3426222
Hexagon Head Cap Screw
Cummins®

Introduction

The Cummins 3426222 Hexagon Head Cap Screw is a specialized fastener designed for heavy-duty truck applications. It ensures secure and reliable fastening in various truck components, contributing to the vehicle’s integrity and performance. This part is crucial for withstanding the demanding conditions of heavy-duty truck operations, enhancing the truck’s durability and efficiency ¹.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is characterized by its hexagonal head, facilitating easy tightening and loosening with a wrench or socket. The screw’s threaded shaft engages with the internal threads of a mating part, creating a secure connection. These screws are used in fastening applications to join components, providing structural integrity and resistance to vibration and movement ².

Purpose and Role in Truck Operation

The Cummins 3426222 Hexagon Head Cap Screw is vital for the operation and maintenance of heavy-duty trucks. It is used in components such as engine mounts, transmission housings, and chassis assemblies. The screw ensures these components remain securely fastened, which is essential for the truck’s safe and efficient operation. It maintains alignment and structural integrity under load in both static and dynamic parts of the truck ³.

Key Features

This Cummins part features a robust material composition, typically high-strength steel, providing excellent tensile strength and durability. It has a coarse thread type for quick and secure fastening. The hexagonal head design allows for easy installation and removal using standard tools. These features contribute to the screw’s performance and longevity in heavy-duty applications.

Benefits

Using the Cummins 3426222 Hexagon Head Cap Screw offers several benefits. Its enhanced strength ensures it can withstand high loads and stresses in heavy-duty truck operations. The screw’s corrosion resistance properties protect it from environmental factors, prolonging its service life. The hexagonal head design allows for efficient and reliable fastening, reducing downtime during maintenance procedures.

Installation and Usage Guidelines

Proper installation of the Cummins 3426222 Hexagon Head Cap Screw involves several steps. Ensure that the mating threads are clean and free of debris. Use a torque wrench to tighten the screw to the specified torque value, ensuring a secure fit without over-tightening. Follow the manufacturer’s guidelines for torque specifications to avoid damaging the screw or the mating component. Using a thread locker can enhance the security of the fastening, especially in applications where vibration is a concern.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration, corrosion, and damage from over-tightening. To troubleshoot these issues, regularly inspect the screws for signs of wear or corrosion. If a screw appears loose, re-tighten it to the specified torque value. In cases of corrosion, clean the affected area and apply a corrosion-resistant coating. Regular maintenance, including periodic checks and re-torquing, can prolong the lifespan of the screw and ensure optimal performance.

Safety Considerations

When working with Hexagon Head Cap Screws, observe several safety considerations. Use the correct tools to avoid damaging the screw or the wrench. Store screws in a dry, organized environment to prevent corrosion and misplacement. During usage, ensure that all safety protocols are followed, including wearing appropriate personal protective equipment (PPE) and adhering to industry standards for fastening applications.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and aftermarket parts. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the automotive and heavy-duty truck industry. The company’s commitment to manufacturing high-quality components is evident in its extensive range of products, which are designed to meet the rigorous demands of heavy-duty applications.

Cummins Hexagon Head Cap Screw 3426222 in Engine Applications

The Cummins Hexagon Head Cap Screw part number 3426222 is a critical component in several engine models, ensuring secure fastening and structural integrity. This screw is utilized in various engine applications, providing a reliable method to hold parts together under high stress and operational conditions.

QSV91-G4 CM558/CM700 V102

In the QSV91-G4 CM558/CM700 V102 engines, the Hexagon Head Cap Screw 3426222 is employed in several key areas. It is often used to secure engine covers, brackets, and other structural components that require a robust and durable fastening solution. The screw’s design allows for easy installation and removal, which is crucial during maintenance and repair operations.

QSV91G

Similarly, in the QSV91G engines, the Hexagon Head Cap Screw 3426222 plays a vital role in maintaining the integrity of the engine assembly. It is used to fasten various parts, ensuring that they remain securely in place under the demanding conditions of engine operation. The screw’s hex head provides a convenient grip for tools, facilitating efficient assembly and disassembly.

Grouping of Engines

When considering the QSV91-G4 CM558/CM700 V102 and QSV91G engines together, it is evident that the Hexagon Head Cap Screw 3426222 is a versatile component that supports multiple functions within these engine models. Its application in securing engine covers, brackets, and other structural elements underscores its importance in maintaining the overall performance and reliability of the engines.

Role of Part 3426222 Hexagon Head Cap Screw in Engine Systems

In the context of engine systems, the part 3426222 Hexagon Head Cap Screw is instrumental in ensuring the secure assembly and operation of various components.

Exhaust Assembly Manifold

Within the exhaust assembly manifold, the Hexagon Head Cap Screw plays a significant role in fastening the manifold to the engine block or cylinder head. This secure attachment is essential for maintaining the integrity of the exhaust system, ensuring that exhaust gases are efficiently directed away from the engine. The screw’s design allows for easy installation and removal, facilitating maintenance and repair processes.

Manifold

In the manifold, whether it be an intake or exhaust manifold, the Hexagon Head Cap Screw is used to attach the manifold to other components such as the engine block, cylinder head, or catalytic converter. This connection is vital for the proper flow of air or exhaust gases, contributing to the engine’s performance and efficiency. The screw’s hexagonal head provides a firm grip for tools, reducing the risk of stripping during tightening or loosening.

Exhaust System

Throughout the exhaust system, the Hexagon Head Cap Screw is employed in various joints and connections. It secures components such as the exhaust pipes, muffler, and catalytic converter, ensuring a leak-free and robust exhaust path. The screw’s durability and resistance to vibration make it suitable for the high-temperature and high-stress environment of the exhaust system.

Conclusion

The Cummins 3426222 Hexagon Head Cap Screw is a fundamental fastener in engine systems, contributing to the secure and efficient operation of exhaust and manifold components. Its reliable performance under demanding conditions makes it an indispensable part in the assembly and maintenance of engine systems.