3349510
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, Part #3349510 by Cummins, is a specialized fastener designed for robust fastening applications, particularly in the commercial truck industry. This screw is engineered to provide secure and reliable fastening in environments where durability and resistance to vibration are paramount. Its design and functionality are tailored to meet the demanding requirements of heavy-duty truck operations.

Basic Concepts and Functionality

A Hexagon Flange Head Cap Screw is characterized by its hexagonal head, which allows for secure fastening using a wrench or socket. The flange, a widened section under the head, provides a larger bearing surface. This design distributes the load more evenly and prevents the screw from being driven too far into the material. The combination of the hexagonal head and flange makes this screw particularly effective in applications where high torque and secure fastening are required ¹.

Role in Truck Operation

This Cummins part plays a significant role in the operation of commercial trucks. It is used to secure various components and assemblies, ensuring the structural integrity and proper function of truck systems. This includes fastening engine components, chassis parts, and other critical assemblies where vibration and load are constant factors. The screw’s design helps maintain the alignment and stability of these components, contributing to the overall reliability and performance of the truck ².

Key Features

The 3349510 boasts several key features that enhance its performance and durability in heavy-duty applications. It is typically made from high-strength materials such as alloy steel, which provides excellent tensile strength and resistance to wear. The screw features a coarse or fine thread, depending on the application, allowing it to grip securely into various materials. Additionally, it may have special coatings or treatments, such as zinc plating or black oxide, to improve corrosion resistance and longevity ³.

Benefits

The benefits of using the 3349510 include improved fastening security, resistance to loosening under vibration, and enhanced load distribution. The hexagonal head allows for high torque application without rounding off, while the flange prevents over-tightening and provides a stable base. These features make the screw ideal for applications where reliability and durability are critical.

Troubleshooting and Maintenance

To ensure the longevity and reliable performance of the 3349510, regular maintenance and troubleshooting are necessary. Common issues such as loosening or corrosion can be addressed by periodically checking the tightness of the screw and applying a suitable anti-seize compound if necessary. In cases of corrosion, cleaning the screw and surrounding area, followed by reapplication of the appropriate coating, can help prevent further degradation. Regular inspections and maintenance will help identify and resolve potential issues before they lead to more significant problems.

About Cummins

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 expertise in diesel engines and related technologies. The company is committed to providing high-quality components for the commercial truck industry, ensuring that their products meet the rigorous demands of heavy-duty applications. Cummins’ dedication to innovation and quality makes them a trusted name in the industry.

Cummins Hexagon Flange Head Cap Screw Part 3349510 in Engine Applications

The Cummins Hexagon Flange Head Cap Screw, part number 3349510, is a critical component in the assembly and maintenance of various Cummins engines. This part is designed to secure and hold engine components together, ensuring stability and integrity during operation.

QSM11 Engines

In the QSM11 engine series, the 3349510 screw is utilized in several key areas. It is often found in the engine’s head assembly, where it helps to secure the cylinder head to the engine block. This ensures that the combustion chambers remain sealed and that the engine operates efficiently. Additionally, this screw is used in other critical areas such as the valve cover and timing cover, where it plays a role in maintaining the structural integrity of these components.

CM570 Engines

For the CM570 engine series, the 3349510 screw is similarly essential. It is frequently used in the engine’s head assembly to secure the cylinder head, ensuring that the engine’s combustion process is not compromised. Furthermore, this screw is employed in various other parts of the engine, such as the intake manifold and exhaust manifold, where it helps to maintain the alignment and stability of these components. Its use in these areas is crucial for the engine’s overall performance and longevity.

Grouping of Engines

When considering the use of the 3349510 screw across different engine models, it is evident that its role is consistent in ensuring the secure assembly of critical engine components. Whether in the QSM11 or CM570 series, this screw is integral to maintaining the engine’s structural integrity and operational efficiency. Its application in various parts of the engine underscores its importance in the overall functionality and reliability of Cummins engines.

Role of Part 3349510 Hexagon Flange Head Cap Screw in Engine Systems

Part 3349510, the Hexagon Flange Head Cap Screw, is integral to the assembly and functionality of various engine components. Its design and specifications make it particularly suitable for applications where secure fastening and resistance to vibration are required.

Heat Exchanger

In the heat exchanger, the Hexagon Flange Head Cap Screw is used to fasten the plates and fins securely. This ensures efficient heat transfer between the fluids. The flange head provides a larger surface area for distribution of the clamping force, reducing the risk of damage to the delicate fins and plates. Additionally, the hexagonal socket allows for easy and precise tightening, which is essential in maintaining the integrity of the heat exchanger under varying thermal conditions.

Conclusion

The 3349510 Hexagon Flange Head Cap Screw by Cummins is a vital component in the commercial truck industry, providing secure and reliable fastening in demanding environments. Its design, featuring a hexagonal head and flange, ensures high torque application and even load distribution, making it ideal for heavy-duty applications. Regular maintenance and troubleshooting are essential to ensure its longevity and performance. Cummins’ commitment to quality and innovation underscores the reliability of this part in various engine applications, particularly in the QSM11 and CM570 engine series.

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