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:
SET SCREW - 83910200504 suitable for MAN D engines
Set screw suitable for MAN D enginesDiscover our set screw with the comparison number 83910200504, an essential OEM replacement part for your engines. This product belongs to the group of screws and is specifically designed to optimize the functionality of engines. Weighing only 0.03 kg, the set screw offers a robust solution that is durable and efficient.Perfect solution for MAN D enginesThe set screw is optimally suited for MAN D engines and ensures that the performance of these robust engines is not compromised. By using OEM replacement parts, you can be assured that the set screw meets the necessary specifications to support the smooth operation of your machines.
HEX SHOULDER STUD - 83910010510 suitable for MAN D engines
Hex Shoulder Stud for Reliable ApplicationsDiscover the Hex shoulder stud, comparison number 83910010510, which is precisely designed for MAN D engines. This product belongs to the article group "Screws" and provides a reliable solution for diesel and gas engines in marine and stationary applications. Weighing only 0.01 kg, it is ideal for numerous applications.Precise Solution for MAN D EnginesThe Hex shoulder stud is the perfect spare part, fitting for MAN D engines. Its robust construction and the use of top-quality materials ensure that you are always well-equipped in your applications. Our OEM spare parts offer you the reliability you need for your projects.
HEX SHOULDER STUD - 83910010509 suitable for MAN D engines
Optimal Quality with Comparison Number 83910010509 Discover the product: the hex shoulder stud with the comparison number 83910010509. This spare part not only offers excellent functionality but is also an important component for the maintenance of engines. Designed with care and precision, this screw is ideal for professional applications.Tailored Solution for MAN D Engines This high-quality spare part is suitable for MAN D and ensures the necessary quality required in maritime and stationary applications. With this hex shoulder stud, you can be confident that the engine operates reliably.
SCREW/BOLT - 83904900584 suitable for MAN D engines
Robust OEM Replacement Parts for EnginesDiscover our first-class product, the screw/bolt with the comparison number 83904900584. This OEM replacement part is suitable for MAN D engines and offers excellent performance. Rely on our offer, which is specifically designed for marine and stationary use.Precise Standards for MAN D EnginesOur screw/bolt is an essential component, suitable for MAN D, providing the highest reliability. With the comparison number 83904900584, this OEM replacement part offers an exact fit, making it the ideal choice for your engines.
HOLLOW SCREW - 83904900580 suitable for MAN D engines
Premium Quality: Hollow Screw for Your EnginesThe hollow screw with the reference number 83904900580 is an exclusive product from the category Screws. It represents a top-quality OEM replacement part that provides optimal fit for engines designed for MAN D engines.Suitable for MAN D Engines: Efficiency at Its BestThis OEM replacement part is exceptionally reliable and ideally suited to support the performance of engines designed for MAN D engines. Our products stand out from aftermarket offerings and meet the highest standards.
- 83904900578 suitable for MAN D engines
Robust Flat Head Screw for Your EnginesDiscover the flat head screw m6x25-8.8-t30-a3c, a precisely manufactured replacement part that impresses with the comparison number 83904900578. This reliable product is suitable for MAN D engines and provides the quality you need for use in demanding environments.Original Equipment Manufacturer Quality through Replacement PartsOur flat head screw m6x25-8.8-t30-a3c belongs to the replacement parts we offer in original equipment manufacturer quality. The comparison number 83904900578 ensures that you receive a product specifically designed for your requirements and delivers high performance.
- 83904900572 suitable for MAN D engines
Diverse Range of Flat Head ScrewsExperience the flat head screw M8x40-A2-SW, an essential OEM replacement part, marked with the reference number 83904900572. This product has been designed specifically for MAN D engines and offers the reliability needed for marine and stationary applications.
