3641729
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #3641729 and manufactured by Cummins, is a specialized fastener designed for use in commercial truck applications. This screw is significant in the trucking industry due to its robust design and reliable performance. Its hexagonal head allows for secure tightening and loosening, while the flange provides additional surface area for distribution of clamping force. Commonly, this screw is used to secure various components and assemblies within a truck’s mechanical system, ensuring stability and durability under demanding conditions.

Basic Concepts

The Hexagon Flange Head Cap Screw is constructed with a hexagonal head, a flange, and a threaded shank. The hexagonal head design facilitates the use of a wrench for installation and removal, offering a secure grip. The flange at the base of the head serves to distribute the clamping force over a larger area, reducing the risk of damage to the fastened material. Typically, these screws are made from high-strength steel or stainless steel, materials chosen for their durability and resistance to corrosion. Within a truck’s mechanical system, the screw functions by securely fastening components, ensuring they remain in place under various operational stresses ¹.

Purpose and Role in Truck Operation

The Hexagon Flange Head Cap Screw (Part #3641729) plays a specific role in the operation of a truck by securing various components and assemblies. It is often used in applications where a high degree of stability and resistance to vibration is required. For instance, it may be employed in fastening engine components, securing chassis parts, or attaching body panels. Its design ensures that these critical components remain firmly in place, contributing to the overall safety and performance of the vehicle ².

Key Features

Several key features contribute to the effectiveness and reliability of the Hexagon Flange Head Cap Screw. The hexagonal head allows for precise and secure tightening using a wrench, minimizing the risk of slippage. The flange provides additional surface area for the distribution of clamping force, enhancing the screw’s ability to hold components securely. Additionally, the cap screw functionality ensures that the screw can be driven into place without the need for a separate nut, streamlining the installation process ³.

Benefits

Using the Hexagon Flange Head Cap Screw in truck maintenance and assembly offers several benefits. The design of the screw enhances security by providing a stable and reliable fastening solution. The ease of installation, facilitated by the hexagonal head and cap screw functionality, allows for efficient assembly and repair processes. Furthermore, the durability of the materials used ensures that the screw can withstand the rigors of commercial truck operation, contributing to the longevity and reliability of the fastened components ⁴.

Installation and Usage

Proper installation of the Hexagon Flange Head Cap Screw is critical to ensuring its effectiveness. It is recommended to use the appropriate torque specifications provided by the manufacturer to achieve the correct clamping force without over-tightening, which could damage the screw or the fastened material. Best practices include using a torque wrench for installation and periodically checking the tightness of the screw during maintenance to ensure it remains secure ⁵.

Troubleshooting and Maintenance

Common issues with the Hexagon Flange Head Cap Screw may include loosening over time due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues before they lead to more significant problems. Maintenance tips include periodically checking the tightness of the screw, cleaning and inspecting the screw and surrounding area for signs of corrosion, and replacing the screw if it shows signs of wear or damage.

Cummins: Manufacturer Overview

Cummins is a well-respected manufacturer in the automotive and heavy-duty truck industry, known for its commitment to quality and innovation. With a history of producing reliable and high-performance components, Cummins has established a strong reputation for excellence. The company’s dedication to research and development ensures that its products, including the Hexagon Flange Head Cap Screw, meet the demanding requirements of commercial truck applications. Cummins’ focus on quality and customer satisfaction underscores its position as a leading manufacturer in the industry.

Hexagon Flange Head Cap Screw (Part 3641729) in Cummins Engines

The Hexagon Flange Head Cap Screw, identified by the part number 3641729, is a critical component in several Cummins engine models. This part is integral to the assembly and operation of the engines, ensuring secure fastening and structural integrity.

Application in Cummins Engines

QSK38 CM2150 MCRS and QSK50 CM2150 MCRS

In the QSK38 CM2150 MCRS and QSK50 CM2150 MCRS engines, the 3641729 screw is utilized in various applications where a robust and reliable fastening solution is required. These engines, known for their high performance and durability, benefit from the precision and strength of this screw. It is commonly used in areas that require a secure connection, such as attaching engine components or securing covers.

QSK50 CM2350 K108

Similarly, the QSK50 CM2350 K108 engine incorporates the 3641729 screw in its design. This engine, part of Cummins’ lineup, leverages the screw’s ability to withstand high stress and maintain a tight fit. The screw’s flange head design provides a larger surface area for better torque distribution, which is essential in maintaining the structural integrity of the engine components.

Importance of the Hexagon Flange Head Cap Screw

The use of the 3641729 screw in these engines underscores its importance in ensuring the engines’ operational efficiency and longevity. The screw’s design allows for easy installation and removal, which is crucial during maintenance and repair processes. Its ability to maintain a secure fastening under various operating conditions makes it a preferred choice for these high-performance engines.

Role of Part 3641729 Hexagon Flange Head Cap Screw in Engine Systems

In the intricate assembly of engine systems, the part 3641729 Hexagon Flange Head Cap Screw serves as a vital fastening component. Its primary function is to secure various engine components, ensuring they remain firmly in place under the demanding conditions of engine operation.

Pan Assembly

Within the pan assembly, the Hexagon Flange Head Cap Screw is instrumental in attaching the pan to the engine block. This secure attachment is essential for maintaining the integrity of the oil reservoir. The screw’s design allows for a tight seal, preventing oil leaks that could lead to engine damage or performance issues. Additionally, the flange head provides a larger surface area for distribution of clamping force, enhancing the stability of the pan attachment.

Oil System Components

In the oil system, the Hexagon Flange Head Cap Screw is used to fasten oil filters, oil pump components, and various brackets and mounts. These applications require a screw that can withstand high pressures and vibrations without loosening. The flange head design of the screw ensures a robust connection, minimizing the risk of detachment which could interrupt oil flow and lead to engine overheating. Furthermore, the hexagonal socket allows for easy and precise tightening, ensuring that all components are secured to the manufacturer’s specifications.

Conclusion

Overall, the part 3641729 Hexagon Flange Head Cap Screw plays a significant role in maintaining the structural integrity and operational efficiency of engine systems by providing reliable fastening solutions across various components. Its robust design, ease of installation, and durability make it an essential component in the assembly and maintenance of commercial truck engines.