3393717
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3393717, is a component manufactured by Cummins. This screw is integral to the assembly and maintenance of commercial trucks, providing a reliable fastening solution that ensures the structural integrity and operational efficiency of various truck components.

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 distributes load and prevents the screw from being driven too far into the material. Within mechanical systems, these screws play a role in securely joining components, distributing loads evenly, and resisting loosening due to vibration or movement ¹.

Purpose and Role in Truck Operation

The 3393717 Hexagon Flange Head Cap Screw serves a specific purpose in the context of commercial trucks. It is utilized to secure various components, ensuring they remain firmly in place under operational conditions. This screw contributes to the structural integrity of the truck by providing a stable connection between parts, which is vital for the safe and efficient operation of the vehicle.

Key Features

The 3393717 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal head design allows for secure and efficient tightening using common tools. The flange at the base of the screw serves to distribute the load and prevent over-driving, which can compromise the integrity of the fastened components. Additionally, the material properties of the screw, typically a high-strength alloy, contribute to its resistance to corrosion and mechanical stress, ensuring long-term reliability in demanding truck applications.

Benefits

The 3393717 Hexagon Flange Head Cap Screw offers several benefits that make it a preferred choice for fastening applications in commercial trucks. These include enhanced fastening security due to its design, resistance to vibration which helps maintain the integrity of the fastened components over time, and ease of installation and removal, facilitating maintenance and repair processes.

Installation and Usage

Proper installation of the 3393717 Hexagon Flange Head Cap Screw is crucial for ensuring optimal performance and longevity. It is recommended to follow torque specifications provided by the manufacturer to achieve the correct tension without over-tightening, which could damage the screw or the components being fastened. Best practices include using the appropriate tool for the hexagonal head to apply even torque and inspecting the screw and surrounding area for any signs of damage or wear before installation ².

Troubleshooting and Maintenance

Common issues associated with Hexagon Flange Head Cap Screws include loosening due to vibration, corrosion, and damage from improper installation. Troubleshooting tips involve inspecting the screw and fastened components for signs of wear or corrosion, ensuring the screw is correctly torqued, and replacing any damaged screws promptly. Regular maintenance practices, such as cleaning and inspecting the screws during routine truck servicing, can help prolong their lifespan and ensure continued reliable performance.

Compatibility and Applications

The 3393717 Hexagon Flange Head Cap Screw is designed for use in various applications within commercial trucks. It is compatible with a range of systems and components, providing a versatile fastening solution for securing parts that require a high degree of reliability and durability. Its applications span across different truck models and systems, making it a valuable component in the maintenance and operation of commercial vehicles.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range is designed to meet the demanding requirements of commercial applications, ensuring reliability, efficiency, and performance in various operating conditions.

Cummins Engine Part 3393717: Hexagon Flange Head Cap Screw Application

The Cummins part number 3393717, a Hexagon Flange Head Cap Screw, is integral to the assembly and maintenance of several Cummins engine models. This part is designed to provide secure fastening in various engine applications, ensuring the integrity and reliability of the engine’s components.

Application in Specific Engine Models

6C8.3, ISB3.9 CM2220 B107, ISF2.8 CM2220 F129, ISF3.8 CM2220 AN, ISF3.8 CM2220 F103, QSB3.9 CM2880 B138, QSC8.3 CM850 (CM2850), QSK60 CM850 MCRS, QSM11 CM570

The Hexagon Flange Head Cap Screw (part number 3393717) is utilized across a range of Cummins engines, including the 6C8.3, ISB3.9 CM2220 B107, ISF2.8 CM2220 F129, ISF3.8 CM2220 AN, ISF3.8 CM2220 F103, QSB3.9 CM2880 B138, QSC8.3 CM850 (CM2850), QSK60 CM850 MCRS, and QSM11 CM570. This part is essential for securing various engine components, ensuring they remain tightly fastened and properly aligned during operation.

