3920622
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3920622, is a specialized fastener produced by Cummins. This screw is integral to the maintenance and operation of commercial trucks, providing a secure and reliable fastening solution. Cummins, a renowned manufacturer in the automotive industry, is known for its commitment to quality and innovation, ensuring that their components meet the demanding requirements of commercial vehicle applications ³.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area to distribute the load and prevent the screw from sinking into the material. Within mechanical systems, these screws are used to secure components, ensuring structural integrity and reliable operation ¹.

Purpose and Role in Truck Operation

The 3920622 Hexagon Flange Head Cap Screw plays a significant role in the operation and maintenance of commercial trucks. It is commonly used in applications where a high degree of fastening security is required, such as in the attachment of engine components, chassis parts, and other critical assemblies. The screw’s design ensures that it can withstand substantial loads and vibrations, which are common in heavy-duty truck environments ².

Key Features

The 3920622 Hexagon Flange Head Cap Screw boasts several key features that enhance its functionality and durability. Its hexagonal head design allows for easy and precise tightening using wrenches or socket tools. The flange at the base of the screw provides additional bearing surface, which helps in distributing the load more evenly and preventing the screw from pulling through the material. Additionally, the screw is made from high-quality materials that offer excellent resistance to corrosion and wear, ensuring long-term reliability in demanding applications.

Benefits

Using the 3920622 Hexagon Flange Head Cap Screw in truck maintenance offers several benefits. The screw’s design provides improved fastening security, making it less likely to loosen over time due to vibrations. The flange also aids in preventing the screw from sinking into the material, which can be particularly beneficial in applications involving softer or less dense materials. Furthermore, the ease of installation and removal, thanks to its hexagonal head, allows for efficient maintenance procedures, reducing downtime and enhancing overall productivity.

Installation and Usage

Proper installation of the 3920622 Hexagon Flange Head Cap Screw is vital to ensure optimal performance and longevity. It is important to follow the recommended torque specifications provided by the manufacturer to achieve the correct clamping force without over-tightening, which could lead to damage. Using the appropriate tools and ensuring that the mating surfaces are clean and free from debris will also contribute to a secure and reliable fastening. Regular inspection and maintenance of the screws can help identify any signs of wear or loosening, allowing for timely re-tightening or replacement.

Troubleshooting and Maintenance

Common issues associated with Hexagon Flange Head Cap Screws include loosening due to vibrations, corrosion, and wear. To address these issues, regular inspections should be conducted to check for any signs of damage or loosening. If corrosion is detected, it may be necessary to replace the screw to prevent further degradation. Additionally, ensuring that the screws are tightened to the correct torque specifications during installation can help mitigate loosening over time. Proper maintenance practices, such as keeping the fastening areas clean and free from contaminants, will also contribute to the prolonged lifespan of the screw.

Manufacturer - Cummins

Cummins is a well-established manufacturer with a strong reputation in the automotive and heavy-duty truck industries. The company has a history of innovation and commitment to quality, producing a wide range of components that meet the rigorous demands of commercial vehicle applications. Cummins’ dedication to research and development ensures that their products, including the 3920622 Hexagon Flange Head Cap Screw, are designed to deliver reliable performance and durability in even the most challenging environments ³.

Cummins Engine Compatibility with Part 3920622

The Hexagon Flange Head Cap Screw, part number 3920622, manufactured by Cummins, is a versatile component that finds application across a range of Cummins engines. This screw is designed to secure various parts within the engine assembly, ensuring structural integrity and operational efficiency.

Cummins ISC and ISL Engines

The ISC CM554 and ISL CM554 engines are part of Cummins’ lineup of medium-duty diesel engines. These engines are known for their robust performance and reliability. The 3920622 screw is used in these engines to fasten components that require a secure and stable connection, such as mounting brackets and covers.

Cummins QSC and QSL Engines

The QSC8.3 CM554 and QSL9 CM554 engines are part of Cummins’ heavy-duty diesel engine series. These engines are designed for demanding applications, providing high power output and durability. The 3920622 screw is integral in these engines, securing parts that are critical to the engine’s operation, such as valve covers and other structural elements.

Cummins L9 and QST Engines

The L9.3 L105 and QST30 CM552 engines are part of Cummins’ range of high-performance diesel engines. These engines are engineered for applications that require exceptional power and efficiency. The 3920622 screw is used in these engines to fasten components that need a reliable and strong connection, such as engine blocks and various covers.

Cummins 6B and 6C Engines

The 6B5.9 and 6C8.3 engines are part of Cummins’ lineup of medium-duty diesel engines. These engines are known for their balance of power and efficiency. The 3920622 screw is utilized in these engines to secure parts that are essential for maintaining the engine’s structural integrity, such as intake manifolds and other critical components.

Each of these engines benefits from the use of the 3920622 Hexagon Flange Head Cap Screw, ensuring that all fastened parts remain securely in place, contributing to the overall performance and longevity of the engine.

Role of Part 3920622 Hexagon Flange Head Cap Screw in Engine Systems

The part 3920622 Hexagon Flange Head Cap Screw is integral in securing and maintaining the structural integrity of various components within engine systems. Its robust design ensures reliable fastening in high-stress environments.

Turbocharger and Compressor Assembly

In the turbocharger and compressor arrangement, the Hexagon Flange Head Cap Screw is used to fasten critical components such as the compressor housing to the turbine housing. This secure attachment is vital for maintaining the alignment and efficiency of the turbocharger, ensuring optimal airflow and pressure management within the engine system.

Fuel Pump and Mounting Components

For the fuel pump, this screw plays a significant role in attaching the fuel pump to its mounting bracket. This secure connection is essential for the stable operation of the fuel pump, which is responsible for delivering fuel to the engine under varying conditions. Additionally, it is used in the fuel pump coupling to ensure a tight and reliable connection between the fuel pump and the engine, preventing leaks and ensuring consistent fuel delivery.

Expansion Tank and Mounting

In the expansion tank system, the Hexagon Flange Head Cap Screw is employed to mount the expansion tank securely to its designated location. This is important for maintaining the integrity of the cooling system, allowing for the safe expansion and contraction of coolant without compromising the system’s seals or connections. It is also used in the expansion tank mounting to ensure that the tank remains firmly in place, even under the dynamic conditions of engine operation.

Front Engine Guard and Heat Shield Bracket

The front engine guard and heat shield bracket utilize this screw to provide a secure attachment to the engine frame. This not only protects sensitive components from debris but also helps in managing heat distribution around the engine, contributing to the overall safety and efficiency of the engine system.

Water Makeup Tube

In the water makeup tube arrangement, the Hexagon Flange Head Cap Screw ensures a leak-proof connection, which is essential for maintaining the coolant level in the engine. This reliable fastening helps in preventing coolant loss, thereby ensuring consistent engine temperature and performance.

Overall, the part 3920622 Hexagon Flange Head Cap Screw is a versatile and essential component in various engine systems, providing the necessary secure attachments that contribute to the engine’s reliability and performance.

Conclusion

The 3920622 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its design, featuring a hexagonal head and flanged base, ensures secure and reliable fastening in demanding applications. The screw’s key features, including corrosion resistance and ease of installation, contribute to its durability and efficiency. Proper installation, regular maintenance, and adherence to torque specifications are essential for optimal performance. Cummins’ commitment to quality and innovation ensures that this part meets the rigorous demands of commercial vehicle applications, enhancing the reliability and longevity of engine systems.