3929864
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #3929864, is a component manufactured by Cummins, a renowned name in the commercial truck industry. This screw is integral to the maintenance and operation of commercial trucks, providing a reliable fastening solution that ensures the integrity of various truck components. Cummins, with its long-standing reputation for quality and innovation, produces this screw to meet the demanding requirements of heavy-duty applications ¹.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange that sits against the surface being fastened. This design allows for efficient torque application and provides a larger bearing surface, which helps distribute the load more evenly. Within mechanical systems, these screws are used to secure components together, ensuring stability and durability under various operational conditions ².

Purpose and Role in Truck Operation

This Cummins part plays a significant role in the operation and maintenance of commercial trucks. It is commonly used in areas where secure fastening is required, such as in the attachment of engine components, chassis parts, and other critical assemblies. Its design ensures that components remain firmly in place, even under the vibrations and stresses encountered during truck operation ³.

Key Features

The 3929864 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal flange head design allows for easy application of torque using standard tools, ensuring secure fastening. The screw is typically made from high-strength materials, such as alloy steel, which provides excellent resistance to wear and corrosion. Additionally, the flange head offers a larger contact area, which helps prevent the screw from pulling through the material it is fastening ⁴.

Benefits

Using the 3929864 Hexagon Flange Head Cap Screw offers several benefits. The design of the screw provides improved fastening security, making it less likely to loosen over time due to vibrations. The flange head also facilitates easier installation and removal, reducing the time and effort required for maintenance tasks. Furthermore, the high-strength material composition ensures longevity and reliability in demanding applications ¹.

Installation and Usage

Proper installation of the 3929864 Hexagon Flange Head Cap Screw is crucial for optimal performance. It is important to follow torque specifications provided by the manufacturer to ensure the screw is tightened to the correct level, avoiding over-tightening or under-tightening. Using the appropriate tools and techniques will help achieve a secure and lasting fastening solution. Best practices include cleaning the fastening area to remove any debris or contaminants that could affect the screw’s performance ².

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws may include loosening due to vibrations or corrosion. Regular inspection and maintenance can help identify and address these issues promptly. If a screw appears loose, it should be re-tightened to the specified torque. In cases of corrosion, the affected area should be cleaned, and the screw may need to be replaced to ensure continued reliable performance. Proper lubrication can also help prevent corrosion and ease of future removal ³.

Safety Considerations

When working with Hexagon Flange Head Cap Screws, it is important to observe several safety practices. Proper handling and storage of the screws will help maintain their integrity and performance. Using the correct tools and following torque specifications will prevent damage to both the screw and the components being fastened. Additionally, wearing appropriate personal protective equipment (PPE) will help ensure user safety during installation and maintenance tasks ⁴.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a strong reputation for quality, reliability, and innovation in the commercial truck industry. The company’s commitment to excellence is evident in its wide range of products, which are designed to meet the rigorous demands of heavy-duty applications. Cummins continues to lead the way in developing advanced technologies that enhance the performance and efficiency of commercial vehicles ¹.

Hexagon Flange Head Cap Screw (Part 3929864) in Cummins Engines

The Hexagon Flange Head Cap Screw, part number 3929864, is a critical component in the assembly and maintenance of several Cummins engines. This part is designed to provide secure fastening in various engine configurations, ensuring that components remain tightly secured under operational stresses ².

Application in Cummins Engines

6B5.9 Engine

In the 6B5.9 engine, the 3929864 screw is utilized in several key areas where secure fastening is essential. Its flange head design allows for a larger bearing surface, which is crucial for maintaining the integrity of the engine’s components during operation ³.

ISB6.7 G CM2180 B118 Engine

For the ISB6.7 G CM2180 B118 engine, the 3929864 screw is employed in both the cylinder head and block assemblies. The flange head provides a stable mounting point, ensuring that the components remain aligned and do not shift under the high pressures and temperatures typical of diesel engines ⁴.

Grouping of Engines

When considering the application of the 3929864 screw across the 6B5.9 and ISB6.7 G CM2180 B118 engines, it is evident that this part plays a vital role in maintaining the structural integrity of these engines. The screw’s design ensures that it can withstand the operational stresses and provide a reliable fastening solution in both older and newer engine models ¹.

Hexagon Flange Head Cap Screw in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 3929864, is a versatile fastener utilized in various engine systems to ensure secure and reliable connections. Its design allows for efficient torque transfer and resistance to loosening, making it suitable for high-stress applications ².

Lever Assembly Integration

In lever assemblies, the Hexagon Flange Head Cap Screw is employed to attach the lever to its mounting bracket. This connection is vital for maintaining the structural integrity and operational efficiency of the lever, ensuring smooth and precise movements necessary for engine control ³.

Throttle Mechanism

Within the throttle mechanism, this screw plays a significant role in securing the throttle plate to the throttle body. It ensures that the throttle plate remains firmly in place, allowing for accurate modulation of air intake, which is essential for engine performance and fuel efficiency ⁴.

Throttle Bracket and Control Bracket

For the throttle bracket and throttle control bracket, the Hexagon Flange Head Cap Screw provides a robust fastening solution. It secures these components to the engine housing, ensuring that the throttle system operates without undue play or misalignment, which could otherwise lead to inconsistent engine performance ¹.

Throttle Kit Components

In a comprehensive throttle kit, this screw is used to assemble various components, such as the throttle body, linkage, and actuator. Its application ensures that all parts within the kit are held together securely, facilitating smooth and reliable throttle operation ².

Turbocharger Applications

In turbocharger systems, the Hexagon Flange Head Cap Screw is utilized to fasten the turbocharger housing to the engine block or manifold. This secure attachment is essential for withstanding the high pressures and temperatures generated during operation, ensuring the turbocharger functions efficiently and reliably ³.

Conclusion

The 3929864 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 flange head, ensures efficient torque application and secure fastening, making it suitable for high-stress applications. The screw’s high-strength material composition and larger bearing surface contribute to its durability and reliability. Proper installation, regular maintenance, and adherence to safety practices are essential for maximizing the performance and longevity of this part in demanding applications ⁴.