4974204
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4974204, is a specialized fastener produced by Cummins Inc. This screw is integral to the assembly and maintenance of commercial trucks, providing secure fastening solutions across various components. Cummins, a renowned manufacturer in the commercial truck industry, is known for its commitment to quality and innovation, ensuring that its components meet the rigorous demands of heavy-duty applications ¹.

Basic Concepts

The 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 load and prevent the screw from sinking into the material. Commonly made from high-strength materials such as alloy steel, these screws are designed to withstand significant stress and provide reliable fastening in demanding environments. The screw functions by threading into a pre-drilled hole, creating a secure connection between components ².

Role in Truck Operation

In the context of a commercial truck, the 4974204 Hexagon Flange Head Cap Screw plays a vital role in ensuring the integrity of various assemblies. It is commonly used in engine components, chassis structures, and other critical areas where secure fastening is required. For instance, it may be employed to fasten engine covers, secure brackets, or join structural elements within the chassis. Its robust design ensures that these connections remain stable under the dynamic conditions experienced by commercial trucks ³.

Key Features

The 4974204 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and usability. The hexagonal head design allows for straightforward installation and removal using common tools, reducing the risk of damage to the screw or surrounding components. The flange provides additional bearing surface, which helps distribute the load and prevents the screw from pulling through the material. Additionally, the screw may feature unique attributes such as a corrosion-resistant coating or specialized threading to further improve its functionality in harsh environments.

Benefits

Using the 4974204 Hexagon Flange Head Cap Screw offers several advantages. Its design contributes to improved fastening security, ensuring that components remain firmly attached even under vibration and stress. The flange characteristic enhances resistance to loosening, which is particularly important in applications where frequent movement or dynamic loads are present. Furthermore, the ease of installation and removal simplifies maintenance procedures, allowing for quick and efficient repairs or adjustments.

Troubleshooting and Maintenance

Common issues associated with Hexagon Flange Head Cap Screws include loosening due to vibration, corrosion, and damage from over-tightening. To troubleshoot these problems, it is important to regularly inspect screws for signs of wear or corrosion. If loosening is detected, re-tightening the screw or applying a thread-locking compound can help maintain secure fastening. In cases of corrosion, replacing the screw may be necessary to ensure continued reliability. Regular maintenance, including cleaning and lubrication of threads, can extend the lifespan of these fasteners and ensure consistent performance.

About Cummins

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 and innovation in the commercial truck industry. The company’s extensive product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of heavy-duty applications. Cummins’ commitment to excellence is reflected in its rigorous manufacturing processes and continuous investment in research and development, ensuring that its components deliver reliable performance and durability.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw 4974204

The Cummins part number 4974204, a Hexagon Flange Head Cap Screw, is designed to fit seamlessly within a variety of Cummins engine models. This screw is engineered to provide robust fastening solutions, ensuring secure connections in critical engine components. Below is a detailed breakdown of the engine compatibility for this specific part:

D-Series Engines

• D4.0 CM2620 D103B
• F3.8 CM2350 F120B
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B

These D-Series engines benefit from the reliable fastening capabilities of the 4974204 screw, which is crucial for maintaining the integrity of engine mounts and other structural components.

ISF-Series Engines

• ISF3.8 CM2220 AN
• ISF3.8 CM2220 F103
• ISF3.8 CM2350 F109
• ISF4.5 CM2220 F123

The ISF-Series engines also utilize the 4974204 screw for its precision and strength. This screw is particularly important in applications where high torque and durability are required, such as in the mounting of engine blocks and other heavy-duty components.

X-Series Engines

• X12 CM2670 X121B

The X12 CM2670 X121B engine incorporates the 4974204 screw to ensure that all critical connections are securely fastened. This engine, known for its power and efficiency, relies on the screw’s ability to withstand significant stress and provide long-lasting performance.

Each of these engines, regardless of their specific configurations and applications, leverages the 4974204 Hexagon Flange Head Cap Screw for its exceptional quality and reliability. This part is integral to maintaining the structural integrity and operational efficiency of the engines it is used in.

Role of Part 4974204 Hexagon Flange Head Cap Screw in Engine Systems

The part 4974204 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems, ensuring their stability and proper function.

In the compressor assembly, this screw is used to fasten the compressor housing to its mounting bracket. This secure attachment is essential for maintaining the alignment and operational integrity of the compressor.

Within the air connection system, the screw plays a part in attaching the air intake manifold to the engine block. This connection is vital for directing the airflow efficiently into the combustion chambers.

For the air intake system, the screw is employed to secure the air filter housing, ensuring a tight seal that prevents unfiltered air from entering the engine.

In conjunction with the gauge, specifically the oil level gauge, the screw is utilized to mount the gauge to the engine or its housing. Accurate oil level readings are dependent on the secure and stable placement of the gauge.

The harness and electronic control module (ECM) wiring often require fastening to various points within the engine bay. The Hexagon Flange Head Cap Screw is ideal for these applications due to its flange, which provides a larger surface area for distribution of clamping force, reducing the risk of damage to the wiring or harness.

Lastly, in the context of the oil level gauge, the screw ensures that the gauge is firmly attached, allowing for precise monitoring of the oil level within the engine. This is important for maintaining engine health and performance.

Overall, the part 4974204 Hexagon Flange Head Cap Screw is a versatile fastener that contributes to the secure assembly and reliable operation of various engine components.

Conclusion

The 4974204 Hexagon Flange Head Cap Screw is a critical component in the assembly and maintenance of commercial trucks, particularly within Cummins engines. Its robust design, ease of use, and compatibility with various engine models make it an indispensable part for ensuring the structural integrity and operational efficiency of engine systems. Regular maintenance and proper use of this screw are essential for the longevity and performance of commercial truck engines.