4990922
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw is a fundamental component in the realm of commercial trucks, providing secure fastening solutions that are vital for the integrity and performance of various truck assemblies. Manufactured by Cummins, a renowned name in the commercial truck industry, the Hexagon Head Cap Screw part number 4990922 is designed to meet the rigorous demands of heavy-duty applications. This part plays a significant role in ensuring the reliable operation and maintenance of commercial trucks, offering a blend of strength, durability, and ease of use.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The design of the cap screw includes a threaded shaft that engages with internal threads in the material being fastened, providing a strong and secure connection. Cap screws are commonly used in applications where high tensile strength and resistance to loosening are required. They are often employed in structural and mechanical assemblies, including those found in commercial trucks.

Role of the 4990922 Hexagon Head Cap Screw in Truck Operation

This Cummins part is integral to the operation and maintenance of commercial trucks. It is utilized in various truck assemblies where secure fastening is crucial. Common applications include engine components, transmission systems, and chassis assemblies. The screw ensures that critical parts remain firmly in place, contributing to the overall stability and performance of the truck.

Key Features of the 4990922 Hexagon Head Cap Screw

The 4990922 boasts several key features that enhance its functionality and durability. It is composed of high-strength materials, typically alloy steel, which provides excellent tensile strength and resistance to wear. The screw features a coarse thread type, which allows for quick and easy installation while maintaining a strong grip. The hexagonal head design facilitates straightforward tightening and loosening, reducing the risk of damage to the screw or surrounding components. These features collectively contribute to the screw’s reliability in heavy-duty applications.

Benefits of Using the 4990922 Hexagon Head Cap Screw

Utilizing this Cummins part offers several benefits. Its high tensile strength ensures that it can withstand significant loads without failing, making it suitable for critical applications in commercial trucks. The material composition provides corrosion resistance, enhancing the screw’s longevity in various operating environments. Additionally, the hexagonal head design allows for easy installation and removal, reducing maintenance time and effort. Compared to other fasteners, the 4990922 offers a superior combination of strength, durability, and ease of use.

Installation and Usage Guidelines

Proper installation of the 4990922 is crucial for ensuring its effectiveness and longevity. To install the screw, first, ensure that the mating threads are clean and free of debris. Use a wrench or socket to tighten the screw gradually, applying even pressure to avoid cross-threading. Recommended torque settings should be followed to achieve the correct tension without over-tightening, which could damage the screw or the surrounding material. The appropriate tools, such as a torque wrench, should be used to ensure accurate installation.

Troubleshooting Common Issues

Common issues that may arise with the 4990922 include loosening due to vibration or corrosion. To address loosening, inspect the screw regularly and re-tighten as necessary using the recommended torque settings. If corrosion is detected, clean the affected area thoroughly and apply a corrosion-resistant coating to prevent further degradation. In cases where the screw is damaged, replacement with a new 4990922 is recommended to maintain the integrity of the assembly.

Maintenance Tips

Regular maintenance of the 4990922 is essential for ensuring its longevity and performance. Inspect the screw periodically for signs of wear, corrosion, or loosening. Re-tighten the screw as needed to maintain the correct tension. Additionally, protect the screw from environmental factors by applying a suitable coating or sealant. Following these maintenance tips will help to prolong the life of the screw and ensure reliable operation in commercial truck applications.

About 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 itself as a trusted name in the commercial truck industry. The company is committed to quality and innovation, continually advancing its product offerings to meet the evolving needs of its customers. Cummins’ dedication to excellence is evident in its comprehensive range of truck components, including the 4990922, which embodies the company’s standards for reliability and performance.

Hexagon Head Cap Screw 4990922 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 4990922 is a critical component in several Cummins engine models. This part is integral to the assembly and maintenance of the engines, ensuring structural integrity and proper function.

QSB5.9 CM850 and QSC8.3 CM850(CM2850)

In the QSB5.9 CM850 and QSC8.3 CM850(CM2850) engines, the 4990922 screw is utilized in various applications. Its primary role is to secure different parts of the engine together, maintaining alignment and stability during operation. This screw is often found in areas where it needs to withstand significant stress and vibration, ensuring that the engine components remain tightly fastened.

QSB6.7 M CM2250

For the QSB6.7 M CM2250 engine, the 4990922 screw is similarly essential. It is used in critical assemblies where precise fastening is required. This includes securing engine blocks, cylinder heads, and other major components. The screw’s design allows for easy installation and removal, which is crucial during maintenance and repair procedures.

QSK95 CM2350 K113

In the QSK95 CM2350 K113 engine, the 4990922 screw plays a vital role in the engine’s structural framework. It is used in various locations to ensure that all parts are securely fastened. This is particularly important in heavy-duty applications where the engine is subjected to high loads and stresses. The screw’s durability and strength make it ideal for these demanding environments.

Each of these engines benefits from the use of the 4990922 screw, ensuring that they operate efficiently and reliably. The screw’s design and material properties make it a reliable choice for securing critical engine components across different engine models.

Role of Part 4990922 Hexagon Head Cap Screw in Various Engine Systems

Adapter Systems

In adapter systems, the 4990922 Hexagon Head Cap Screw is utilized to secure components that interface between different parts of the engine or between the engine and external systems. Its role is to provide a stable and reliable connection, ensuring that the adapter remains firmly in place under operational stresses. This is particularly important in high-torque environments where vibrations and rotational forces are significant.

Rear Drive Systems

Within rear drive systems, the 4990922 Hexagon Head Cap Screw is essential for fastening components such as driveshafts, differential housings, and yokes. It ensures that these parts remain securely attached, allowing for efficient power transmission from the engine to the wheels. The screw’s design helps in withstanding the considerable forces and torques generated during vehicle operation, maintaining the integrity of the rear drive system.

System Integration

When integrating various subsystems within an engine, the 4990922 Hexagon Head Cap Screw plays a key role in assembling and securing components such as sensors, actuators, and control modules. It provides the necessary tension and stability required for these components to function correctly, ensuring that electrical connections and mechanical linkages are maintained under varying operational conditions.

Marine Propulsion Systems

In marine propulsion systems, the 4990922 Hexagon Head Cap Screw is used to fasten critical components like propeller shafts, gearboxes, and engine mounts. Its corrosion-resistant properties are particularly beneficial in the harsh marine environment, where exposure to saltwater and moisture can lead to rapid degradation of fasteners. The screw ensures that all components remain securely attached, contributing to the overall reliability and performance of the propulsion system.

Conclusion

The 4990922 Hexagon Head Cap Screw by Cummins is a vital component in the operation and maintenance of commercial trucks and various engine systems. Its robust design, high tensile strength, and ease of use make it an indispensable part in ensuring the reliability and performance of heavy-duty applications. Proper installation, regular maintenance, and timely replacement are essential to maximize the benefits of this Cummins part.

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