HEX FLANGE BOLT
HEX FLANGE BOLT Screws for Marine and Diesel Engines
Screws are the fundamental mechanical fasteners that clamp, align, and secure engine components under high load and thermal cycling. In engine rooms and propulsion systems, they create and maintain the critical joint integrity that keeps housings sealed, rotating assemblies aligned, and safety margins intact. Within this category, the HEX FLANGE BOLT is widely specified because its integrated washer face spreads load, reduces surface pressure, and speeds up assembly—key benefits in marine engine and diesel engine environments where uptime and reliability matter.
From cylinder covers and exhaust manifolds to accessory brackets and pump flanges, screws enable precise, repeatable clamping. Their material strength, thread geometry, head design, and surface finish directly influence engine performance, efficiency, and safety. Selecting the right screw—and replacing it with the correct OEM parts—prevents loosening, leakage, and premature wear.
Technical function of screws in engine assemblies and the role of the HEX FLANGE BOLT
In any bolted joint, the screw’s core job is to generate preload. When torqued, a screw stretches elastically and clamps parts together; this preload counters external forces from combustion pressure, vibration, and thermal expansion. A HEX FLANGE BOLT is engineered to stabilize that preload. The broad flange acts like a built-in washer, distributing clamp force over a larger area to protect softer mating surfaces and gaskets, while also improving resistance to vibration-induced embedment.
In a diesel engine, preload stability is essential for sealing oil and coolant channels, maintaining bearing cap alignment, and securing ancillary systems such as fuel injection pumps or turbocharger brackets. The friction conditions between threads and the bearing surface determine torque-to-tension conversion; therefore, coatings (e.g., phosphate-oil, zinc-nickel, or dry-film lubricants) and the head/flange geometry are specified to deliver predictable clamp loads. The HEX FLANGE BOLT for a marine engine application often includes serrations under the flange to enhance bite and mitigate loosening, especially on painted or lightly oiled surfaces.
Materials and strength classes are equally important. Engine screws typically use alloy steels in property classes 8.8, 10.9, or 12.9 for high tensile performance. For hot zones near turbochargers or exhaust manifolds, heat-resistant alloys and tailored coatings combat oxidation and thermal relaxation. Thread forms (metric coarse/fine, UNC/UNF) are matched to housing materials—fine threads for harder metals and precise adjustment, coarse threads for castings to improve pull-out resistance. Properly selected OEM parts ensure thread tolerances, head heights, and flange diameters match the engine designer’s intended load path.
- · High, repeatable clamp load for stable joints.
- · Integrated flange reduces surface pressure and fretting.
- · Optimized coatings for accurate torque-tension behavior.
- · Strength classes (e.g., 10.9) for demanding engine loads.
- · Serrated flange options to resist vibration loosening.
- · Precise thread geometry for reliable assembly and service.
- · Material choices for corrosion and heat resistance.
- · Compatible with torque-angle tightening strategies.
HEX FLANGE BOLT use cases in diesel and marine engine systems
Typical placements include front-end accessory drives, timing covers, oil sump pans, charge-air cooler brackets, exhaust shields, and pump flanges. In these locations, HEX FLANGE BOLT OEM parts enable faster service because the flange head simplifies tooling access and reduces the need for additional washers—an advantage on tightly packaged engine blocks and in cramped engine rooms.
Importance of screws for engine operation, reliability, and service life
When screws lose preload due to vibration, thermal cycling, thread damage, or corrosion, joints begin to move. This micro-movement leads to gasket extrusion, oil or coolant leaks, misalignment, and higher NVH. In severe cases, bracket failures can compromise auxiliary systems, while exhaust leaks raise backpressure and reduce efficiency. Over-torqued or reused screws that have yielded may no longer provide proper clamp force, inviting fatigue cracks. Conversely, under-torqued screws can loosen and back out, with potentially catastrophic consequences in high-speed machinery.
