3349461
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3349461, is a component manufactured by Cummins, a well-respected name in the automotive and heavy-duty truck industry. This screw plays a significant role in the assembly and maintenance of commercial trucks, ensuring secure fastening in various applications. Cummins is renowned for its commitment to quality and innovation, making this screw a reliable choice for truck operators and maintenance professionals.

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 tightening and loosening using a wrench or socket, while the flange provides additional surface area to distribute load and prevent the screw from sinking into softer materials. Within a truck’s mechanical system, these screws are used to secure components, ensuring structural integrity and proper function.

Purpose and Role in Truck Operation

The 3349461 Hexagon Flange Head Cap Screw is designed for specific applications within truck operations. It is commonly used in areas where a combination of strong fastening and resistance to vibration is required. This includes securing engine components, transmission parts, and various chassis elements. The screw’s design ensures that it remains tightly fastened even under the dynamic conditions experienced by commercial trucks.

Key Features

The 3349461 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and reliability. Its hexagonal head design allows for easy and precise tightening using standard tools. The flange at the base of the screw provides additional gripping surface, which helps in distributing the load more evenly and reducing the risk of the screw pulling through the material. Additionally, the screw is made from high-quality materials, ensuring durability and resistance to corrosion, which is vital for long-term use in demanding environments.

Benefits

Using the 3349461 Hexagon Flange Head Cap Screw offers several advantages. Its robust construction and high-quality materials contribute to its durability, making it suitable for long-term use in harsh conditions. The flange design enhances resistance to loosening, which is particularly important in applications where vibrations are common. Furthermore, the screw’s design allows for ease of installation, reducing the time and effort required during maintenance procedures.

Installation Process

Proper installation of the 3349461 Hexagon Flange Head Cap Screw is crucial for ensuring its effectiveness and longevity. The installation process involves several steps: first, ensure that the mating surfaces are clean and free of debris. Next, align the screw with the designated hole and begin threading it by hand to avoid cross-threading. Once the screw is started, use a wrench or socket to tighten it to the specified torque. It is important to follow the torque specifications provided by the manufacturer to ensure that the screw is neither over-tightened nor under-tightened, both of which can lead to issues.

Troubleshooting and Maintenance

To ensure the longevity and performance of the 3349461 Hexagon Flange Head Cap Screw, regular maintenance and troubleshooting are necessary. Common issues may include loosening due to vibration or corrosion. Regular inspections should be conducted to check for signs of wear or damage. If corrosion is detected, the affected area should be cleaned, and an appropriate anti-corrosion treatment should be applied. In cases where the screw has loosened, it should be re-tightened to the specified torque. If significant damage is observed, replacement may be necessary to maintain the integrity of the fastening.

Cummins: Manufacturer Overview

Cummins is a leading manufacturer in the automotive and heavy-duty truck industry, known for its high-quality components and innovative solutions. With a rich history of providing reliable and durable products, Cummins has established a strong reputation among truck operators and maintenance professionals. The company’s commitment to quality is evident in its rigorous testing and quality control processes, ensuring that each component, including the 3349461 Hexagon Flange Head Cap Screw, meets the highest standards of performance and reliability.

Cummins Engine Part 3349461: Hexagon Flange Head Cap Screw

The Cummins part 3349461, a Hexagon Flange Head Cap Screw, is a critical component in the assembly and maintenance of several Cummins engine models. This part is designed to provide secure fastening in various engine applications, ensuring the integrity and performance of the engine.

Application in Cummins Engines

QSK78 CM500 and QSM11 CM570

The Hexagon Flange Head Cap Screw (part 3349461) is integral to the assembly of the QSK78 CM500 and QSM11 CM570 engines. These engines are part of Cummins’ lineup of high-performance, heavy-duty diesel engines, known for their reliability and efficiency in demanding applications. The screw is used in several key areas within these engines, including:

• Cylinder Head Assembly: Ensuring the cylinder heads are securely fastened to the engine block, preventing leaks and maintaining compression.
• Turbocharger Mounting: Providing a reliable connection between the turbocharger and the engine, which is crucial for maintaining optimal turbo performance.
• Exhaust Manifold: Securing the exhaust manifold to the engine block, ensuring a tight seal to prevent exhaust leaks and maintain engine efficiency.

The use of the Hexagon Flange Head Cap Screw in these engines highlights its importance in maintaining the structural integrity and operational efficiency of the engine. The screw’s design, featuring a hexagonal head and flange, allows for easy and secure tightening with standard tools, facilitating efficient maintenance and repair processes.

Role of Part 3349461 Hexagon Flange Head Cap Screw in Engine Systems

Aftercooler

In the aftercooler system, the part 3349461 hexagon flange head cap screw is instrumental in securing various components. It is commonly used to fasten the aftercooler to the engine block or other structural elements, ensuring a stable and leak-free connection. This screw helps maintain the integrity of the cooling system by providing a robust attachment point for the aftercooler’s housing. Additionally, it plays a role in securing the inlet and outlet connections, which are vital for the efficient flow of air through the aftercooler. Proper installation of this screw ensures that the aftercooler operates within optimal parameters, contributing to the overall performance and reliability of the engine.

Turbocharger Arrangement

Within the turbocharger arrangement, the part 3349461 hexagon flange head cap screw is utilized to secure the turbocharger to the engine block or exhaust manifold. This screw is essential in maintaining the precise alignment of the turbocharger, which is necessary for efficient operation. It also plays a role in attaching the turbocharger’s housing to the engine, ensuring that there are no gaps or leaks that could compromise performance. Furthermore, this screw is used in securing the turbocharger’s mounting brackets and other ancillary components, providing a stable foundation for the turbocharger to function effectively. The secure attachment facilitated by this screw is vital for withstanding the high stresses and temperatures associated with turbocharger operation.

Conclusion

The 3349461 Hexagon Flange Head Cap Screw is a vital component in the assembly and maintenance of Cummins engines, particularly in the QSK78 CM500 and QSM11 CM570 models. Its robust design, featuring a hexagonal head and flange, ensures secure fastening and resistance to vibration, making it suitable for demanding applications. Proper installation and regular maintenance are essential to ensure the longevity and performance of this screw, contributing to the overall reliability and efficiency of the engine systems it supports.