4394443
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4394443 and manufactured by Cummins, is a component of significance in the realm of heavy-duty trucks. Cummins, a well-established name in the automotive industry, is recognized for its commitment to quality and innovation. This screw is integral to the mechanical systems of trucks, ensuring the secure fastening of various components.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flange. The hexagonal head allows for efficient torque application using standard tools, while the flange provides a larger bearing surface, distributing the load more evenly and reducing the risk of the screw sinking into softer materials. Within a truck’s mechanical system, this screw plays a role in securely fastening components, contributing to the overall stability and functionality of the vehicle.

Role in Truck Operation

The 4394443 Hexagon Flange Head Cap Screw is utilized in various applications across heavy-duty trucks. It is commonly employed in the fastening of engine components, chassis parts, and other critical assemblies. Its role is to provide a secure and stable connection, ensuring that components remain firmly in place under the demanding conditions encountered in heavy-duty truck operations.

Key Features

The 4394443 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and reliability. Its hexagonal head design facilitates easy and efficient torque application, while the flange offers increased bearing surface area. The screw is crafted from high-quality materials, ensuring durability and resistance to corrosion. Additionally, its design incorporates features that resist loosening, maintaining secure fastening over time.

Benefits

The benefits of the 4394443 Hexagon Flange Head Cap Screw are manifold. Its robust construction and material properties contribute to enhanced durability, allowing it to withstand the rigors of heavy-duty truck operations. The screw’s design facilitates improved torque application, ensuring secure fastening. Furthermore, its resistance to loosening helps maintain the integrity of connections, reducing the need for frequent re-tightening.

Installation and Usage

Proper installation of the 4394443 Hexagon Flange Head Cap Screw is crucial for optimal performance. It is recommended to follow torque specifications provided by the manufacturer to ensure secure fastening without over-tightening, which could lead to damage. Utilizing the appropriate tools and techniques during installation will contribute to the screw’s longevity and effectiveness in its intended applications.

Troubleshooting and Maintenance

In the event of issues related to the 4394443 Hexagon Flange Head Cap Screw, troubleshooting may involve checking for proper torque, inspecting for signs of corrosion or damage, and ensuring that the screw is correctly seated. Regular maintenance, including periodic inspection and re-tightening if necessary, can help ensure the screw’s continued performance and longevity.

Cummins Overview

Cummins, the manufacturer of the 4394443 Hexagon Flange Head Cap Screw, has a rich history in the automotive industry. Known for its commitment to quality and innovation, Cummins has established a reputation for producing reliable and high-performance components. The company’s dedication to excellence is reflected in its wide range of products, designed to meet the demanding requirements of heavy-duty applications.

Hexagon Flange Head Cap Screw 4394443 in Cummins Engines

The Cummins Hexagon Flange Head Cap Screw part number 4394443 is a critical component in various Cummins engine models. This screw is designed to secure different parts within the engine, ensuring structural integrity and operational efficiency. Here is how it fits into specific Cummins engines:

B6.7 CM2670 Series

• B6.7 CM2670 B153B
• L8.9 CM2670 L134C
• L9 CM2670 L128B
• Z14 CM2670 Z103B

In the B6.7 CM2670 series, the 4394443 screw is used to fasten various components, including the cylinder head and other critical engine parts. Its flange head design provides a larger surface area for torque application, ensuring a secure fit.

D4.0 CM2620 Series

• D4.0 CM2620 D103B

For the D4.0 CM2620 D103B engine, the 4394443 screw is employed to secure the engine’s internal components, ensuring that parts remain tightly fastened under operational stress.

F3.8 CM2620 and F4.5 CM2620 Series

• F3.8 CM2620 F137B
• F4.5 CM2620 F139B

In both the F3.8 CM2620 F137B and F4.5 CM2620 F139B engines, the 4394443 screw is used to fasten components that are subject to high stress and vibration. Its robust design ensures that these parts remain securely in place, contributing to the engine’s overall reliability.

X11 CM2670, X12 CM2670, and X13 CM2670 Series

• X11 CM2670 X126B
• X12 CM2670 X121B
• X13 CM2670 X122B

The X11 CM2670 X126B, X12 CM2670 X121B, and X13 CM2670 X122B engines utilize the 4394443 screw to secure various engine parts, including those that are critical for maintaining the engine’s structural integrity and operational efficiency. The screw’s design allows for easy installation and removal, facilitating maintenance and repair processes.

Role of Part 4394443 Hexagon Flange Head Cap Screw in Engine Systems

The part 4394443 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems, ensuring stability and proper function. In the context of an aftertreatment device, this screw is often used to fasten the device securely to the vehicle’s frame or other structural components. This ensures that the aftertreatment device remains in place under the dynamic conditions of vehicle operation, contributing to the overall efficiency of emissions control.

Within the aftertreatment system, the Hexagon Flange Head Cap Screw plays a significant role in attaching sensor brackets. These sensors are vital for monitoring the performance of the aftertreatment system, and the secure attachment provided by the screw ensures accurate and reliable data collection.

In the top-level assembly of the aftertreatment system, this screw is employed to join multiple components together, creating a robust and integrated structure. This assembly often includes various modules and housings that need to be held firmly in place to function correctly. The flange head of the screw provides additional surface area for a more secure fit, reducing the risk of vibration-induced loosening.

Overall, the part 4394443 Hexagon Flange Head Cap Screw is a key component in maintaining the integrity and performance of engine systems by ensuring that critical parts are securely fastened and aligned.

Conclusion

The 4394443 Hexagon Flange Head Cap Screw, manufactured by Cummins, is a vital component in heavy-duty truck and engine systems. Its design, featuring a hexagonal head and flange, ensures secure fastening and resistance to loosening. The screw’s robust construction and material properties contribute to its durability and reliability in demanding applications. Proper installation and maintenance are essential for optimal performance, ensuring that components remain securely fastened under operational stress. Cummins’ commitment to quality and innovation is evident in the design and functionality of this part, making it a critical element in the mechanical systems of heavy-duty trucks and engines.