Routine inspection intervals on marine engine fleets often include torque checks and visual examination for corrosion, head rounding, or thread galling. Replacing worn or damaged screws with precisely matched OEM parts protects asset life, lowers the risk of unplanned downtime, and supports safe operation under class and insurer scrutiny.
Advantages of OEM spare parts suitable for Screws
Choosing OEM spare parts suitable for screws ensures technical alignment with the engine maker’s specifications. That means correct head geometry, flange diameter, underhead radius, thread fit class, property class, and coating system—details that directly affect clamp load, corrosion resistance, and service intervals.
For purchasers and shipowners balancing budget with risk, the advantages are clear:
- · Consistent torque-tension behavior across batches.
- · Tightly controlled materials and heat treatment for strength.
- · Correct coatings to prevent galvanic corrosion in marine atmospheres.
- · Fit-for-purpose dimensions for seamless installation and rework.
- · Reduced re-torque needs and fewer joint-related failures.
- · Lower total cost of ownership through extended service life.
- · Traceability and documentation for safety and compliance.
- · Confidence that a HEX FLANGE BOLT will perform as intended in OEM parts assemblies.
In practice, that translates to predictable maintenance windows, minimized downtime, and preserved engine efficiency—especially vital on long-haul routes and in continuous-duty power generation.
MOPA: fast, secure supply of OEM parts for HEX FLANGE BOLT Screws
MOPA is an experienced and reliable partner for OEM spare parts suitable for screws across diesel and gas engines. We focus on speed, quality, and security in the trade of OEM parts, helping operators source the correct HEX FLANGE BOLT for marine engine refits, overhauls, and routine maintenance. With technical know-how, global logistics, and rigorous sourcing, MOPA supports your teams with the right specifications, documentation, and delivery performance to keep engines running efficiently.
Technical support and sourcing confidence
Whether you need property class 10.9 with a phosphate-oil finish for a diesel engine timing cover or a heat-resistant HEX FLANGE BOLT configuration for hot-end brackets, MOPA aligns part selection with application loads, materials, and tightening methods. That alignment safeguards clamp integrity and extends the service life of connected components.
Conclusion: screws and HEX FLANGE BOLT value in engine applications
Screws are the backbone of engine joint integrity, and the HEX FLANGE BOLT adds proven advantages in load distribution, assembly speed, and vibration resistance. Selecting OEM spare parts suitable for screws ensures the right materials, dimensions, and coatings, preserving performance, reliability, and lifecycle value in diesel and marine engine fleets.
High-Quality Hex Flange Bolt for Demanding ApplicationsDiscover our hex flange bolt with the comparison number 06032156307 – your essential OEM replacement part needed for a variety of applications in high-performance engines. This excellent product solution ensures that all components work together harmoniously. Ideally suited for maintenance and repairs, this screw provides the necessary quality for reliable results.
Detailed Hex Flange Bolt for EnginesDiscover the hex flange bolt with the comparison number 06032166315, which is ideal for various applications in engines. This product is a significant OEM spare part that meets high-quality standards, ensuring optimal performance in engines. Weighing only 0.039 kg, it fits perfectly into many applications while providing stability and reliability.
Based on Hex flange boltDiscover our Hex flange bolt, the premium product for demanding applications. It carries the comparison number 06032166331 and represents quality and reliability. As a specialized OEM spare part, it provides perfect integration into your systems to ensure the performance of your engines.Compatibility with MAN D EnginesThis Hex flange bolt is suitable for MAN D engines, enabling optimal fit and functionality. Weighing only 0.036 kg, this component is ideal for marine and stationary applications and is an essential part of your machines.
Essential Product – Hex Flange BoltOur Hex flange bolt (comparison number: 06032166320) is an essential OEM spare part that ensures a precise fit for use with MAN D engines. Weighing just 0.057 kg, this product is perfectly balanced in hand while also providing the stability required for applications in maritime and stationary environments.Suitable for MAN D – Performance You Can Rely OnThe Hex flange bolt has been designed to meet specific requirements for MAN D engines, making it the perfect OEM spare part for anyone looking to minimize management costs and downtime. Each spare part meets the high standard of OEM quality, ensuring the long-term protection of your technologies.
