3093929
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #3093929, is a specialized fastening component manufactured by Cummins. This screw is integral to the assembly and maintenance of commercial trucks, providing a secure and reliable fastening solution. Cummins, a renowned name in the commercial truck industry, is known for its commitment to quality and innovation in manufacturing truck components ¹.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt characterized by its hexagonal head and flange beneath the head. The hexagonal head allows for efficient torque application using a wrench or socket, while the flange provides additional surface area to distribute the load and prevent the screw from sinking into the material. Within a fastening system, this part plays a role by securely joining components together, ensuring structural integrity and stability ².

Purpose and Role in Truck Operation

The Hexagon Flange Head Cap Screw (Part #3093929) is utilized in various applications within commercial trucks. It is commonly employed in areas where a high level of security and resistance to vibration is required. This includes fastening engine components, chassis parts, and other critical assemblies. The screw’s design ensures that components remain securely fastened under dynamic conditions, contributing to the overall reliability and safety of the truck ³.

Key Features

The 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, reducing the risk of cam-out and ensuring consistent torque application. The flange beneath the head provides additional bearing surface, which helps distribute the load and prevent damage to the fastened material. Additionally, the screw is typically made from high-strength materials, offering excellent resistance to corrosion and wear, which is vital for long-term performance in demanding truck environments ⁴.

Benefits

Utilizing the Hexagon Flange Head Cap Screw in truck assemblies offers several benefits. The screw’s design enhances security by providing a robust fastening solution that resists loosening due to vibration. This is particularly important in commercial trucks, where components are subjected to constant movement and stress. Additionally, the ease of installation and removal, facilitated by the hexagonal head, allows for efficient maintenance and repair processes. The flange also contributes to the screw’s ability to withstand high loads without sinking into the material, ensuring a stable and secure connection.

Installation Guidelines

Proper installation of the Hexagon Flange Head Cap Screw is crucial for optimal performance and longevity. To install the screw, first, ensure that the mating surfaces are clean and free of debris. Use a wrench or socket that fits the hexagonal head to apply torque gradually and evenly. It is important to follow the specified torque settings provided by the manufacturer to avoid over-tightening, which can lead to damage, or under-tightening, which can compromise the fastening integrity. After installation, periodically check the screw to ensure it remains securely fastened, especially in high-vibration areas.

Troubleshooting and Maintenance

Common issues associated with Hexagon Flange Head Cap Screws include loosening due to vibration, corrosion, and wear. To troubleshoot these issues, regularly inspect the screws for signs of loosening or damage. If a screw appears loose, re-tighten it to the specified torque setting. In cases of corrosion, consider replacing the screw to prevent further degradation. Regular maintenance, including cleaning and lubrication of the screw and surrounding components, can help prolong the lifespan of the screw and ensure reliable operation.

Manufacturer Overview - Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history spanning over a century, Cummins has established a strong reputation for quality, reliability, and customer satisfaction in the commercial truck industry. The company’s product range includes a variety of components and systems designed to enhance the performance, efficiency, and durability of commercial trucks. Cummins’ commitment to innovation and excellence is evident in its continuous investment in research and development, ensuring that its products meet the evolving needs of the industry.

Hexagon Flange Head Cap Screw (Part 3093929) in Cummins Engines

The Hexagon Flange Head Cap Screw, part number 3093929, manufactured by Cummins, is a critical component in various Cummins engine models. This part is designed to provide secure fastening in applications where a robust and reliable connection is essential. Below is a detailed look at how this screw fits into the specified Cummins engines.

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines utilize the 3093929 screw in several critical applications. These engines, known for their durability and performance, often require precise and strong fastening solutions. The Hexagon Flange Head Cap Screw is used in areas where it needs to withstand significant mechanical stress and maintain a tight seal, ensuring the integrity of the engine components.

ISB CM850, ISM CM570/870, and ISM CM876 Engines

In the ISB CM850, ISM CM570/870, and ISM CM876 engines, the 3093929 screw plays a pivotal role in securing various parts of the engine assembly. These engines are designed for heavy-duty applications, and the screw’s robust construction ensures that it can handle the demanding conditions these engines operate under. The flange head design provides a larger surface area for the wrench, making it easier to apply the necessary torque without rounding off the screw head.

L9.5 L117 Engine

The L9.5 L117 engine also incorporates the 3093929 screw in its assembly. This engine, known for its reliability and efficiency, uses the screw in areas that require a high level of precision and strength. The flange head design of the screw allows for better torque application, which is crucial for maintaining the structural integrity of the engine components.

QST30 CM552 Engine

In the QST30 CM552 engine, the 3093929 screw is used in various fastening applications. This engine is designed for demanding industrial applications, and the screw’s ability to provide a secure and reliable connection is essential. The flange head design ensures that the screw can be easily and accurately tightened, which is critical for the performance and longevity of the engine.

Each of these engines benefits from the use of the 3093929 Hexagon Flange Head Cap Screw, which provides the necessary strength, durability, and ease of use required in high-performance engine applications.

Hexagon Flange Head Cap Screw in Engine Systems

The part 3093929 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems. Its robust design ensures reliable fastening, which is essential for the integrity and performance of the engine.

Converter and Catalytic Components

In the context of catalytic converters, the Hexagon Flange Head Cap Screw is used to secure the converter to the exhaust system. This ensures that the converter remains firmly in place, allowing for efficient emission control. The screw’s flange head provides additional surface area for a tighter seal, minimizing the risk of exhaust leaks.

Coupling and Fuel System Integration

For fuel pump couplings, this screw plays a significant role in maintaining the connection between the fuel pump and the engine. It ensures that the fuel delivery system remains intact, providing consistent fuel flow to the engine. The screw’s design helps in withstanding the vibrations and pressures inherent in the fuel system.

Cylinder Block and Cover Assembly

When it comes to cylinder blocks and covers, the Hexagon Flange Head Cap Screw is employed to secure these critical components. It ensures that the cylinder block remains stable and aligned, which is vital for the engine’s overall performance. The screw’s flange head offers enhanced torque application, reducing the likelihood of loosening over time.

Fuel Pump and Wiring Harnesses

In fuel pump assemblies, this screw is used to fasten the pump to its mounting bracket. This secure attachment is essential for the pump’s operation, ensuring it can deliver fuel under varying engine loads. Additionally, in wiring harnesses, particularly those related to engine control (Eng Cnt Wiring), the screw helps in securing harnesses to the engine bay, protecting them from movement and potential damage.

Plumbing and Fuel Lines

For plumbing and fuel lines, the Hexagon Flange Head Cap Screw is utilized to secure fittings and connections. This is particularly important in high-pressure fuel systems where secure fastening prevents leaks and ensures safe operation. The screw’s design allows for easy tightening and removal, facilitating maintenance and repairs.

Shield and Heat Management

In heat shield applications, this screw is used to attach shields to the engine bay. This helps in managing heat distribution and protecting nearby components from excessive temperatures. The screw’s durability ensures that the shields remain in place, even under the harsh conditions of the engine environment.

Conclusion

Overall, the part 3093929 Hexagon Flange Head Cap Screw is a versatile fastener that enhances the reliability and performance of various engine components. Its application across different systems underscores its importance in maintaining the structural and functional integrity of the engine.