SCREW/BOLT - 83904900568 suitable for MAN D engines
Excellent Screw for Efficient EnginesOur screw with the comparison number 83904900568 is the ideal OEM replacement part for engines. This product has been designed to achieve an exact fit and meets the highest standards. It is suitable for MAN D engines and supports their optimal operation.Reliability Through OEM Replacement PartsThe product meets all the requirements you can expect from a replacement part. The screw offers long-term functionality and maintainability for your engines. It is an essential component that can help you minimize downtime and maximize efficiency, tailored to the specific needs of MAN D.
ADJUSTING SCREW - 83904900567 suitable for MAN D engines
Excellent Adjusting Screw for MAN D EnginesDiscover the Adjusting Screw with the comparison number 83904900567, an essential OEM spare part that is perfectly suited for demanding applications. This product is designed specifically for MAN D engines. Trust our experience with replacement parts in original equipment manufacturer quality.
SCREW/BOLT - 83904900566 suitable for MAN D engines
Precision Product for Specific ApplicationsDiscover our outstanding product, the screw/bolt with the comparison number 83904900566. This OEM replacement part is specifically suitable for MAN D engines and offers the highest quality. As part of our product group Screws, it is ideal for use in diesel and gas engines in marine and stationary applications.Reliable Quality for Smooth OperationThe screw/bolt distributed under the comparison number 83904900566 ensures excellent fit and durability. It is an essential component suitable for MAN D engines and plays a crucial role in the performance reliability of your engines. Rely on OEM replacement parts that impress with their manufacturer quality.
ADJUSTING SCREW - 83904900564 suitable for MAN D engines
Adjusting Screw for Optimal Engine PerformanceDiscover the adjusting screw with the comparison number 83904900564, which is suitable for MAN D engines. This OEM spare part offers precise fit and high quality to support the performance of your engines and ensure their functionality.
SCREW/BOLT - 83904900561 suitable for MAN D engines
Precision Screw/Bolt Suitable for MAN D EnginesDiscover the screw/bolt with the comparison number 83904900561, an OEM replacement part suitable for MAN D engines. These key components provide the necessary precision for stable operation. Rely on manufacturing standards designed for high performance.Reliable Replacement Part for Your EnginesThe screw/bolt is perfectly suited and compatible with MAN D engines. Each OEM replacement part is made from the finest materials, ensuring longevity and reliability. Maximum quality secures the performance of your engines and offers you the best possible support.
SCREW/BOLT - 83904900557 suitable for MAN D engines
Reliable Screw for Marine and Stationary EnginesThe screw with the reference number 83904900557 is an essential OEM replacement part. This product offers the perfect solution for a long-lasting connection and is specifically suitable for MAN D engines. Special material selection and excellent workmanship characterize this product, which is used in both marine and stationary applications.
SCREW/BOLT - 83904900550 suitable for MAN D engines
Precise Screw/Bolt Suitable for MAN D EnginesDiscover the screw/bolt with the comparison number 83904900550, which is essential for the reliable function of your engines. This product is perfectly suitable for MAN D engines and ensures that your machines always run flawlessly. Weighing only 0.01 kg, this screw/bolt offers an optimal balance between lightness and stability, especially in demanding applications.OEM Spare Parts for Maximum EfficiencyOur screw/bolt belongs to the category of OEM spare parts and meets the highest industry standards. Every OEM spare part we offer delivers the quality and precision you expect. When used in the service of MAN D engines, you can rely on getting a reliable product that fulfills your requirements.
PAN-HEAD SCREW - 83904900525 suitable for MAN D engines
Robust Pan-head screw with comparison number 83904900525Discover the pan-head screw marked with the comparison number 83904900525. This product is essential for your engines and impresses with its reliable performance. Weighing only 0.005 kg, this screw is ideally suited to ensure that all components are effectively connected.Suitable for MAN D enginesThis pan-head screw is suitable for MAN D engines and supports the stability and efficiency of your system. As a top-quality OEM spare part, it meets the highest standards for quality and performance. Trust in our product quality to create optimal conditions for your engine operation.