Reliable OEM Replacement Part with Comparison NumberDiscover the product "Hex flange bolt" with the comparison number 06032168514. This high-quality OEM replacement part impresses with precise workmanship and durability. Ideally characterized, it belongs to the category "Screws" and meets the highest standards.Suitable for MAN D EnginesOptimize your engine performance with the hex flange bolt, suitable for MAN D engines. Our replacement parts are designed to ensure efficient operational performance and can be used in various applications.
HEX FLANGE BOLT with the comparison number 995536 suitable for Volvo/Volvo Penta engines
HEX FLANGE BOLT with the comparison number 06032190005 suitable for MAN D-engines
Premium Hex Flange Bolt: A Reliable ProductDiscover the high-quality spare part, the Hex flange bolt, with the comparison number 06032168203. This premium product is exactly what you need to ensure the performance of your engines. It weighs only 0.007 kg and offers a reliable connection that is ideal for various applications in marine and stationary use.
Premium Hex Flange Bolt suitable for Volvo/Volvo PentaThe Hex flange bolt (comparison number: 984754) is a proven OEM spare part that is ideal for Volvo/Volvo Penta engines. This product belongs to the category of screws and meets all necessary standards, particularly for the demanding requirements in marine and stationary applications.
Hex Flange Bolt with Comparison Number 06032166516 Discover the hex flange bolt with the comparison number 06032166516, which optimally meets your requirements in the spare parts sector. This special screw, weighing 0.098 kg, ensures a consistent connection in various engine systems. It is an OEM spare part to enable the highest standard quality.Optimal Fit for MAN D Engines This hex flange bolt is suitable for MAN D engines and provides excellent stability during operation. OEM spare parts like this product are the perfect choice, as they make the difference compared to non-original solutions. This way, you benefit from maximum efficiency and performance.
Hex Flange Bolt Suitable for Volvo/Volvo PentaDiscover our Hex flange bolt, the OEM spare part specially designed to perfectly fit Volvo/Volvo Penta engines. With the reference number 991606, you receive a component known for its reliability and performance in necessary applications. It meets high standards and ensures that your engine always functions precisely.Exact Dimensions and Ideal WeightThis component has a length and width of 3.3 cm each, with a height of 1.8 cm, and it weighs only 0.018 kg. Despite its compact dimensions, the Hex flange bolt provides the required stability. It is thus an ideal OEM spare part for all applications where precision and strength are required.
Hex Flange Bolt: Your Best ChoiceDiscover the precise hex flange bolt with the comparison number 06032168317, specifically designed for MAN D engines. This product belongs to the category of screws and plays an essential role in your engine technology. With a lightweight of only 0.04 kg, it offers you easy handling as well as reliable performance in demanding applications.OEM Replacement Parts in Tested QualityAs an OEM replacement part, the hex flange bolt provides the quality and reliability that makes your work easier. The product can be reliably used for your MAN D engines, ensuring perfect fit, which optimizes the efficiency and longevity of your systems. Take advantage of the original equipment manufacturer quality at a fair price.
Strong Hex Flange Bolt for Durable EnginesDiscover our hex flange bolt with the reference number 06032152423, specifically designed for the demands of engines. This OEM replacement part weighs only 0.1 kg and combines stability with lightness. It offers precision fit and high quality, making it the ideal choice for applications in industrial and maritime fields.
Hex Flange Bolt with Comparison Number 984751Discover our hex flange bolt with the comparison number 984751, an essential OEM spare part compatible with Volvo/Volvo Penta engines. This product is designed to enhance the efficiency and reliability of your engines. Weighing only 0.021 kg, the hex flange bolt is lightweight but offers stable functionality and durability.Precision and Quality – Consistent through OEMOur hex flange bolt, comparison number 984751, belongs to the category of OEM spare parts known for their high precision. Compared to aftermarket parts, this OEM spare part is manufactured to work precisely and reliably. It’s the logical choice for users who value high-performance engines!
