4323881
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4323881, is a specialized fastener produced by Cummins, a leading manufacturer in the automotive and heavy-duty truck industries. This screw is integral to the assembly and maintenance of commercial trucks, ensuring secure fastening in various applications.

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 tightening and loosening using a wrench or socket, while the flange provides a larger bearing surface that helps distribute the load and prevent the screw from sinking into the material. Within mechanical systems, these screws are used to fasten components securely, ensuring stability and integrity under operational stresses ¹.

Purpose and Role in Truck Operation

This Cummins part plays a significant role in the operation and maintenance of commercial trucks. It is utilized in applications where secure fastening is required, such as attaching brackets, panels, and other structural components. Its design ensures that the fastened parts remain securely in place, even under dynamic loads and vibrations typical in truck operations ².

Key Features

The 4323881 features a hexagonal head that facilitates easy and precise tightening. The flange beneath the head enhances the bearing surface, reducing the risk of the screw head sinking into softer materials. Additionally, the screw is crafted from high-strength materials, ensuring durability and resistance to wear and corrosion ³.

Benefits

Using this part in truck applications offers several advantages. The hexagonal head design allows for efficient and consistent tightening, while the flange enhances the load distribution, reducing the likelihood of damage to the fastened material. The screw’s resistance to vibration ensures that fastenings remain secure over time, and its ease of installation and removal simplifies maintenance procedures.

Installation and Usage

Proper installation of the 4323881 involves using the correct torque specifications to ensure secure fastening without over-tightening, which could damage the screw or the material. Best practices include using a torque wrench to achieve the recommended torque values and ensuring that the screw is aligned correctly with the fastened components.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. Regular inspection and maintenance can help identify and address these issues. If a screw shows signs of corrosion or damage, it should be replaced to maintain the integrity of the fastening. Additionally, ensuring that all screws are tightened to the correct torque specifications during installation can prevent loosening over time.

Safety Considerations

When handling, installing, and maintaining the 4323881, it is important to follow safety guidelines to prevent accidents. This includes wearing appropriate personal protective equipment, using the correct tools for installation and removal, and ensuring that all fastenings are secure before operating the vehicle. Adhering to these safety practices helps ensure compliance with industry standards and protects both the equipment and the personnel involved.

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 is committed to quality and innovation, providing reliable and efficient solutions for various industries, including automotive and heavy-duty trucking. The company’s extensive product range and dedication to excellence make it a trusted name in the industry.

Cummins Engine Part 4323881: Hexagon Flange Head Cap Screw

The Cummins part number 4323881, a Hexagon Flange Head Cap Screw, is a critical component in the assembly of several Cummins engine models. This screw is designed to provide secure fastening in high-stress environments, ensuring the integrity of engine components during operation.

Application in Cummins Engines

QSK95 CM2350 K111 and QSK95 CM2350 K113

The Hexagon Flange Head Cap Screw (part 4323881) is utilized in the QSK95 CM2350 K111 and QSK95 CM2350 K113 engines. These engines are part of the Cummins QSK series, known for their robust performance and reliability in heavy-duty applications. The screw’s design allows it to withstand the high torque and pressure conditions typical in these engines, ensuring that critical components remain tightly secured.

QST30 CM2350 T101

Similarly, the QST30 CM2350 T101 engine also incorporates the Hexagon Flange Head Cap Screw (part 4323881). This engine is part of the Cummins QST series, which is designed for applications requiring high power output and durability. The screw’s flange head provides a large bearing surface, distributing the load evenly and preventing damage to the fastened parts.

Importance of the Hexagon Flange Head Cap Screw

The use of the Hexagon Flange Head Cap Screw in these engines highlights its importance in maintaining the structural integrity and operational efficiency of Cummins engines. The screw’s design, with its hexagonal head and flange, ensures a secure and stable connection, which is crucial for the longevity and performance of the engine components.

Role of Part 4323881 Hexagon Flange Head Cap Screw in Engine Systems

In the intricate world of engine systems, the 4323881 plays a significant role in ensuring the secure assembly and operation of various components. This screw is instrumental in fastening and maintaining the integrity of several key engine parts.

Arrangement

The arrangement of components within an engine is vital for its efficient operation. The Hexagon Flange Head Cap Screw is often used to secure the arrangement of modules and other components. Its design allows for a firm grip, preventing any unwanted movement that could lead to misalignment or failure of the arrangement.

Crankcase Breather

The crankcase breather system is essential for maintaining the proper pressure within the crankcase. The Hexagon Flange Head Cap Screw is utilized to secure the breather components, ensuring that they remain in place and function correctly. This helps in expelling contaminants and moisture from the crankcase, thereby prolonging the life of the engine.

Module

In modern engines, various electronic modules play a pivotal role in controlling and monitoring engine performance. The Hexagon Flange Head Cap Screw is employed to fasten these modules securely to the engine block or other mounting points. This ensures that the modules remain stable and operate within specified parameters, contributing to the overall efficiency and reliability of the engine.

Fuel Control

Fuel control systems are integral to the performance and efficiency of an engine. The Hexagon Flange Head Cap Screw is used to secure components within the fuel control system, such as sensors and actuators. This ensures that these components remain firmly in place, allowing for precise fuel delivery and combustion, which is essential for optimal engine performance.

Conclusion

In summary, the 4323881 is a fundamental component in the assembly and maintenance of various engine systems. Its role in securing the arrangement, crankcase breather, module, and fuel control components underscores its importance in ensuring the smooth and efficient operation of the engine.