Grouping by Engine Series

• ISB Series: The ISB3.9 CM2220 B107, ISF2.8 CM2220 F129, ISF3.8 CM2220 AN, and ISF3.8 CM2220 F103 engines all utilize the Hexagon Flange Head Cap Screw for securing components within their respective assemblies. This ensures consistent fastening across similar engine models, facilitating easier maintenance and repair procedures.

• QSB Series: The QSB3.9 CM2880 B138 engine also incorporates the Hexagon Flange Head Cap Screw (part number 3393717) in its design. This screw is critical for maintaining the structural integrity of the engine, particularly in areas where high torque and vibration are common.

• QSC and QSK Series: The QSC8.3 CM850 (CM2850) and QSK60 CM850 MCRS engines use this screw to secure various components, ensuring that the engine operates smoothly and efficiently. The flange head design provides a larger bearing surface, which is beneficial in high-stress environments.

• QSM Series: The QSM11 CM570 engine also relies on the Hexagon Flange Head Cap Screw for critical fastening applications. This part is crucial for maintaining the alignment and stability of engine components, contributing to the overall performance and longevity of the engine.

The use of the Hexagon Flange Head Cap Screw (part number 3393717) across these diverse engine models underscores its importance in Cummins’ engine design. This part ensures that the engine components are securely fastened, providing reliability and durability in various operating conditions.

Role of Part 3393717 Hexagon Flange Head Cap Screw in Engine Systems

The 3393717 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems, ensuring stability and integrity under operational conditions.

In the aftercooler system, this screw is utilized to fasten the aftercooler to its mounting bracket, ensuring that the aftercooler remains securely in place as it cools the compressed air from the turbocharger. This is essential for maintaining the efficiency of the cooling process and preventing any potential misalignment that could lead to performance issues.

At the exhaust outlet connection, the screw plays a role in securing the exhaust manifold to the engine block or the turbocharger housing. This connection must be robust to withstand the high temperatures and pressures of the exhaust gases, ensuring a leak-free seal that contributes to the overall efficiency and safety of the engine.

Within the heat exchanger, the screw is employed to attach the heat exchanger components, such as the fins and tubes, ensuring optimal heat transfer efficiency. A secure attachment is vital for the heat exchanger to function correctly, dissipating heat from the engine coolant or oil effectively.

The heat shield relies on the 3393717 screw to maintain its position and integrity. The heat shield protects nearby components from the intense heat radiated by the exhaust system, and secure fastening is necessary to prevent any shifting or damage that could expose other parts to excessive heat.

In the oil cooler system, this screw is used to fasten the oil cooler to its mounting points. The oil cooler is responsible for dissipating heat from the engine oil, and a secure attachment ensures that it remains in the correct position to facilitate efficient cooling.

The product installation package often includes the 3393717 screw as a standard component for assembling various engine parts. Its versatility makes it a go-to fastener for ensuring that components are correctly and securely installed during the initial setup or maintenance procedures.

In turbocharger systems, the screw is utilized in multiple applications. It secures the turbocharger to its mounting bracket, ensuring that it remains stable under the high-speed rotation and pressure conditions. Additionally, it is used in the turbocharger arrangement to fasten components such as the compressor housing, turbine housing, and bearing system, contributing to the turbocharger’s overall performance and durability.

Lastly, at the turbocharger location, the screw ensures that the turbocharger is correctly positioned in relation to the engine and exhaust system. This precise positioning is essential for optimal airflow and pressure management, directly impacting the engine’s power output and efficiency.

Conclusion

The 3393717 Hexagon Flange Head Cap Screw is a critical component in the assembly and maintenance of Cummins engines and commercial trucks. Its design, featuring a hexagonal head and flanged base, provides secure fastening, load distribution, and resistance to vibration and corrosion. The screw’s applications span across various engine models and systems, ensuring the structural integrity and operational efficiency of the components it secures. Proper installation, maintenance, and troubleshooting practices are essential for maximizing the performance and longevity of this Cummins part.