3644468
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3644468, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is integral to the maintenance and operation of commercial trucks, providing reliable fastening solutions that contribute to the overall efficiency and safety of truck assemblies.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener 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 load and prevent the screw from being driven too far into the material. Within a truck’s assembly, these screws are used to secure various components, ensuring they remain firmly in place under operational stresses ¹.

Purpose and Role in Truck Operation

The 3644468 Hexagon Flange Head Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is utilized in various truck components where secure fastening is required. These components may include engine mounts, chassis parts, and other critical assemblies where vibration and load are significant factors. The screw’s design ensures that components remain securely fastened, contributing to the truck’s overall performance and longevity ².

Key Features

The 3644468 Hexagon Flange Head Cap Screw boasts several key features that enhance its effectiveness and durability. Its hexagonal head design allows for precise and efficient tightening using common tools. The flange characteristic provides additional bearing surface, which helps in distributing the load and preventing the screw from sinking into the material. Additionally, the screw is made from high-quality materials that offer resistance to corrosion and wear, ensuring long-term reliability in demanding truck environments ³.

Benefits

Using the 3644468 Hexagon Flange Head Cap Screw offers several benefits. The design of the screw enhances fastening security, making it less likely for components to become loose over time. Its resistance to vibration ensures that it remains tight even under the dynamic conditions experienced by commercial trucks. Furthermore, the ease of installation and removal simplifies maintenance procedures, allowing for quick and efficient component changes or repairs ⁴.

Installation Guidelines

To ensure optimal performance and longevity, the 3644468 Hexagon Flange Head Cap Screw should be installed following these guidelines:

1. Ensure the mating surface is clean and free of debris.
2. Align the screw with the designated hole.
3. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings.
4. Verify that the flange is flush with the surface to ensure proper load distribution.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws may include loosening due to vibration or corrosion. To address these issues:

• Regularly inspect screws for signs of loosening or corrosion.
• Re-tighten screws to the specified torque if loosening is detected.
• Replace screws showing significant corrosion or damage to maintain assembly integrity.
• Apply an anti-seize compound during installation to prevent corrosion and facilitate future removal.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and aftermarket parts. With a history spanning over a century, Cummins has established a reputation for quality, reliability, and innovation in the commercial truck industry. The company’s commitment to excellence makes it a trusted source for truck components like the 3644468 Hexagon Flange Head Cap Screw, ensuring that truck operators receive high-quality, dependable parts for their vehicles.

Hexagon Flange Head Cap Screw in Cummins Engines

The Hexagon Flange Head Cap Screw, part number 3644468, is a critical component in several Cummins engine models. This part is integral to the assembly and maintenance of the engines, ensuring secure fastening and structural integrity.

QSK45 CM500 and QSK60 CM500

In the QSK45 CM500 and QSK60 CM500 engines, the 3644468 screw is utilized in various applications where a robust and reliable fastening solution is required. These engines, known for their power and efficiency, benefit from the precision and strength provided by this screw. Its flange head design allows for a larger bearing surface, distributing the load more evenly and reducing the risk of stripping or loosening over time.

QSK60 CM850 MCRS

For the QSK60 CM850 MCRS engine, the 3644468 screw plays a crucial role in maintaining the structural integrity of the engine’s components. Given the higher power output and more demanding operational conditions of this engine, the reliability of the fastening hardware is paramount. The hexagon flange head cap screw ensures that critical engine parts remain securely fastened, contributing to the overall performance and longevity of the engine.

QSK60G

In the QSK60G engine, the 3644468 screw is also a key component, used in various applications throughout the engine. This engine is designed for heavy-duty applications, and the screw’s ability to withstand high stress and provide a secure fastening is essential. The flange head design, combined with the hexagon shape, ensures that the screw can be easily and accurately tightened, which is vital in maintaining the engine’s operational efficiency and safety.

Role of Part 3644468 Hexagon Flange Head Cap Screw in Engine Systems

Aftercooler Systems

In aftercooler systems, the 3644468 Hexagon Flange Head Cap Screw is instrumental in securing various components that facilitate the cooling of compressed air. These screws are typically used to fasten flanges that connect pipes, valves, and other critical components within the aftercooler assembly. By providing a secure and reliable connection, they ensure that the system maintains optimal performance and efficiency. The robust design of the screw helps in withstanding the high pressures and temperatures often encountered in aftercooler systems, contributing to the longevity and reliability of the entire setup.

Cooler Systems

Within cooler systems, the 3644468 Hexagon Flange Head Cap Screw plays a significant role in assembling and maintaining the structural integrity of heat exchangers and cooling coils. These screws are employed to secure flanges that connect different sections of the cooler, ensuring a leak-proof and efficient transfer of heat. The flange head design allows for easy tightening and loosening, facilitating maintenance and repairs without compromising the system’s performance. This reliability is essential in ensuring that the cooler system operates within specified parameters, enhancing the overall efficiency of the engine.

Marine Gear Oil Systems

In marine gear oil systems, the 3644468 Hexagon Flange Head Cap Screw is used to secure components that are exposed to harsh marine environments. These screws are often found in the assembly of oil reservoirs, pumps, and filtration systems. Their corrosion-resistant properties make them ideal for withstanding the saline conditions typical of marine applications. By providing a secure connection, these screws help in maintaining the integrity of the gear oil system, ensuring consistent lubrication and protection of moving parts. This, in turn, contributes to the smooth operation and extended lifespan of marine engines.

Conclusion

The 3644468 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks and Cummins engines. Its design, characterized by a hexagonal head and flanged base, ensures secure fastening and load distribution, contributing to the overall efficiency and safety of truck assemblies. The screw’s resistance to corrosion and vibration, combined with its ease of installation and maintenance, makes it an indispensable part in various engine systems, including aftercoolers, coolers, and marine gear oil systems. Cummins’ reputation for quality and reliability further underscores the importance of this part in ensuring the longevity and performance of commercial trucks and engines.

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