Hex Flange Bolt for Reliable EnginesDiscover the Hex flange bolt with the comparison number 06028490025. This product is an essential OEM replacement part that ensures an optimal connection for various applications. Its robust design impresses with durability, which is crucial to meet the demands of engines in marine and industrial use.Suitable for MAN D EnginesOur Hex flange bolt is suitable for MAN D engines, a hallmark of the highest precision in construction. These features make the OEM replacement part the ideal choice to secure the efficiency and performance of your engines. Trust in our years of experience to support your needs for replacement parts.
Efficient Hex Flange Bolt for Compatible MAN D EnginesDiscover our Hex flange bolt, an essential product designed for reliable use in engines. This OEM spare part impresses with excellent workmanship and offers outstanding connection. With the comparison number 06032156306, you secure a component that meets high demands.
Precise Hex Flange Bolt for Optimal Performance Our hex flange bolt with the comparison number 06032168615 is a precise OEM replacement part that offers optimized performance in various applications. Designed for robustness, it meets the high demands placed on engines.Replacement Part Suitable for MAN D Engines This product is suitable for MAN D engines and ideal for various applications in the marine and stationary sectors. Trust that the hex flange bolt will meet all your requirements and keep your machinery operating reliably.
Precision Hex Flange Bolt – Comparison Number 991605Discover the hex flange bolt with the comparison number 991605, an indispensable product for diesel and gas engines. This precisely manufactured OEM spare part is suitable for Volvo/Volvo Penta engines and provides a durable, reliable connection in your machine.
HEX FLANGE BOLT with the comparison number 996077 suitable for Volvo/Volvo Penta engines
Convincing Hex Flange BoltDiscover the Hex flange bolt, comparison number 06032168415, which is the perfect replacement part for your need for performance and safety. This bolt belongs to the category "Screws" and has been designed to meet the demands of high-performance engines. With a weight of only 0.06 kg, it simplifies installation while providing stability.
Robust Hex Flange Bolt with Comparison Number 06032166203Discover our Hex flange bolt with the comparison number 06032166203, specifically designed to deliver optimal performance. This OEM replacement part ensures a perfect fit and reliability during use. Weighing only 0.007 kg, the bolt is both user-friendly and stable for demanding applications.
Reliable Hex Flange Bolt Suitable for MAN DDiscover the Hex flange bolt, an essential OEM spare part specifically designed for use in MAN D engines. With the comparison number 06032168407, this product represents an effective solution for ensuring engine performance. The compact dimensions of 4.5 cm in length and width, as well as 2.3 cm in height, make this screw a practical component. Weighing only 0.04 kg allows for effortless handling.Perfect Fit for Your MAN D EnginesThis spare part impresses with excellent fit and is ideally suited for the requirements of diesel and gas engines in marine and stationary applications. As an OEM spare part, the Hex flange bolt ensures quality that optimizes the lifespan of the engines and enhances their efficiency. Rely on reliability and proven standards to operate your equipment optimally.
Robust Hex Flange Bolt for Your Applications Discover our product, the Hex flange bolt with the reference number 992333, optimized for reliable performance in various applications. This replacement part is suitable for Volvo/Volvo Penta engines and offers you excellent quality and durability.Precision and Reliability in Use Weighing only 0.205 kg, the Hex flange bolt is easy to handle, without compromising on robustness and efficiency. It meets all manufacturer quality standards and thus stands out from aftermarket alternatives that often do not provide the same performance.
Quality Hex Flange Bolt for Efficient EnginesDiscover our Hex flange bolt (comparison number: 06032168506), an essential OEM spare part specifically designed for engines. This bolt is suitable for MAN D and is characterized by maximum loosenability and stability.