our OEM spare parts to provide your engines with the reliability they need.
SCREW PLUG - A0705521500 suitable for MAN D engines
Precise Screw Plug A0705521500 Suitable for EnginesDiscover the screw plug with the comparison number A0705521500, specifically designed to provide an optimal solution for your engines. This OEM replacement part offers precise fit, which is crucial for the performance and reliability of your machines.
COLLAR BOLT HEX COLLAR BOLT - 99900200371 suitable for MAN D engines
Collar screw suitable for MAN D enginesThe collar screw with the comparison number 99900200371 is a top-quality OEM replacement part specifically designed for use in engines compatible with MAN D. Weighing only 0.119 kg, this product combines robustness and efficiency to optimally meet the needs of your engines.
HEXAGON SCREW - 997972 suitable for Volvo/Volvo Penta engines
Unique Hexagon Bolt with Comparison Number 997972The Hexagon bolt with the comparison number 997972 is an essential OEM spare part that has been meticulously designed for the structure and function of engines. Its compact weight of only 0.083 kg makes it an ideal choice for any engine maintenance. This Hexagon bolt is suitable for Volvo/Volvo Penta engines, which means you can rely on perfect fit and high performance.OEM Spare Parts for Maximum EfficiencyThis comparison number 997972 represents an OEM spare part that stands out from aftermarket components due to its quality. At MOPA Motorparts, we prioritize the use of the original manufacturer, ensuring that the product meets high standards. Because it is suitable for Volvo/Volvo Penta engines, you invest in the longevity of the engine and benefit from smooth performance under all conditions.
HEXAGON SCREW - 997937 suitable for Volvo/Volvo Penta engines
Precise Hexagon Bolt for Your ApplicationsDiscover our hexagon bolt with the comparison number 997937, which is suitable for Volvo/Volvo Penta engines. This OEM spare part stands for the highest quality standards and ensures an optimal fit. Weighing only 0.058 kg, the hexagon bolt is lightweight yet strong enough for marine and stationary use.Excellent OEM Spare Parts for EnginesThe hexagon bolt with comparison number 997937 belongs to the OEM spare parts that offer excellent performance and longevity. Our parts are suitable for Volvo/Volvo Penta engines and come from recognized manufacturers, so you can rely on their functionality. Compared to aftermarket products, we provide the reliability that your engines need.
HEX FLANGE BOLT - 997645 suitable for Volvo/Volvo Penta engines
Robust Hex Flange Bolt for EnginesThe hex flange bolt with the comparison number 997645 is a proven OEM spare part specifically designed for demanding applications. Weighing just 0.031 kg and featuring a thoughtful design, this screw offers customized solutions for high-quality connections. It is suitable for engines from Volvo/Volvo Penta and is perfect for numerous applications in marine and stationary technology.
HEXAGON SCREW - 997414 suitable for Volvo/Volvo Penta engines
Hexagon bolt suitable for Volvo/Volvo PentaDiscover our OEM replacement part, the hexagon bolt with the comparison number 997414, which has been specifically designed to perfectly fit your Volvo/Volvo Penta engines. This product ensures a premium fit that is essential for the longevity and reliability of your engines.Quality and internal controlEvery hexagon bolt undergoes strict internal controls to ensure that it meets the highest standards. As an OEM replacement part, you can rely on the quality and performance of our product when it comes to your engines.
HEX FLANGE BOLT - 996570 suitable for Volvo/Volvo Penta engines
Hex Flange Bolt with Comparison Number 996570Discover the hex flange bolt with the comparison number 996570, which is functional and reliable. This OEM spare part offers you the quality you need to ensure the performance of your engines. Weighing only 0.083 kg, this product is suitable for numerous applications.Reliable OEM Spare Parts for Your NeedsOur hex flange bolt provides an optimal fit and meets high standards for replacement parts in original equipment manufacturer quality. Developed for Volvo/Volvo Penta engines, this component offers both safety and durability, which are crucial for your marine and stationary installations. Invest in this OEM spare part to avoid expensive downtime.
HEX FLANGE BOLT - 996255 suitable for Volvo/Volvo Penta engines
Robust Hex Flange Bolt for Your EnginesDiscover our Hex flange bolt (reference number: 996255), an essential OEM replacement part specifically designed to ensure that your engines run smoothly. This product with the reference number 996255 belongs to the item group "Screws" and offers perfect fit for your applications.Suitable for Volvo/Volvo Penta EnginesThe Hex flange bolt is suitable for Volvo/Volvo Penta engines and impresses with its durability and reliable performance. Weighing only 0.043 kg, it allows for easy installation and provides the necessary stability you expect from OEM replacement parts.
