4325249
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4325249, is a specialized fastener produced by Cummins, a leading manufacturer in the automotive and commercial truck industries. This screw is integral to the assembly and maintenance of commercial trucks, providing secure fastening solutions that contribute to the overall reliability and performance of these vehicles.

Basic Concepts

Hexagon Flange Head Cap Screws are designed with a hexagonal head, which allows for efficient tightening and loosening using standard tools. The flange feature at the base of the screw head provides additional surface area, enhancing the screw’s ability to distribute load and resist rotation. These screws are typically made from high-strength materials such as alloy steel, which ensures durability and resistance to wear and tear. In the automotive industry, they are commonly used to secure various components, including engine parts, chassis elements, and body panels ¹.

Functionality and Operation

Within the context of a commercial truck, the Hexagon Flange Head Cap Screw plays a role in securing critical components and assemblies. Its design allows it to withstand significant tensile and shear forces, ensuring that parts remain firmly attached under various operating conditions. The screw’s hexagonal head facilitates easy and precise torque application, which is vital for maintaining the integrity of the fastened components.

Purpose of the 4325249 Hexagon Flange Head Cap Screw

This Cummins part is specifically designed to meet the demanding requirements of truck systems and assemblies. It is used in applications where high strength and resistance to loosening are required. This screw helps in maintaining the structural integrity of truck components, ensuring that they remain securely fastened during operation. Its application ranges from engine mounts to chassis components, highlighting its versatility and importance in truck maintenance and assembly.

Key Features

The primary characteristics of the 4325249 Hexagon Flange Head Cap Screw include its hexagonal head design, which allows for straightforward tool engagement, and its flange feature, which provides additional stability and load distribution. As a cap screw, it is designed to be fully threaded, enabling it to engage with through-holes or tapped holes in components, ensuring a secure and robust connection.

Benefits

Using the 4325249 Hexagon Flange Head Cap Screw offers several advantages. Its design enhances fastening security, reducing the risk of component loosening over time. The screw’s resistance to loosening is particularly beneficial in dynamic environments where vibrations and movements are common. Additionally, its durability ensures long-term performance, even in demanding conditions, contributing to the overall reliability of the truck.

Installation Guidelines

Proper installation of the 4325249 Hexagon Flange Head Cap Screw is critical for optimal performance. It should be installed using the appropriate torque specifications to ensure that it is tightened to the correct level without over-tightening, which could lead to damage. Best practices include using a torque wrench for accurate application and ensuring that the mating surfaces are clean and free from debris to facilitate a secure connection.

Troubleshooting and Maintenance

Common issues with the 4325249 Hexagon Flange Head Cap Screw may include loosening due to vibrations or corrosion. Regular inspection and maintenance can help identify these issues early. Maintenance strategies include periodic tightening to the specified torque and applying anti-seize compounds to prevent corrosion and facilitate easier removal if necessary. Additionally, replacing screws that show signs of wear or damage can help maintain the integrity of the fastened components.

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 has established a strong reputation for quality and innovation in the automotive and commercial truck industries. The company’s product offerings include a wide range of components and systems designed to enhance the performance, efficiency, and reliability of vehicles. Cummins’ commitment to excellence is reflected in its rigorous testing and quality control processes, ensuring that its products meet the highest standards of durability and performance.

Cummins Part 4325249 in Engine Applications

The Cummins part 4325249, a Hexagon Flange Head Cap Screw, is integral to the assembly and maintenance of several engine models. This screw is designed to provide secure fastening in environments where high torque and durability are essential.

ISF2.8 CM2220 F117 and ISV (Nissan)

In the ISF2.8 CM2220 F117 and ISV (Nissan) engines, the Hexagon Flange Head Cap Screw is used to secure various components, ensuring that parts remain tightly fastened under operational stresses. This screw is particularly useful in applications where vibration and movement are common, as it provides a reliable means of maintaining the integrity of the engine’s structure.

X12 CM2350 X119B

Similarly, in the X12 CM2350 X119B engine, the Hexagon Flange Head Cap Screw is employed to fasten critical components. Its design allows for easy installation and removal, which is crucial during routine maintenance and repairs. The screw’s flange head provides a larger surface area for better torque distribution, enhancing the overall stability and performance of the engine.

The use of the Hexagon Flange Head Cap Screw across these engines underscores its versatility and importance in maintaining the structural integrity and operational efficiency of the engine systems.

Part 4325249 Hexagon Flange Head Cap Screw Component Usage

The part 4325249 Hexagon Flange Head Cap Screw is integral to the secure assembly and operation of various engine components. Its robust design ensures reliable fastening in high-stress environments.

Arrangement and Mounting

In engine arrangement and mounting, the Hexagon Flange Head Cap Screw is used to fasten components securely to the engine block or frame. This includes securing the long block kit to the engine mounts, ensuring stability and proper alignment during operation.

Air Cleaner Plumbing and Compressor

For air cleaner plumbing and compressor systems, this screw plays a vital role in attaching the air intake components to the engine. It secures the air cleaner housing to the engine block, ensuring a tight seal that prevents air leaks. Similarly, in compressor systems, it is used to mount the compressor to the engine, maintaining the integrity of the air compression process.

Air and Water Inlet Connections

In air and water inlet connections, the Hexagon Flange Head Cap Screw is employed to fasten the inlet pipes to the engine. This includes securing the air inlet to the intake manifold and the water inlet connection to the engine block, ensuring efficient flow of air and coolant.

Alternator Attachment

The screw is also utilized in the attachment of the alternator to the engine. It ensures that the alternator is firmly mounted, allowing for stable operation and efficient power generation.

Overall, the part 4325249 Hexagon Flange Head Cap Screw is a versatile fastener that contributes to the secure and efficient operation of various engine components.

Conclusion

The 4325249 Hexagon Flange Head Cap Screw is a critical component in the assembly and maintenance of commercial trucks and engines. Its design, featuring a hexagonal head and flange, ensures secure fastening and resistance to loosening, even in dynamic and demanding environments. Proper installation and maintenance practices are essential to maximize the performance and longevity of this screw, contributing to the overall reliability and efficiency of the vehicles it serves.