4325269
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4325269, is a component manufactured by Cummins, a prominent name in the commercial truck industry. This screw plays a significant role in the maintenance and operation of commercial trucks, ensuring the secure fastening of various components. Its design and functionality are tailored to meet the demanding requirements of heavy-duty applications.

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. Flange head screws are commonly used in fastening applications where a combination of strength, stability, and ease of installation is required ¹.

Purpose and Role in Truck Operation

This Cummins part is specifically designed for use in commercial trucks. It contributes to the structural integrity and functionality of truck components by securely fastening parts that are subject to significant stress and vibration. This screw ensures that critical components remain firmly in place, which is vital for the safe and efficient operation of the vehicle.

Key Features

The 4325269 features a hexagonal head design that facilitates easy and precise torque application. The flange at the base of the screw provides additional stability and load distribution, reducing the risk of the screw pulling through the material. Additionally, the screw is made from high-quality materials that offer excellent durability and resistance to corrosion, making it suitable for use in harsh environments.

Benefits

Using this part offers several advantages. Its design allows for improved torque application, ensuring that components are securely fastened. The flange characteristic enhances resistance to loosening, even under dynamic conditions. Furthermore, the material properties of the screw contribute to its durability, providing long-lasting performance in demanding applications.

Installation Guidelines

Proper installation of this part is crucial for ensuring secure fastening. Begin by selecting the appropriate drill bit size to create a pilot hole, which helps guide the screw and reduces the risk of splitting the material. Use a torque wrench to apply the recommended torque specifications, ensuring that the screw is tightened to the manufacturer’s guidelines. It is also important to follow best practices, such as avoiding over-tightening, to prevent damage to the screw or the surrounding material.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws may include loosening over time due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues promptly. If a screw shows signs of corrosion, it should be replaced to prevent failure. Additionally, ensuring that all screws are properly torqued during installation can help maintain their integrity and performance.

Cummins: Manufacturer 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 reputation for quality and innovation in the commercial truck industry. The company is committed to delivering reliable and high-performance components that meet the needs of its customers, ensuring the efficient and safe operation of commercial vehicles.

Cummins Hexagon Flange Head Cap Screw 4325269 in ISV Engines

The Cummins Hexagon Flange Head Cap Screw part number 4325269 is a critical component in the ISV (Infiniti Service Vehicle) engines by Nissan. This part is essential for securing various engine components, ensuring the engine operates smoothly and efficiently.

In the ISV engines, the 4325269 screw is used in several key areas. It is often employed to fasten parts that require a strong and reliable connection, such as securing engine covers, brackets, and other structural elements. The screw’s design, featuring a hexagonal head, allows for easy and precise tightening with a wrench or socket, which is crucial for maintaining the integrity of the engine assembly.

The use of this screw in ISV engines highlights its importance in maintaining the structural stability and operational efficiency of the engine. By providing a secure fastening solution, the 4325269 screw ensures that all connected parts remain in place under various operating conditions, contributing to the overall reliability and performance of the engine.

Role of Part 4325269 Hexagon Flange Head Cap Screw in Engine Systems

Part 4325269 Hexagon Flange Head Cap Screw is integral to the secure assembly and operation of various engine components. Its application spans across multiple areas, ensuring the structural integrity and efficient functioning of the engine system.

Crankcase Breather Arrangement

In the crankcase breather arrangement, the Hexagon Flange Head Cap Screw is used to fasten the breather cover securely to the crankcase. This ensures that the breather system functions correctly by allowing pressure to be released from the crankcase while preventing contaminants from entering the engine.

Cover Mounting

When mounting covers, such as the valve cover or timing cover, the Hexagon Flange Head Cap Screw plays a significant role. It provides a robust connection that withstands engine vibrations and thermal expansion, ensuring the cover remains sealed and protects internal components.

Front Sprocket Attachment

For the front sprocket, which is part of the engine’s drivetrain, the Hexagon Flange Head Cap Screw is employed to attach the sprocket to the crankshaft or output shaft. This secure attachment is vital for transmitting power efficiently from the engine to the transmission system.

Fuel Filter Mounting

In the fuel system, the Hexagon Flange Head Cap Screw is utilized in the mounting of the fuel filter. It ensures that the filter is held firmly in place, allowing for stable and uninterrupted fuel flow to the engine, which is essential for consistent performance.

Oil Level Gauge Location

The oil level gauge, an important diagnostic tool, is often secured in place using the Hexagon Flange Head Cap Screw. This ensures that the gauge is accurately positioned to provide reliable readings of the engine’s oil level, aiding in maintenance and performance monitoring.

Long Block Kit Assembly

Within a long block kit, which includes the engine block, crankshaft, pistons, and other essential components, the Hexagon Flange Head Cap Screw is used extensively. It helps in assembling various parts together, ensuring that the long block is a cohesive and functional unit ready for installation.

Fuel System Components

In the broader fuel system, including components like the fuel pump and fuel lines, the Hexagon Flange Head Cap Screw is used to secure fittings and connections. This ensures that the fuel system remains leak-free and operates under the precise pressure required for optimal engine performance.

By understanding the applications of Part 4325269 Hexagon Flange Head Cap Screw across these components, engineers and mechanics can appreciate its importance in maintaining the structural integrity and operational efficiency of engine systems.

Conclusion

The 4325269 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks and engines. Its design, featuring a hexagonal head and flanged base, ensures secure fastening and load distribution, contributing to the structural integrity and efficient functioning of various engine components. Proper installation and maintenance of this screw are essential for the safe and reliable operation of commercial vehicles.