PAN-HEAD SCREW M8X15-A2-SW - 83904900524 suitable for MAN D engines
Reliable Pan-head Screw M8x15-A2-SWThe Pan-head screw M8x15-A2-SW is an excellent OEM replacement part designed for optimal performance. With the comparison number 83904900524, this product is suitable for MAN D engines and represents the highest quality. By using first-hand parts, you ensure a reliable operation of your engines.OEM Replacement Parts for Maximum PerformanceOur Pan-head screw M8x15-A2-SW product meets the strict requirements of manufacturers. This OEM replacement part offers unmatched quality compared to aftermarket parts. Weighing only 0.008 kg, the screw is easy to handle while being extremely durable.
PAN-HEAD SCREW M8X25-A2-SW - 83904900523 suitable for MAN D engines
PAN-HEAD SCREW M8X25-A2-SW with the comparison number 83904900523 suitable for MAN D engines
SCREW/BOLT - 83904900503 suitable for MAN D engines
High-Performance Screw with Comparison Number 83904900503Our screw with the comparison number 83904900503 is a crucial OEM replacement part that is compatible with MAN D engines. These fasteners provide the quality you expect from top-tier engine components. Rely on the experienced expertise of our OEM replacement parts.
HOLLOW SCREW - 83904900501 suitable for MAN D engines
Superior Quality for Your EnginesDiscover our proven product, the Hollow screw with the comparison number 83904900501. This Hollow screw is an essential OEM replacement part specifically designed for MAN D engines. Weighing only 0.05 kg, this component can be easily installed and ensures reliable function for your engines.
PAN-HEAD SCREW M8X35-A2-SW - 83904900023 suitable for MAN D engines
Reliable Pan-head screw m8x35-a2-swDiscover our Pan-head screw m8x35-a2-sw, a top-quality OEM spare part that is perfectly suited for MAN D engines. With the comparison number 83904900023, this product offers a flawless fit and functionality, which is crucial for the efficiency of your machines.Lightweight and Robust: Features in DetailWeighing only 0.01 kg, this Pan-head screw provides excellent handling. The high-quality material not only ensures high tensile strength but also durability, sustainably enhancing the performance of your engines.
PAN-HEAD SCREW M8X25-A2-SW - 83904900022 suitable for MAN D engines
Precision Product: Pan-head screw M8x25-A2-SW The pan-head screw M8x25-A2-SW is a top-quality OEM replacement part that ensures a precise fit. The comparison number 83904900022 allows for easy identification, while the high quality of the materials supports durability and reliability when used in engines.
PAN-HEAD SCREW M8X15-A2-SW - 83904900021 suitable for MAN D engines
Pan-head screw m8x15-a2-sw for MAN D enginesDiscover the pan-head screw m8x15-a2-sw with the reference number 83904900021, an essential OEM replacement part designed for MAN D engines. Weighing only 0.008 kg, this product contributes to the optimal function of your engines.Reliable OEM replacement parts for your machinesOur OEM replacement parts are of the highest quality. Unlike aftermarket products, they offer the safety and durability you need. Trust reference number 83904900021 to maintain your MAN D engines.
SCREW/BOLT - 83900010514 suitable for MAN D engines
Precise OEM Replacement Part for Your EnginesThe screw (comparison number: 83900010514) is a top-quality OEM replacement part specifically designed for the requirements of engines. It provides you with the perfect fit to achieve optimal performance for your machines.Quality and ReliabilityThis product is suitable for MAN D engines and impresses with its high precision. Stringent standards are a priority in manufacturing, making each screw an essential component for long-lasting engine operation.
HEXAGON BOLT - 83900010512 suitable for MAN D engines
Hexagon bolt with comparison number 83900010512Discover our Hexagon bolt with the comparison number 83900010512, an indispensable OEM spare part that you can use in your applications. This product is ideally suited to create a reliable connection within your systems.
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.