4391519
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, identified by part number 4391519, is a component manufactured by Cummins, a prominent name in the commercial truck industry. This screw plays a significant role in the assembly and maintenance of commercial trucks, ensuring secure fastening in various applications. Cummins is renowned for its high-quality parts and comprehensive product range, making the 4391519 Hexagon Flange Head Cap Screw a reliable choice for truck operators and maintenance professionals.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. 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. In a truck’s mechanical system, these screws are used to secure components, ensuring structural integrity and reliable performance under various operating conditions ¹.

Purpose and Role

The 4391519 Hexagon Flange Head Cap Screw is designed for specific applications within a truck’s mechanical system. It is commonly used in areas where high tensile strength and resistance to loosening are required. Typical applications include fastening engine components, securing chassis parts, and attaching body panels. Its role is to provide a robust and durable connection that can withstand the rigors of heavy-duty truck operations ².

Key Features

The 4391519 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and reliability. Its hexagonal head design allows for easy and precise torque application, reducing the risk of over-tightening or stripping. The flange at the base of the screw provides additional contact area, which helps distribute the load and prevents the screw from pulling through the material. Additionally, the screw is made from high-quality materials, ensuring durability and resistance to corrosion, which is vital in the demanding environment of commercial trucking ³.

Benefits

The 4391519 Hexagon Flange Head Cap Screw offers several benefits that make it an excellent choice for heavy-duty applications. Enhanced fastening security is achieved through its design, which resists loosening even under vibration and dynamic loads. The flange feature contributes to improved load distribution, reducing the risk of material deformation. Furthermore, the screw’s durable material composition ensures long-lasting performance, even in corrosive environments, contributing to the overall reliability of the truck’s mechanical system.

Installation and Usage

Proper installation of the 4391519 Hexagon Flange Head Cap Screw is crucial for ensuring its effectiveness and longevity. It is recommended to use the appropriate torque specifications provided by Cummins to achieve the correct tension without over-tightening. Utilizing a torque wrench is advised to maintain consistency and prevent damage to the screw or the fastened components. Additionally, ensuring that the surfaces are clean and free of debris before installation will help achieve a secure and lasting connection.

Troubleshooting and Maintenance

Common issues with the 4391519 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion over time. Regular inspections should be conducted to identify any signs of wear or damage. If loosening is detected, re-tightening to the specified torque is recommended. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosion treatment can help prevent further degradation. Maintaining proper torque and conducting routine checks will ensure the screw continues to perform reliably.

Cummins Overview

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 innovation, quality, and reliability in the commercial truck industry. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of heavy-duty applications. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name among truck operators and maintenance professionals worldwide.

Hexagon Flange Head Cap Screw (Part 4391519) in Cummins Engines

The Hexagon Flange Head Cap Screw, identified by part number 4391519, is a critical component in the assembly and operation of several Cummins engines. This screw is integral to the structural integrity and functionality of the engines, ensuring that various parts are securely fastened and aligned.

QSK95 Engine

In the QSK95 engine, the 4391519 screw is utilized in several key areas. It is often employed in the fastening of engine covers and housings, ensuring that these components remain securely attached under the high-stress conditions typical of this engine. The precision and strength of the screw contribute to maintaining the engine’s operational efficiency and longevity.

CM2350 Engine

For the CM2350 engine, the 4391519 screw plays a vital role in the assembly of various engine components. Its use in securing parts such as the cylinder head and other critical assemblies ensures that the engine operates smoothly and reliably. The screw’s design, with its hexagonal flange head, allows for easy and secure tightening, which is essential in maintaining the engine’s performance.

K113 Engine

In the K113 engine, the 4391519 screw is similarly crucial. It is often used in the fastening of engine components that require high precision and strength. The screw’s design ensures that these parts remain securely fastened, even under the demanding conditions of engine operation. This contributes to the overall reliability and efficiency of the engine.

The use of the 4391519 screw across these Cummins engines highlights its importance in maintaining the structural integrity and performance of the engines. Its design and material properties make it an ideal choice for securing various components, ensuring that the engines operate efficiently and reliably.

Role of Part 4391519 Hexagon Flange Head Cap Screw in Engine Systems

The part 4391519 Hexagon Flange Head Cap Screw is integral in securing various components within engine systems, ensuring stability and efficient operation.

Aftertreatment Bracket

In the aftertreatment bracket, the Hexagon Flange Head Cap Screw is used to firmly attach the bracket to the engine frame. This secure attachment is essential for maintaining the structural integrity of the aftertreatment system, which includes components like the aftertreatment device and decomposition reactor. The screw’s design allows for a robust connection that can withstand the vibrations and stresses encountered during engine operation.

Aftertreatment Device

Within the aftertreatment device, the Hexagon Flange Head Cap Screw plays a role in fastening internal components, such as sensors and control modules, to the device housing. This ensures that these components remain in place and function correctly, contributing to the overall efficiency of the aftertreatment process. The screw’s flange head provides additional surface area for a tighter grip, reducing the risk of loosening over time.

Decomposition Reactor

In the decomposition reactor, the Hexagon Flange Head Cap Screw is employed to secure the reactor housing and internal components. This is vital for maintaining the reactor’s structural integrity and ensuring that the chemical reactions within proceed as intended. The screw’s design helps in distributing the load evenly, preventing any potential stress points that could lead to failure.

Service Kit

When included in a service kit, the Hexagon Flange Head Cap Screw is often used to reassemble or repair various engine components. Its application in the service kit ensures that all parts are correctly and securely fastened, facilitating easier maintenance and reducing downtime. The screw’s compatibility with a variety of components makes it a versatile choice for service technicians.

Conclusion

Overall, the part 4391519 Hexagon Flange Head Cap Screw is a fundamental component in ensuring the secure assembly and reliable operation of engine systems, particularly in aftertreatment applications. Its robust design, high-quality materials, and ease of installation make it an indispensable part for maintaining the structural integrity and performance of Cummins engines.