3558922
Hexagon Head Cap Screw
Cummins®

Introduction

The Cummins 3558922 Hexagon Head Cap Screw is a specialized fastener designed for use in commercial trucks. Its purpose is to securely fasten various components within the truck’s structure, ensuring stability and reliability under demanding conditions. This screw is integral to maintaining the structural integrity of the vehicle, facilitating efficient operation and longevity.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of bolt characterized by its hexagonal head, which allows for easy tightening and loosening using a wrench or socket. These screws are widely used in mechanical assemblies to secure components together. They function by converting torque applied to the head into clamping force, which holds the fastened parts in place. The hexagonal shape of the head provides a firm grip, reducing the risk of slippage during installation or removal ¹.

Role of the 3558922 Hexagon Head Cap Screw in Truck Operation

The Cummins 3558922 Hexagon Head Cap Screw plays a significant role in the operation and maintenance of commercial trucks. It is utilized in various application areas, including the fastening of engine components, chassis parts, and other critical assemblies. By ensuring that these components remain securely attached, the screw contributes to the overall structural integrity of the truck. This is particularly important in commercial trucking, where vehicles are subjected to heavy loads and harsh operating conditions ².

Key Features

The Cummins 3558922 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal head design allows for efficient torque application, ensuring secure fastening. The screw is composed of high-quality materials, typically featuring a hardened steel construction that provides excellent strength and resistance to wear. The threading specifications are designed to offer optimal clamping force, while any unique attributes, such as a corrosion-resistant coating, further enhance its longevity in demanding environments ³.

Benefits

The Cummins 3558922 Hexagon Head Cap Screw offers numerous benefits that make it an ideal choice for commercial trucking applications. These include improved fastening strength, which ensures that components remain securely attached under heavy loads. The screw’s design also provides resistance to loosening, reducing the need for frequent re-tightening. Additionally, its ease of installation and removal simplifies maintenance procedures, while its durability ensures long-term performance in the harsh conditions typical of commercial trucking.

Troubleshooting and Maintenance

Common issues that may arise with Hexagon Head Cap Screws include corrosion, stripping, or loosening. To address these problems, regular inspection and maintenance are recommended. This may involve cleaning the screw and surrounding areas to prevent corrosion, using the appropriate tools to avoid stripping, and periodically checking torque levels to ensure the screw remains securely fastened. Proper maintenance practices help to ensure optimal performance and longevity of the screw.

Installation Tips

When installing the Cummins 3558922 Hexagon Head Cap Screw, it is important to follow best practices to ensure a secure and damage-free fastening. This includes adhering to the specified torque levels to achieve the correct clamping force without over-tightening. Using the appropriate tools, such as a torque wrench, helps to apply the correct amount of force. Additionally, techniques such as lubricating the threads can facilitate easier installation and reduce the risk of damage to the screw or the components being fastened.

Cummins Overview

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 in the commercial trucking industry for its commitment to quality and innovation. The company’s extensive product range includes a variety of components and systems designed to enhance the performance, efficiency, and reliability of commercial vehicles. Cummins’ dedication to excellence is evident in its continued investment in research and development, ensuring that its products meet the evolving needs of the industry.

Compatibility with Cummins Engines

The Cummins part number 3558922, a Hexagon Head Cap Screw, is designed to fit a variety of Cummins engines, ensuring secure fastening in various applications. This screw is engineered to meet the stringent requirements of Cummins’ diverse engine lineup, providing reliability and durability across different engine models.

Small Bore Engines

• 4B3.9
• 6B5.9
• B5.9 G
• QSB5.9 44 CM550

These smaller engines often require precise and reliable fastening solutions, and the 3558922 screw is a perfect fit for these applications.

Medium Bore Engines

• 6C8.3
• C8.3 G
• QSC8.3 CM554

Medium bore engines benefit from the robust design of the 3558922 screw, ensuring secure connections in critical areas.

High Horsepower Engines

• ISB CM550
• ISC CM554
• ISL CM554
• ISM CM570
• ISX CM570
• QSM11 CM570

High horsepower engines demand components that can withstand significant stress and vibrations. The 3558922 screw is designed to meet these demands, providing a reliable fastening solution for these powerful engines.

Specialized Engines

• C GAS PLUS CM556
• L10 CELECT
• L10 GAS
• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL
• N14 CELECT PLUS
• N14 MECHANICAL
• NH/NT 855

Specialized engines often have unique requirements, and the 3558922 screw is compatible with these models, ensuring that each engine can maintain its integrity and performance.

By providing a comprehensive fitment for a wide range of Cummins engines, the 3558922 Hexagon Head Cap Screw ensures that technicians and mechanics can rely on a single part for multiple applications, simplifying maintenance and repair processes.

Role of Part 3558922 Hexagon Head Cap Screw in Engine Systems

The part 3558922 Hexagon Head Cap Screw is integral to the secure assembly and operation of various engine components. In the context of an air compressor, this screw ensures the robust attachment of the compressor’s housing to its base, facilitating efficient compression cycles and minimizing vibrations.

Within an air compressor kit, the screw plays a significant role in maintaining the structural integrity of the assembly, particularly where multiple components interface. It secures critical parts such as the QE Unloader Serv and QE Unloader Ser assemblies, ensuring that these components function seamlessly during load and unload operations.

In the QE Head Assembly kits—whether QE/B, QE/C, QE/M, or QE/STD—the Hexagon Head Cap Screw is employed to fasten the head to the main body. This secure attachment is vital for maintaining the precise alignment and operational efficiency of the head assembly, which is responsible for the compression and release of air within the system.

Additionally, in a compressor conversion kit, the screw is used to attach conversion components to the existing compressor framework, ensuring that the modifications are stable and do not compromise the overall performance of the compressor.

Overall, the 3558922 Hexagon Head Cap Screw is a fundamental fastener that contributes to the reliability and performance of these engine systems by ensuring that all critical components are securely and precisely assembled.

Conclusion

The Cummins 3558922 Hexagon Head Cap Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its robust design, compatibility with a wide range of engine models, and key features make it an essential fastener for ensuring the structural integrity and performance of various engine systems. Proper installation, maintenance, and understanding of its role in engine components are vital for maximizing its benefits and ensuring the longevity and reliability of commercial vehicles.