4325253
Hexagon Flange Head Cap Screw
Cummins®

The Cummins Hexagon Flange Head Cap Screw, identified by part number 4325253, is a critical component in the automotive and heavy-duty truck industry. Manufactured by Cummins, a renowned name in engine and component production, this part is essential for its robust design and reliable performance in heavy-duty truck applications ¹.

Basic Concepts

The Hexagon Flange Head Cap Screw is 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 for the distribution of clamping force. This design ensures secure fastening of components, contributing to the structural integrity and stability of truck assemblies ².

Purpose and Role in Truck Operation

This Cummins part plays a vital role in the operation and maintenance of heavy-duty trucks. It is used in various components where secure fastening is required, including engine mounts, chassis components, and body panels. Its application ensures that parts remain firmly attached, enhancing the overall safety and performance of the vehicle ³.

Key Features

The 4325253 Hexagon Flange Head Cap Screw is distinguished by several key features. Its hexagonal head design facilitates easy and precise tightening with common tools. The flange at the base of the screw head enhances the distribution of clamping force, reducing the risk of damage to the fastened materials. Additionally, the screw is crafted from high-quality materials, offering excellent durability and resistance to corrosion, which is crucial for withstanding the harsh environments often encountered by heavy-duty trucks.

Benefits

Utilizing the 4325253 Hexagon Flange Head Cap Screw offers several advantages. The design of the screw enhances fastening security, providing a strong and stable connection between components. Its resistance to vibration helps maintain the integrity of the fastening over time, even under the dynamic conditions experienced by trucks. Furthermore, the screw’s design allows for ease of installation and removal, facilitating maintenance and repair processes.

Installation and Usage

Proper installation of the 4325253 Hexagon Flange Head Cap Screw is crucial for ensuring optimal performance and longevity. It is recommended to follow specific torque specifications provided by the manufacturer to achieve the correct clamping force without over-tightening, which could lead to damage. Best practices include using the appropriate tools and ensuring the screw and mating surfaces are clean and free of debris to prevent corrosion and ensure a secure fit.

Troubleshooting and Maintenance

Common issues with the 4325253 Hexagon Flange Head Cap Screw, such as loosening or corrosion, can often be addressed through regular inspection and maintenance. If a screw appears loose, it should be re-tightened to the manufacturer’s specified torque. Corrosion can be mitigated by applying a suitable anti-corrosion treatment and ensuring that the screw is replaced if significant degradation is observed. Regular maintenance checks can help identify and address issues before they lead to more significant problems.

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 renowned for its commitment to quality, innovation, and customer satisfaction. The company’s product range extends beyond engines to include a variety of components and systems designed to enhance the performance, efficiency, and reliability of vehicles and equipment. Cummins’ dedication to excellence is evident in every product it offers, including the 4325253 Hexagon Flange Head Cap Screw.

Cummins Hexagon Flange Head Cap Screw 4325253 in Nissan Engines

The Cummins Hexagon Flange Head Cap Screw, part number 4325253, is a critical component in various Nissan engines, ensuring secure fastening and stability. This screw is designed to withstand high stress and provide a reliable connection in demanding environments.

ISV (Nissan)

In the ISV engines, the 4325253 screw is utilized in several key areas, including:

• Cylinder Head Assembly: It secures the cylinder head to the engine block, ensuring a tight seal and preventing leaks.
• Turbocharger Mounting: The screw is used to attach the turbocharger to the engine, maintaining proper alignment and reducing vibrations.
• Oil Pan Fastening: It helps in securing the oil pan to the engine, protecting the internal components and ensuring smooth oil flow.

The precision engineering of the 4325253 screw ensures that it fits seamlessly into the engine’s design, providing durability and reliability under various operating conditions.

Hexagon Flange Head Cap Screw in Engine Systems

Exhaust Recirculation System

In the exhaust recirculation (EGR) system, the 4325253 Hexagon Flange Head Cap Screw is utilized to secure various components, ensuring the system operates efficiently. This screw is often found fastening the EGR valve to the engine block or intake manifold. Its role is to maintain a secure connection, preventing any unwanted vibrations or movements that could disrupt the EGR valve’s function. Additionally, it helps in sealing the connection, which is essential for the proper recirculation of exhaust gases back into the intake manifold. This not only reduces emissions but also improves engine efficiency.

Front Sprocket Cover

The front sprocket cover is another area where the 4325253 Hexagon Flange Head Cap Screw proves its utility. This screw is employed to attach the front sprocket cover to the engine casing. The front sprocket cover protects the timing chain or belt and the front sprocket from debris and contaminants. By using this screw, the cover is held firmly in place, ensuring it does not become dislodged during engine operation. This is particularly important in high-performance engines where the front sprocket and timing components are subjected to significant stress and vibration. The secure attachment provided by the screw helps maintain the integrity of the timing system, contributing to the overall reliability and performance of the engine.

Conclusion

The Cummins Hexagon Flange Head Cap Screw, part number 4325253, is a vital component in heavy-duty truck and engine applications. Its robust design, reliable performance, and key features make it an essential part for ensuring secure fastening and stability in various components. Proper installation, regular maintenance, and understanding its role in different engine systems are crucial for maximizing its benefits and ensuring the longevity and efficiency of the vehicles it supports.