SOCKET-HEAD SCREW - 996109 suitable for Volvo/Volvo Penta engines
Socket-head screw: Reliable solution for enginesThe socket-head screw with the comparison number 996109 is an essential OEM spare part that ensures the reliable operation of your engines. This component is suitable for Volvo/Volvo Penta engines and is characterized by its excellent fit and durability. Weighing only 0.018 kg, this product can be easily installed.Optimal solutions for marine enginesAs part of our extensive selection of over 1 million spare parts, we offer you the socket-head screw 996109, which is specifically designed for use in various applications. This screw is an OEM spare part that meets the highest quality standards, so you can rely on the functionality of your engines. Ideal for marine and stationary use!
HEX FLANGE BOLT - 996083 suitable for Volvo/Volvo Penta engines
Hex flange bolt suitable for Volvo/Volvo Penta enginesDiscover our hex flange bolt, comparison number 996083, specifically designed to ensure the highest precision for your engines. This product weighs only 0.043 kg and proves to be an essential component that provides a stable connection for engine applications. Every detail is carefully considered to meet the requirements of Volvo/Volvo Penta engines.Reliable OEM spare parts for your needsOur hex flange bolt is an OEM spare part designed for Volvo/Volvo Penta engines. By adhering to standards for OEM products, we offer you quality that delivers the performance your engines deserve. This spare part is the result of intensive internal inspections and ensures durability under demanding conditions.
HEX FLANGE BOLT - 996077 suitable for Volvo/Volvo Penta engines
Robust Hex Flange Bolt – Comparison Number 996077The hex flange bolt with comparison number 996077 is an essential OEM replacement part, specifically designed to operate optimally in engines. This product is suitable for Volvo/Volvo Penta engines and ensures a secure connection of critical components. Rely on the proven quality that our OEM replacement parts provide to maximize the performance of your drive system.Lightweight and Reliable: The Optimal Component for Your EngineWeighing only 0.088 kg, the hex flange bolt has the necessary stability to operate reliably even under demanding conditions. The component is suitable for a variety of applications in marine and stationary engines, ensuring a long service life. The precise workmanship further enhances the safety of your engine.
HEXAGON SCREW - 996073 suitable for Volvo/Volvo Penta engines
Hexagon Bolt for Demanding ApplicationsDiscover the hexagon bolt with the comparison number 996073, designed for the highest standards in engine technology. This OEM spare part is suitable for Volvo/Volvo Penta engines and stands out for its quality workmanship and durability. Weighing just 0.005 kg, it is lightweight yet robust enough to withstand the challenges in marine as well as stationary applications.Rely on OEM Spare PartsThe hexagon bolt is an indispensable component that can be seamlessly integrated into the assembly and maintenance process. As an OEM spare part, this fastening component offers optimal fit and performance in your engine. By utilizing high-quality materials, the hexagon bolt is ideally suited for use in demanding applications.
HEX FLANGE BOLT - 996065 suitable for Volvo/Volvo Penta engines
Hex Flange Bolt for Your Engines Discover the Hex flange bolt with the comparison number 996065, an essential product suitable for Volvo/Volvo Penta engines. This OEM replacement part offers excellent quality and durability, which is crucial in demanding applications such as the marine industry. Weighing only 0.019 kg, it is lightweight yet sturdy.Perfect Fit for OEM Replacement Parts The Hex flange bolt 996065 belongs to the category "Screws" and is designed as an OEM replacement part. This ensures a precise fit and unparalleled performance in engines that are compatible with Volvo/Volvo Penta. By using this part, you ensure that your engine runs smoothly and achieves maximum efficiency.
HEX FLANGE BOLT - 996064 suitable for Volvo/Volvo Penta engines
Hex Flange Bolt – Your Essential Spare PartThe hex flange bolt with the comparison number 996064 is an essential product for anyone who relies on the highest reliability. This OEM spare part weighs only 0.004 kg and is crucial for the functionality of engines. Thanks to its precise design, the hex flange bolt ensures that your engine runs smoothly and efficiently.Suitable for Volvo/Volvo Penta EnginesThe product is suitable for Volvo/Volvo Penta engines and meets the high quality standards of original equipment manufacturers (OEM). With the comparison number 996064, you can be confident that you are choosing an excellent spare part that can be perfectly integrated into your system. Trust in the performance of this bolt and optimize the operation of your machine.
HEX FLANGE BOLT - 996063 suitable for Volvo/Volvo Penta engines
Hex Flange Bolt Suitable for EnginesDiscover the Hex flange bolt with the comparison number 996063, a top-quality product specifically designed. This OEM spare part is suitable for Volvo/Volvo Penta engines and plays a crucial role in the category of screws.Lightweight and Efficient for UseWeighing only 0.006 kg, the Hex flange bolt is not only lightweight but also optimal for various applications in marine and locomotive engineering. Rely on this product, which undergoes strict internal controls regularly to ensure the highest quality.
