3644471
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, identified by part number 3644471, is a specialized fastener utilized in commercial trucks. Manufactured by Cummins, a reputable name in the automotive industry, this screw is designed to meet the rigorous demands of heavy-duty applications. Its role in ensuring the integrity and functionality of various truck components underscores its significance in the realm of commercial vehicle maintenance and operation ¹.

Basic Concepts

A Hexagon Flange Head Cap Screw is characterized by its hexagonal head and a flange beneath the head. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area to distribute the load and prevent the screw from sinking into softer materials. In the context of truck mechanics, this screw is used to secure components that require both strong fastening and resistance to vibration and movement ².

Purpose and Role in Truck Operation

The 3644471 Hexagon Flange Head Cap Screw plays a role in the operation of a truck by securing critical components that are subject to significant stress and vibration. Its applications range from fastening engine parts to securing chassis components. The screw’s design ensures that these components remain firmly in place, contributing to the overall stability and performance of the truck.

Key Features

The 3644471 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise tightening. The flange beneath the head enhances the screw’s ability to distribute load and resist sinking. Additionally, the screw is crafted from high-strength materials, ensuring durability and reliability in heavy-duty applications. These features collectively contribute to the screw’s effectiveness in demanding environments.

Benefits

The 3644471 Hexagon Flange Head Cap Screw offers several benefits. Its design enhances fastening security, making it less likely to loosen over time compared to standard screws. The flange provides additional stability, which is particularly beneficial in applications where components are subject to vibration. Furthermore, the screw’s material properties ensure longevity, reducing the need for frequent replacements and maintenance.

Installation Considerations

Proper installation of the 3644471 Hexagon Flange Head Cap Screw is vital to ensure optimal performance and longevity. It is recommended to use the appropriate torque specifications provided by the manufacturer to avoid over-tightening or under-tightening. Additionally, ensuring that the surfaces where the screw will be installed are clean and free of debris will contribute to a secure and lasting fastening.

Troubleshooting and Maintenance

Common issues with the 3644471 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion. Regular inspections can help identify these issues early. If loosening is detected, re-tightening the screw to the manufacturer’s specified torque is recommended. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosion treatment can help prolong the screw’s service life.

Cummins Overview

Cummins is a well-established manufacturer known for producing high-quality automotive components. The company’s commitment to innovation and reliability is reflected in its product line, which includes a wide range of parts designed to meet the demands of commercial and heavy-duty applications. Cummins’ reputation for quality and performance makes its components, including the 3644471 Hexagon Flange Head Cap Screw, a preferred choice among professionals in the automotive industry ³.

Cummins Hexagon Flange Head Cap Screw Part 3644471 in Engine Applications

The Cummins part number 3644471, a Hexagon Flange Head Cap Screw, is integral to the assembly and maintenance of several Cummins engine models. This part is designed to provide a secure fastening solution, ensuring that components are held firmly in place under operational stresses.

QSK45 Engines

In the QSK45 series, the Hexagon Flange Head Cap Screw is utilized in various applications to maintain the integrity of engine assemblies. These engines, known for their robust performance, require reliable fasteners to withstand high torque and pressure conditions. The part 3644471 is specifically engineered to meet these demands, ensuring that critical engine components remain securely fastened during operation.

CM500 Engines

Similarly, in the CM500 engine series, the Hexagon Flange Head Cap Screw plays a role in the assembly and maintenance of the engine. The CM500 engines are designed for demanding applications, and the use of high-quality fasteners like the part 3644471 is essential for maintaining engine reliability and performance. This screw is used in areas where precise fastening is critical to the engine’s operation and longevity.

Grouping of Engines

When considering the QSK45 and CM500 engines together, it is evident that the Hexagon Flange Head Cap Screw part 3644471 is a versatile component that supports a range of applications within these engine series. The commonality in their use underscores the importance of this part in ensuring the structural integrity and operational efficiency of Cummins engines.

Role of Part 3644471 Hexagon Flange Head Cap Screw in Engine Systems

The part 3644471 Hexagon Flange Head Cap Screw is integral in securing and maintaining the integrity of various engine components. Its design and function facilitate efficient assembly and disassembly, ensuring that parts remain firmly in place under operational stress.

Application in Filters

In filter assemblies, the Hexagon Flange Head Cap Screw is used to secure filter housings. This ensures that the filter remains sealed and functions correctly, trapping contaminants and maintaining the purity of the engine’s fluids. Proper sealing is essential for the filter’s effectiveness, preventing bypass of unfiltered substances.

Integration with Lubricating Oil Systems

Within lubricating oil systems, this screw plays a role in attaching oil galleries and passages. It ensures that oil flow pathways remain intact, providing consistent lubrication to moving parts. This is particularly important in high-stress areas where lubrication failure could lead to increased wear and potential engine damage.

Use in Lifting Fixtures

For lifting fixtures, the Hexagon Flange Head Cap Screw is employed to secure components that are subject to significant force during engine maintenance or transportation. Its robust design ensures that these fixtures can withstand the loads applied during lifting operations, maintaining structural integrity and safety.

Conclusion

The 3644471 Hexagon Flange Head Cap Screw is a versatile and reliable fastener that plays a critical role in the maintenance and operation of commercial trucks and Cummins engines. Its design features, including the hexagonal head and flange, enhance its effectiveness in securing critical components under demanding conditions. Proper installation, regular maintenance, and the use of high-quality materials ensure the longevity and reliability of this Cummins part, making it an essential component in heavy-duty applications.