4385911
Hexagon Flange Head Cap Screw
Cummins®

The 4385911 Hex Flange Head Cap Screw is a specialized fastener produced by Cummins, a well-known manufacturer in the commercial truck industry. This screw is designed for use in various applications within commercial trucks, where reliable fastening solutions are required to ensure the integrity and performance of truck components.

Basic Concepts

A Hex Flange Head Cap Screw is a type of bolt characterized by a hexagonal head and a flanged base. This design allows for efficient tightening using a wrench or socket and provides a larger bearing surface to distribute load more effectively. Mechanically, it functions by converting torque applied to the head into clamping force, which secures two or more components together ¹.

Purpose and Role in Truck Operation

In the context of commercial trucks, the 4385911 Hex Flange Head Cap Screw plays a significant role in fastening various components, ensuring they remain securely attached under operational conditions. Its application contributes to the overall stability and reliability of truck systems, facilitating efficient maintenance and repair processes ².

Key Features

This Cummins part features a robust design that includes a hexagonal head for easy tightening and a flanged base to prevent the screw from pulling through the material. It is typically made from high-strength materials to withstand the demanding conditions of commercial truck operations. Unique attributes such as corrosion resistance and high tensile strength enhance its performance and durability ³.

Benefits

Using the 4385911 Hex Flange Head Cap Screw offers several advantages, including improved fastening strength due to its design and material composition. It provides resistance to vibration, which is crucial in the dynamic environment of a commercial truck. Additionally, its design allows for ease of installation and removal, facilitating quicker maintenance procedures ⁴.

Installation Process

To install the Hex Flange Head Cap Screw, begin by aligning the screw with the designated hole in the components to be fastened. Use a wrench or socket to tighten the screw gradually, ensuring even torque application to avoid cross-threading. It is recommended to follow the manufacturer’s torque specifications to achieve secure fastening without over-tightening.

Troubleshooting and Maintenance

Common issues with the Hex Flange Head Cap Screw may include loosening due to vibration or corrosion over time. Regular inspection and tightening can address loosening, while applying a corrosion-resistant coating can help prevent rust. Maintenance practices such as keeping the screw and surrounding areas clean can prolong its lifespan and ensure optimal performance.

Compatibility and Applications

The 4385911 Hex Flange Head Cap Screw is commonly used in various applications within commercial trucks, including but not limited to, fastening engine components, body panels, and chassis parts. Its versatility and robust design make it suitable for a wide range of fastening needs in the commercial truck industry.

Safety Considerations

When working with the Hex Flange Head Cap Screw, it is important to observe safety practices to prevent accidents or injuries. This includes using the appropriate tools for installation and removal, wearing protective gear, and storing the screws in a dry, secure location to prevent corrosion and physical damage.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the commercial truck industry, Cummins offers a wide range of products designed to meet the demanding requirements of commercial vehicle applications, ensuring reliability, performance, and efficiency.

Cummins Hex Flange Head Cap Screw Part 4385911 in QSK95 Engines

The Cummins Hex Flange Head Cap Screw part number 4385911 is a critical component in the assembly and maintenance of the QSK95 series engines. This part is specifically designed to fit seamlessly within the engine architecture of the QSK95 CM2350 K111 and QSK95 CM2350 K113 models.

In these engines, the Hex Flange Head Cap Screw is utilized in various applications where secure fastening is essential. Its flange head design provides a broad surface area for torque application, ensuring that the screw maintains a tight and reliable connection. This is particularly important in high-stress environments where the engine operates under significant load and vibration.

The part number 4385911 is engineered to meet the stringent requirements of the QSK95 engines, ensuring compatibility and performance. Its use in these engines highlights Cummins’ commitment to providing high-quality, durable components that enhance the overall reliability and efficiency of the engine systems.

Role of Part 4385911 Hex Flange Head Cap Screw in Engine Systems

The Hex Flange Head Cap Screw, identified by part number 4385911, is integral to the assembly and securement of various components within engine systems. Its application spans across several key areas, ensuring the structural integrity and operational efficiency of the engine.

Fuel Control Module

In the fuel control module, the Hex Flange Head Cap Screw is utilized to fasten the module securely to the engine block or its designated mounting surface. This secure attachment is vital for maintaining the module’s alignment and stability, which in turn ensures precise fuel delivery and management. The screw’s design allows for easy installation and removal, facilitating maintenance and adjustments as needed.

Fuel Control and Pump Assembly

Within the fuel control and pump assembly, part 4385911 plays a role in attaching the pump housing to the engine or its support structure. This securement is essential for maintaining the pump’s operational alignment and preventing vibrations that could lead to fuel delivery inconsistencies. The screw’s flange head provides additional surface area for a more robust connection, enhancing the assembly’s durability under the dynamic conditions of engine operation.

Auxiliary Components

For auxiliary components such as sensors, filters, or additional control units, the Hex Flange Head Cap Screw is employed to ensure these elements are firmly attached to the engine or its subsystems. This secure attachment is important for the accurate functioning of these components, as any movement or misalignment could affect their readings or performance. The screw’s hexagonal head allows for efficient tightening using standard tools, ensuring a snug fit without over-tightening, which could damage the components.

Conclusion

In summary, the Hex Flange Head Cap Screw (part 4385911) is a versatile fastener that contributes to the secure and efficient operation of various engine components. Its application across different areas of the engine system underscores its importance in maintaining the structural and functional integrity of the engine.