HEX FLANGE BOLT - 996060 suitable for Volvo/Volvo Penta engines
Hex Flange Bolt for Precise ApplicationsDiscover the hex flange bolt with the comparison number 996060, which is perfectly suited to secure the performance of your engines. This OEM spare part offers excellent quality and is specifically designed to be compatible with Volvo/Volvo Penta engines. Weighing only 0.011 kg, this bolt is a compact and reliable solution for your technical requirements.Compatible with Volvo/Volvo Penta EnginesThe hex flange bolt ensures an optimal connection and stability of all components. Its precise design is crucial to ensure that all parts compatible with Volvo/Volvo Penta engines work together effectively and efficiently. This product minimizes potential downtime of your machines.
HEX FLANGE BOLT - 995536 suitable for Volvo/Volvo Penta engines
Excellent Hex Flange Bolt for Your ApplicationsDiscover the hex flange bolt with comparison number 995536, an OEM replacement part that is ideal for your needs. This hex flange bolt is suitable for Volvo/Volvo Penta engines and ensures a reliable connection with a weight of only 0.02 kg. Rely on the quality of this component to keep your engines in perfect condition.
HEX FLANGE BOLT - 995525 suitable for Volvo/Volvo Penta engines
Robust Hex Flange Bolt Suitable for Volvo/Volvo Penta Discover the hex flange bolt with the reference number 995525, a top-quality OEM replacement part specifically designed to support engines suitable for Volvo/Volvo Penta. Weighing only 0.018 kg, this product is an ideal choice for those who value quality and reliability.Efficient Solutions for Engines This hex flange bolt ensures a secure connection in your engines and is an essential component for maintenance and installation. As an OEM replacement part, this product is characterized by its precise manufacturing and fits perfectly with the requirements of compatible Volvo/Volvo Penta engines. Trust in the quality that defines our over 1 million replacement parts.
HEX FLANGE BOLT - 995523 suitable for Volvo/Volvo Penta engines
Precise Hex Flange Bolt for Demanding ApplicationsDiscover the Hex flange bolt marked with the comparison number 995523. This product is specifically designed and suitable for Volvo/Volvo Penta engines. Weighing only 0.063 kg, this bolt offers an ideal combination of lightness and robustness required for demanding applications in marine and stationary use.Quality of OEM Spare PartsOur Hex flange bolt is a reliable OEM spare part that meets the highest standards. The accuracy and durability of this bolt are crucial for the smooth operation of your engines. You can rely on the comparison number 995523 to provide you with a product that ensures long-lasting connections.
HEX FLANGE BOLT - 995464 suitable for Volvo/Volvo Penta engines
Hex Flange Bolt – Your Solution for EnginesDiscover our Hex flange bolt, certified with the comparison number 995464. This OEM replacement part weighs only 0.02 kg and is specifically designed to withstand reliable application. Our bolt is suitable for Volvo/Volvo Penta engines and ensures an optimal connection within the engine.Ideally Suited for Various ApplicationsThe Hex flange bolt is not just a simple product, but an important component suitable for the renowned Volvo/Volvo Penta engines. With the comparison number 995464, we ensure that you receive an OEM replacement part that meets the highest standards. Rely on quality and reliability when maintaining your engines.
HEX FLANGE BOLT - 995453 suitable for Volvo/Volvo Penta engines
Excellent Hex Flange Bolt: Reference Number 995453The hex flange bolt with reference number 995453 is an essential OEM replacement part used in marine and stationary applications. Manufactured with the highest precision, this product provides a perfect fit for engines. The hex flange bolt is not only functional but also ensures that your engine operates optimally and can unleash its performance.Suitable for Volvo/Volvo Penta EnginesThe hex flange bolt is specifically designed for Volvo/Volvo Penta engines and ensures that all manufacturer standards are met. OEM replacement parts are known for their durability and quality, making this bolt a reliable choice. Trust this product element to keep your engines in excellent condition.
HEX FLANGE BOLT - 994997 suitable for Volvo/Volvo Penta engines
Robust Hex Flange Bolt for Demanding EnginesThe hex flange bolt with the comparison number 994997 is a premium OEM replacement part specifically designed for use in engines. This product offers a precise fit and exceptional performance to ensure functionality.Suitable for Volvo/Volvo Penta EnginesOur product, the hex flange bolt, is suitable for Volvo/Volvo Penta engines and meets all the requirements you expect from a replacement part. Weighing only 0.011 kg, it combines robustness and lightness. It undergoes strict internal checks to ensure it meets the standards of an OEM replacement part.
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.