3641125
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3641125, is a specialized fastener produced by Cummins, a renowned manufacturer in the commercial truck industry. This screw is integral to the assembly and maintenance of various components within commercial trucks, ensuring secure and reliable fastening solutions.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt characterized by its hexagonal head and a flange beneath the head. 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 the material. Within a fastening system, this screw plays a role by securely joining components, resisting loosening due to vibration, and facilitating easy installation and removal ¹.

Purpose and Role in Truck Operation

This Cummins part is designed to play a specific role in the operation and maintenance of commercial trucks. It is commonly used in applications where secure fastening is required, such as in the attachment of engine components, chassis parts, and various structural elements. Its design ensures that critical components remain firmly in place, contributing to the overall reliability and safety of the truck.

Key Features

The 3641125 Hexagon Flange Head Cap Screw features a hexagonal head that allows for straightforward application of torque using common tools. The flange beneath the head provides additional bearing surface, which helps in distributing the load and preventing the screw from embedding into the material. Additionally, the screw is typically made from high-strength materials, ensuring durability and resistance to wear and corrosion.

Benefits

Using this part offers several advantages. Its design enhances durability, making it suitable for high-stress applications. The flange contributes to resistance against loosening, which is particularly important in environments where vibrations are common. Furthermore, the hexagonal head facilitates ease of installation and removal, reducing maintenance time and effort.

Installation and Usage

Proper installation of the 3641125 Hexagon Flange Head Cap Screw involves adhering to specific torque specifications to ensure the screw is tightened to the correct level without over-tightening, which could lead to damage. Best practices include using the appropriate tools and following a systematic approach to tightening, often in a criss-cross pattern to ensure even distribution of force.

Troubleshooting and Maintenance

Common issues with the 3641125 Hexagon Flange Head Cap Screw may include loosening or corrosion. Regular inspection and maintenance can help identify these issues early. If loosening is detected, re-tightening to the specified torque is recommended. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosive treatment can help maintain the screw’s performance and longevity.

Manufacturer - Cummins

Cummins is a well-established name in the commercial truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable components, Cummins has built a reputation for excellence. Their product line includes a wide range of parts designed to meet the demanding requirements of commercial trucks, underscoring their dedication to enhancing vehicle performance and durability.

Compatibility and Applications

This part is typically used in various applications within commercial trucks. It is compatible with a range of components, including engine parts, chassis elements, and structural assemblies. Ensuring compatibility with specific truck models and components is important for optimal performance and reliability.

Hexagon Flange Head Cap Screw (Part 3641125) in Cummins Engines

The Hexagon Flange Head Cap Screw, part number 3641125, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is designed to provide secure fastening in applications where a strong, reliable connection is essential.

Application in Cummins Engines

QSK45 CM500 and QSK60 CM500

In the QSK45 CM500 and QSK60 CM500 engines, the 3641125 screw is utilized in several key areas. These engines are known for their robust design and high performance, often used in heavy-duty applications. The screw’s flange head provides a large bearing surface, ensuring even distribution of pressure and preventing damage to the mating surfaces. This is particularly important in the high-stress environments these engines operate in.

QSK60 CM850 MCRS and QSK60 G CM2358 K110

For the QSK60 CM850 MCRS and QSK60 G CM2358 K110 engines, the 3641125 screw is integral to maintaining structural integrity. These engines are equipped with advanced technology to meet stringent emission standards while delivering exceptional power and efficiency. The screw’s design ensures that components remain tightly secured under varying operational conditions, contributing to the engine’s overall reliability and longevity.

QSK60G

The QSK60G engine also benefits from the use of the 3641125 screw. This engine is designed for versatility, offering a balance of power and efficiency suitable for a wide range of applications. The screw’s ability to provide a strong, stable connection is crucial in ensuring that all parts of the engine function harmoniously, enhancing performance and reducing the likelihood of mechanical failure.

Each of these engines relies on the 3641125 screw to maintain critical connections, ensuring that the engine operates smoothly and efficiently. The screw’s design and material properties make it an ideal choice for the demanding environments these engines encounter.

Role of Part 3641125 Hexagon Flange Head Cap Screw in Engine Systems

In the intricate assembly of engine systems, the 3641125 Hexagon Flange Head Cap Screw serves as a vital fastening component. Its application spans across various critical components, ensuring structural integrity and operational efficiency.

Block Assembly

Within the block assembly, the Hexagon Flange Head Cap Screw is instrumental in securing the block to its foundational mounts. This secure attachment is essential for maintaining the block’s alignment and stability during engine operation, thereby contributing to the overall durability and performance of the engine.

Cylinder and Crankshaft Integration

The screw plays a significant role in the integration of the cylinder with the crankshaft and bearings. By firmly attaching these components, it ensures smooth rotational motion and minimizes friction, which is vital for the engine’s efficiency and longevity.

Cylinder Block and Hardware Kit

In the cylinder block, particularly when utilizing a cylinder block hardware kit, the Hexagon Flange Head Cap Screw is used to fasten various components securely. This includes the attachment of the cylinder block kit, where precise and robust fastening is required to withstand the high pressures and temperatures within the engine.

Gear Housing Attachment

The screw is also employed in the attachment of the gear housing. Secure fastening in this area is crucial for the proper functioning of the gear system, which is responsible for transmitting power throughout the engine.

Piston Cooling Nozzle Kit

Lastly, in the piston cooling nozzle kit, the Hexagon Flange Head Cap Screw ensures that the cooling nozzles are firmly in place. This is important for the effective dissipation of heat from the pistons, contributing to the engine’s thermal management and overall performance.

Conclusion

The 3641125 Hexagon Flange Head Cap Screw is a critical component in the assembly and maintenance of commercial trucks and Cummins engines. Its design, featuring a hexagonal head and flange, ensures secure fastening, resistance to loosening, and ease of installation and removal. Proper installation and regular maintenance are essential to ensure the screw’s performance and longevity, contributing to the overall reliability and safety of the vehicle.