5401384
Hexagon Flange Head Cap Screw
Cummins®

The Cummins part number 5401384, a Hexagon Flange Head Cap Screw, is a component used in the maintenance and assembly of commercial trucks and Cummins engines. This screw is designed to provide secure fastening in various applications, ensuring the integrity and functionality of truck and engine components. Understanding the role and applications of this part is important for maintaining and repairing commercial trucks and engines effectively.

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 easy tightening and loosening using a wrench, while the flange distributes the load over a larger area, reducing the risk of the screw pulling through the material. This design is particularly beneficial in applications where vibration and dynamic loads are present, as it helps to maintain a secure connection ¹.

Role in Truck and Engine Operation

In the context of a commercial truck and Cummins engines, the 5401384 Hexagon Flange Head Cap Screw plays a role in assembling and securing various components. It is used in applications where a strong, vibration-resistant fastening solution is required. By providing a secure connection, this screw helps to maintain the structural integrity of truck and engine components, ensuring safe and reliable operation ².

Key Features

The 5401384 Hexagon Flange Head Cap Screw features a robust design that includes a high-strength material composition, typically a grade of steel that offers excellent tensile strength and resistance to corrosion. The screw has a specific thread type that ensures a tight fit in the corresponding tapped hole, enhancing the fastening security. The flange design not only aids in load distribution but also provides a larger surface area for wrench application, facilitating easier installation and removal.

Benefits

Using the 5401384 Hexagon Flange Head Cap Screw offers several benefits. Its design allows for improved load distribution across the fastened materials, reducing the stress on the screw and the surrounding structure. The resistance to loosening under vibration makes it suitable for dynamic applications. Additionally, the ease of installation and removal, thanks to the hexagonal head and flange, simplifies maintenance procedures ³.

Installation Considerations

Proper installation of the 5401384 Hexagon Flange Head Cap Screw is important to ensure optimal performance and longevity. It is important to follow torque specifications provided by the manufacturer to avoid over-tightening, which can lead to damage, or under-tightening, which can compromise the fastening security. Alignment during installation is also important to ensure the screw engages properly with the tapped hole and the flange sits flush against the material.

Troubleshooting and Maintenance

Common issues with the 5401384 Hexagon Flange Head Cap Screw may include corrosion due to exposure to harsh environments or loosening from dynamic loads. Regular inspection for signs of wear or damage is recommended to identify potential problems early. Maintenance practices such as applying an appropriate anti-corrosion coating and periodically checking the torque can help prolong the lifespan of the screw and ensure continued reliable operation.

Cummins 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 of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range includes components that are designed to meet the demanding requirements of commercial vehicles, ensuring durability, performance, and reliability.

Cummins Engine Part 5401384: Hexagon Flange Head Cap Screw

The Cummins part number 5401384, a Hexagon Flange Head Cap Screw, is a component in the assembly and maintenance of certain Cummins engines. This part is designed to provide a secure fastening solution, ensuring that various engine components remain tightly secured during operation.

Application in Cummins Engines

ISC8.3 CM2250 and ISL9 CM2250 Engines

The Hexagon Flange Head Cap Screw is integral to the assembly of the ISC8.3 CM2250 and ISL9 CM2250 engines. These engines are part of Cummins’ CM2250 series, known for their robust performance and reliability in heavy-duty applications. The 5401384 part number is used in several critical areas within these engines, including:

• Engine Block Assembly: Ensuring that the engine block components are securely fastened.
• Turbocharger Mounting: Providing a reliable connection between the turbocharger and the engine block.
• Exhaust Manifold Attachment: Securing the exhaust manifold to the engine, which is crucial for maintaining exhaust system integrity.

The use of the Hexagon Flange Head Cap Screw in these applications ensures that the engine components are held firmly in place, reducing the risk of loosening or failure under the high stresses encountered during operation. This part’s design, with its hexagonal head and flange, allows for easy and efficient tightening and loosening using standard tools, facilitating maintenance and repair processes.

The precision and durability of the 5401384 part are critical for maintaining the performance and longevity of the ISC8.3 CM2250 and ISL9 CM2250 engines. Its application in these engines underscores Cummins’ commitment to providing high-quality components that meet the demanding requirements of heavy-duty engine operations.

Role of Part 5401384 Hexagon Flange Head Cap Screw in Engine Systems

Drive System Integration

In the drive system, the 5401384 Hexagon Flange Head Cap Screw is employed to secure various components that are essential for the transmission of power from the engine to the wheels. This includes fastening the driveshaft to the differential and ensuring that the universal joints are properly aligned and secured. The flange head design of the screw provides a larger surface area for distribution of clamping force, which is vital for maintaining the integrity of the drive system under varying loads and torque conditions.

Water Pump Assembly

Within the water pump assembly, the 5401384 Hexagon Flange Head Cap Screw plays a significant role in attaching the pump housing to the engine block. This secure attachment is necessary to prevent leaks and ensure that the coolant circulates efficiently through the engine. The screw’s design allows for easy tightening and removal, facilitating maintenance and replacement of the water pump when necessary. Additionally, the hexagonal flange head provides a stable platform for tools, reducing the risk of stripping the screw head during installation or removal.

Mounting Kit Applications

The 5401384 Hexagon Flange Head Cap Screw is also a key component in various mounting kits used throughout the engine system. It is utilized to secure engine mounts, transmission mounts, and other critical attachments that hold the engine and related components in place within the vehicle’s chassis. The robust design of the screw ensures that these mounts remain firmly in position, even under the dynamic stresses encountered during vehicle operation. This stability is essential for maintaining proper alignment and performance of the engine and drivetrain.

Conclusion

The 5401384 Hexagon Flange Head Cap Screw is a critical component in the maintenance and assembly of commercial trucks and Cummins engines. Its robust design, ease of installation, and resistance to vibration make it an ideal fastening solution for various applications. Proper installation and maintenance practices are important to ensure the longevity and reliability of this part, contributing to the overall performance and safety of commercial vehicles and engines.