5266684
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 5266684, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is significant in the assembly and maintenance of commercial trucks, providing reliable fastening solutions that contribute to the overall integrity and performance of truck components ¹.

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 softer materials. In a truck’s assembly, this screw plays a role in securing various components, ensuring they remain firmly in place under operational stresses ².

Purpose and Role in Truck Operation

The 5266684 Hexagon Flange Head Cap Screw is utilized in multiple applications within commercial trucks. It is commonly employed in fastening engine components, chassis parts, and other critical assemblies where secure and stable connections are required. Its design ensures that components remain aligned and securely attached, which is vital for the truck’s operational efficiency and safety ³.

Key Features

The 5266684 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise torque application. The flange at the base of the screw head provides additional bearing surface, enhancing stability and preventing the screw from pulling through the material. Constructed from high-strength materials, this screw is designed to withstand significant loads and resist corrosion, contributing to its durability in demanding truck environments ¹.

Benefits

Using the 5266684 Hexagon Flange Head Cap Screw in truck assemblies offers several advantages. The hexagonal head design allows for efficient and consistent torque application, reducing the risk of over-tightening or under-tightening. The flange enhances stability by distributing the load more evenly, which helps prevent the screw from loosening over time. Additionally, the material composition of the screw provides resistance to corrosion and wear, ensuring long-lasting performance in various truck applications ².

Installation Guidelines

Proper installation of the 5266684 Hexagon Flange Head Cap Screw is crucial for optimal performance. Begin by ensuring the mating surfaces are clean and free of debris. Align the screw with the designated hole and start threading it by hand to avoid cross-threading. Use a torque wrench to apply the recommended torque specification, which ensures the screw is tightened to the correct level without over-tightening. Regularly check the screw’s tightness during initial use to confirm it remains secure ³.

Troubleshooting and Maintenance

Common issues with the 5266684 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion. To address these issues, regularly inspect the screw for signs of wear or damage. If corrosion is present, consider using a corrosion-resistant coating or replacing the screw. For loosening, re-torque the screw to the specified level and ensure the flange is in full contact with the surface to enhance stability. Scheduled maintenance checks can help identify and resolve issues before they lead to more significant problems ¹.

Safety Considerations

When handling and working with the 5266684 Hexagon Flange Head Cap Screw, it is important to follow safety guidelines. Use appropriate personal protective equipment (PPE), such as gloves and safety glasses, to protect against injuries. Ensure that tools are in good condition and suitable for the task. Adhere to manufacturer recommendations for torque specifications and installation procedures to avoid accidents and ensure the screw performs as intended ².

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance truck components, Cummins has established a reputation for excellence. The company’s dedication to advancing technology and maintaining stringent quality control processes ensures that its products, including the 5266684 Hexagon Flange Head Cap Screw, meet the demanding requirements of commercial truck applications ³.

Cummins Engine Part 5266684: Hexagon Flange Head Cap Screw

The Cummins part number 5266684, a Hexagon Flange Head Cap Screw, is a critical component in the assembly and maintenance of certain Cummins engines. This part is designed to secure various components within the engine, ensuring structural integrity and operational efficiency.

Application in ISC8.3 CM2250 and ISL9 CM2250 Engines

The ISC8.3 CM2250 and ISL9 CM2250 engines both utilize the 5266684 Hexagon Flange Head Cap Screw in several key areas. These engines are part of Cummins’ lineup, known for their robust performance and reliability in various industrial and commercial applications.

ISC8.3 CM2250 Engine:

• Turbocharger Mounting: This screw is often used in securing the turbocharger to the engine block, ensuring that the turbocharger remains firmly in place under high-stress conditions.
• Exhaust Manifold Attachment: It is also employed in attaching the exhaust manifold to the engine, which is crucial for maintaining the exhaust system’s integrity and performance.

ISL9 CM2250 Engine:

• Valve Cover Fastening: In the ISL9 CM2250 engine, the 5266684 screw is used to fasten the valve covers, protecting the internal components from debris and ensuring a proper seal.
• Oil Pan Attachment: Another application is in securing the oil pan to the engine block, which is essential for containing the engine oil and preventing leaks.

Both engines benefit from the use of this screw due to its high strength and durability, which are critical for withstanding the operational stresses and temperatures encountered in these engines. The hexagonal flange head design provides a secure grip and ease of use during assembly and maintenance procedures ¹.

Role of Part 5266684 Hexagon Flange Head Cap Screw in Engine Systems

The part 5266684 Hexagon Flange Head Cap Screw is integral in securing various components within engine systems. Its design allows for efficient torque transfer and reliable fastening, ensuring that parts remain securely in place under operational stress ².

Shield Assembly Integration

In engine systems, the shield serves multiple purposes, including protection against heat, debris, and moisture. The Hexagon Flange Head Cap Screw is often used to mount these shields to the engine frame or other structural components. This ensures that the shield remains firmly in position, providing consistent protection throughout the engine’s operation. The screw’s flange head design offers additional surface area for a more secure fit, reducing the risk of vibration-induced loosening ³.

Heat Management Components

Effective heat management is vital for the longevity and performance of engine systems. Components such as heat exchangers, radiators, and intercoolers rely on precise mounting to function correctly. The Hexagon Flange Head Cap Screw plays a significant role in this aspect by securing these heat management components to their respective positions. Its robust construction ensures that these parts withstand thermal expansion and contraction cycles without shifting, maintaining optimal heat dissipation and engine cooling efficiency ¹.

General Application Across Engine Systems

Beyond specific components like shields and heat management systems, the Hexagon Flange Head Cap Screw is widely used throughout engine assemblies. It secures intake and exhaust manifolds, mounts sensors and actuators, and fastens various brackets and supports. Its versatility and reliability make it a go-to fastening solution for engineers and mechanics working on engine systems ².

Conclusion

In summary, the part 5266684 Hexagon Flange Head Cap Screw is a fundamental component in the assembly and maintenance of engine systems, ensuring that critical parts remain securely fastened and operationally efficient. Its design and material composition contribute to the overall reliability and performance of commercial truck engines ³.