3349187
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3349187, is a component manufactured by Cummins. This screw is significant in the realm of commercial truck maintenance due to its robust design and reliable performance. Cummins, a well-established name in the industry, ensures that this part meets high standards of quality and functionality, making it a preferred choice for securing various components in heavy-duty applications.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange beneath the head. The hexagonal head allows for efficient tightening and loosening using a wrench, while the flange provides additional surface area to distribute the load and prevent the screw from sinking into the material. This design is particularly beneficial in mechanical systems where secure fastening is crucial ¹.

Purpose and Role in Truck Operation

This Cummins part serves a specific purpose in commercial trucks by securing critical components that are subject to significant stress and vibration. It is commonly used to fasten engine parts, transmission components, and other heavy-duty assemblies. The screw’s design ensures that these components remain firmly in place, contributing to the overall stability and performance of the truck ².

Key Features

The 3349187 boasts several key features that enhance its functionality. Its hexagonal head design allows for easy and precise tightening, while the flange provides added stability and load distribution. The screw is typically made from high-strength materials, ensuring durability and resistance to wear and tear. Additionally, the screw’s threading is designed to provide a strong grip, minimizing the risk of loosening over time ³.

Benefits

Using the 3349187 offers several advantages. Its durable construction ensures long-lasting performance, even in demanding environments. The screw’s resistance to vibration helps maintain a secure fastening, reducing the likelihood of component failure. Furthermore, the ease of installation, thanks to its hexagonal head, allows for quick and efficient assembly, saving time during maintenance procedures.

Installation Process

Proper installation of the 3349187 is vital to ensure optimal performance and longevity. Begin by selecting the appropriate size and grade of screw for the application. Use a wrench to tighten the screw gradually, avoiding over-tightening which can lead to damage. Ensure that the flange is flush with the surface to distribute the load effectively. Finally, verify the torque specifications provided by the manufacturer to achieve the correct tension ⁴.

Common Applications

This Hexagon Flange Head Cap Screw is versatile and finds applications in various parts of commercial trucks. It is commonly used to secure engine components, transmission parts, and chassis assemblies. Its robust design makes it suitable for applications where high strength and reliability are required.

Troubleshooting and Maintenance

Regular inspection of the 3349187 is recommended to identify any signs of loosening or corrosion. If loosening is detected, re-tighten the screw to the specified torque. In cases of corrosion, clean the affected area and apply a suitable anti-corrosive treatment. Maintaining the screw in good condition ensures continued reliable performance and prevents potential failures.

Safety Considerations

When working with the 3349187, it is important to observe safety precautions. Use the appropriate tools to avoid damaging the screw or the surrounding components. Adhere to the torque specifications provided by the manufacturer to prevent over-tightening, which can lead to stripping or component damage. Additionally, ensure that the work area is clean and free from debris to avoid contamination during installation.

Cummins Overview

Cummins is a renowned manufacturer with a rich history in the automotive and heavy-duty truck industry. The company is known for its commitment to quality, innovation, and customer satisfaction. Cummins’ reputation is built on delivering reliable and high-performance components, making them a trusted choice for commercial truck applications. Their dedication to continuous improvement and technological advancement ensures that their products, including the 3349187, meet the rigorous demands of the industry.

Role of Part 3349187 in Engine Systems

Part 3349187, the Hexagon Flange Head Cap Screw, is instrumental in securing various components within engine systems, ensuring stability and efficient operation.

Heat Exchanger Applications

In heat exchangers, the Hexagon Flange Head Cap Screw is used to fasten critical components such as the tube sheets, baffles, and end covers. These components are essential for the efficient transfer of heat between fluids. The screw’s robust design ensures that these parts remain securely in place, even under high pressure and temperature conditions. This stability is vital for maintaining the structural integrity of the heat exchanger, thereby ensuring optimal performance and longevity.

General Engine System Integration

Across various engine systems, the Hexagon Flange Head Cap Screw plays a significant role in assembling and securing components that are subject to dynamic forces and vibrations. For instance, in the cylinder head assembly, these screws are used to attach the head to the engine block, ensuring a tight seal that is necessary for combustion efficiency. Similarly, in the valve train mechanism, they secure components like the camshaft and valve covers, contributing to the precise operation of the engine’s moving parts.

The screw’s flange head design provides additional surface area for distribution of clamping force, reducing the risk of component deformation and ensuring a more uniform load distribution. This feature is particularly beneficial in high-stress areas of the engine, where consistent and reliable fastening is paramount.

Conclusion

In summary, the 3349187 Hexagon Flange Head Cap Screw is a versatile and reliable component in engine systems, enhancing the stability and performance of critical assemblies such as heat exchangers and various engine components.