3929865
Hexagon Flange Head Cap Screw
Cummins®

The Cummins Hexagon Flange Head Cap Screw, part number 3929865, is a specialized fastener designed for heavy-duty truck applications. This screw is integral to the assembly and maintenance of various truck components, ensuring secure and reliable connections. Cummins, a renowned name in diesel engine manufacturing, produces this screw with a focus on durability and performance, making it a preferred choice in the automotive industry.

Basic Concepts

A Hexagon Flange Head Cap Screw is characterized by its hexagonal head and flanged design. 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. This design is particularly beneficial in mechanical systems where secure fastening and resistance to loosening are paramount ¹.

Purpose and Role in Truck Operation

The 3929865 Hexagon Flange Head Cap Screw plays a significant role in the operation and maintenance of heavy-duty trucks. It is used in various components, including engine assemblies, chassis parts, and other critical systems. By providing a secure and stable connection, this screw helps maintain the integrity of these components under demanding conditions. Its applications range from fastening engine covers to securing chassis components, ensuring that all parts remain firmly in place during operation ².

Key Features

The 3929865 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal head design allows for easy and precise torque application, while the flange provides additional stability and load distribution. The screw is crafted from high-quality materials, ensuring resistance to corrosion and wear. These features make it well-suited for the rigorous environments encountered in heavy-duty truck applications ³.

Benefits

Using the 3929865 Hexagon Flange Head Cap Screw in truck maintenance and assembly offers several benefits. The screw’s design allows for improved torque application, ensuring that connections are secure and reliable. Its resistance to loosening helps maintain the integrity of fastened components over time. Additionally, the flanged design enhances load distribution, reducing the risk of damage to the material being fastened. These benefits contribute to the overall reliability and performance of heavy-duty trucks.

Installation and Usage

Proper installation of the 3929865 Hexagon Flange Head Cap Screw is crucial for optimal performance and longevity. It is recommended to use the appropriate torque specifications provided by the manufacturer to ensure secure fastening without over-tightening. Best practices include cleaning the installation surface to remove any debris or contaminants that could affect the screw’s performance. Using a torque wrench can help achieve the precise torque required for the application, ensuring a secure and lasting connection.

Troubleshooting and Maintenance

Common issues associated with Hexagon Flange Head Cap Screws include loosening over time and corrosion. To address these issues, regular inspections should be conducted to ensure that all screws remain tight and free from corrosion. If loosening is detected, re-torquing the screw to the manufacturer’s specifications can resolve the issue. Applying a corrosion-resistant coating or using screws made from corrosion-resistant materials can help prevent future problems. Maintenance tips include keeping the installation area clean and dry to prolong the lifespan of the screw and ensure continued reliable performance.

Manufacturer - Cummins

Cummins is a leading manufacturer in the diesel engine industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance engines, Cummins has established itself as a trusted name in the automotive sector. The company’s expertise in engine manufacturing extends to the production of critical components like the 3929865 Hexagon Flange Head Cap Screw, ensuring that each part meets the demanding requirements of heavy-duty truck applications. Cummins’ dedication to quality and innovation underscores its reputation in the industry.

Cummins Hexagon Flange Head Cap Screw 3929865 in Engine Applications

The Cummins Hexagon Flange Head Cap Screw, part number 3929865, is a critical component in various engine applications. This screw is designed to secure different parts within the engine, ensuring that they remain tightly fastened and properly aligned. Its robust construction and precise fit are essential for maintaining engine integrity and performance.

Engine Group: 6B5.9

In the 6B5.9 engine series, the 3929865 screw is utilized in several key areas. It is often found securing components such as valve covers, oil pans, and other critical engine housings. The flange head design provides a larger bearing surface, which helps distribute the clamping force more evenly, reducing the risk of damage to the fastened parts.

The screw’s hex socket allows for easy and efficient tightening using a wrench or socket, ensuring that the connection is secure and reliable. This is particularly important in high-stress environments where vibrations and thermal expansion can otherwise cause loosening.

Versatility and Reliability

The 3929865 screw’s versatility extends to its use in various engine configurations within the 6B5.9 series. Its compatibility with different engine parts makes it a staple in engine assembly and maintenance. The screw’s material and finish are chosen to withstand the harsh conditions within the engine, including high temperatures and exposure to engine fluids.

By using the 3929865 screw, engine manufacturers and technicians can ensure that critical components remain securely fastened, contributing to the overall reliability and longevity of the engine.

Understanding the Role of Part 3929865 Hexagon Flange Head Cap Screw in Engine Systems

In the intricate world of engine systems, the part 3929865 Hexagon Flange Head Cap Screw plays a significant role in ensuring the stability and efficiency of various components. This screw is instrumental in the assembly and functionality of several key parts, including the control systems, gear shift mechanisms, kits, throttle position sensors (TPS), and throttle control brackets.

Control Systems

Within the control systems of an engine, the Hexagon Flange Head Cap Screw is used to secure various control modules and sensors. These modules are responsible for monitoring and regulating engine performance, fuel efficiency, and emissions. The screw ensures that these components remain firmly in place, allowing for accurate data collection and precise control over engine functions.

Gear Shift Mechanisms

In gear shift mechanisms, the Hexagon Flange Head Cap Screw is essential for maintaining the structural integrity of the shift linkage and selector components. It secures the shift linkage to the transmission, ensuring smooth and reliable gear changes. This is particularly important in manual transmissions, where precise alignment and secure fastening are necessary for optimal performance.

Kits

When it comes to engine kits, whether they are performance upgrades or repair kits, the Hexagon Flange Head Cap Screw is often used to assemble and secure various components within the kit. This includes mounting brackets, sensor housings, and other ancillary parts that are critical to the kit’s function. The screw’s design allows for easy installation and removal, facilitating both initial setup and future maintenance.

Throttle Position Sensors (TPS)

The TPS is a vital component in modern engine management systems, providing real-time data on throttle position to the engine control unit (ECU). The Hexagon Flange Head Cap Screw is used to mount the TPS securely to the throttle body or intake manifold. This ensures that the sensor remains in the correct position, providing accurate readings that the ECU uses to adjust fuel delivery and ignition timing.

Throttle Control Brackets

Throttle control brackets are used to mount the throttle body to the intake manifold. The Hexagon Flange Head Cap Screw plays a key role in this application by providing a strong and reliable fastening solution. This ensures that the throttle body is held firmly in place, allowing for consistent airflow into the engine and stable throttle response.

Conclusion

In summary, the Cummins Hexagon Flange Head Cap Screw, part number 3929865, is a versatile and essential component in various engine systems. Its role in securing and maintaining the integrity of control systems, gear shift mechanisms, kits, TPS, and throttle control brackets underscores its importance in ensuring the overall performance and reliability of the engine.