3922639
Studded Flange Cap Screw
Cummins®

The 3922639 Studded Flange Cap Screw is a specialized fastener produced by Cummins, a well-established manufacturer in the commercial truck industry. This screw is designed for use in commercial trucks, where it plays a role in securing various components and ensuring the structural integrity of the vehicle.

Basic Concepts of Studded Flange Cap Screws

A studded flange cap screw is a type of fastener that combines the features of a stud and a flanged bolt. It is commonly used in mechanical assemblies to secure components that require a high degree of stability and resistance to vibration. The studded design allows for easy installation and removal, while the flange provides additional surface area for load distribution and prevents the screw from turning when tightened ¹.

Role in Truck Operation

In the context of commercial trucks, the 3922639 Studded Flange Cap Screw is utilized in areas where secure fastening is necessary to maintain structural integrity and operational efficiency. It is often found in engine components, chassis assemblies, and other critical areas where vibrations and dynamic loads are present. The screw helps to ensure that components remain firmly in place, reducing the risk of failure or malfunction ².

Key Features

The 3922639 Studded Flange Cap Screw is characterized by several key features that enhance its performance and durability. It is made from high-strength materials, typically alloy steel, which provides excellent resistance to wear and corrosion. The threading type is designed to offer a secure grip, while the flange design distributes loads more evenly across the surface, reducing stress concentrations. Additionally, the screw may have unique attributes such as a corrosion-resistant coating or specialized threading to further improve its functionality ³.

Benefits

The benefits of using the 3922639 Studded Flange Cap Screw include improved load distribution, which helps to prevent component failure under stress. The design also enhances fastening security, making it less likely for the screw to loosen over time. Furthermore, its resistance to vibration and corrosion ensures long-term reliability in demanding truck applications ⁴.

Installation Guidelines

Proper installation of the 3922639 Studded Flange Cap Screw is vital for optimal performance. It should be installed using the correct torque specifications to ensure that it is tightened to the appropriate level without over-tightening, which could damage the screw or the components it is securing. Recommended tools include a torque wrench and appropriate socket or spanner. Best practices involve cleaning the installation area to remove any debris or corrosion, applying a thread locker if necessary, and checking the screw periodically for signs of loosening or wear.

Troubleshooting and Maintenance

Common issues with studded flange cap screws include loosening due to vibration and corrosion, which can compromise the fastening integrity. Regular inspections should be conducted to identify any signs of wear, corrosion, or loosening. Maintenance tips include reapplying thread locker as needed, ensuring that the screw is properly torqued, and replacing the screw if significant corrosion or damage is detected.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the commercial truck industry, Cummins is known for its high-quality and reliable products. The company’s extensive product range and commitment to innovation ensure that components like the 3922639 Studded Flange Cap Screw meet the rigorous demands of commercial truck applications.

Application of Studded Flange Cap Screw in Cummins Engines

The Studded Flange Cap Screw part number 3922639, manufactured by Cummins, is a critical component in various Cummins engine models. This part is designed to secure flanges and other components, ensuring the integrity and functionality of the engine’s structure. Below is a detailed description of how this part fits into different Cummins engine models:

6C8.3 and C8.3 G Engines

In the 6C8.3 and C8.3 G engines, the Studded Flange Cap Screw is used to fasten critical components such as the turbocharger flanges, exhaust manifolds, and other mounting points. These engines often require robust and reliable fastening solutions to withstand the high pressures and temperatures typical of diesel engines.

G8.3 and G8.3 CM558 Engines

For the G8.3 and G8.3 CM558 engines, the Studded Flange Cap Screw plays a pivotal role in securing the engine’s exhaust system components. These engines benefit from the enhanced grip and stability provided by the studded design, ensuring that the exhaust system remains securely fastened under operational stresses.

GTA8.3 CM558 and QSL9 G CM558 Engines

In the GTA8.3 CM558 and QSL9 G CM558 engines, the Studded Flange Cap Screw is utilized for fastening various flanges and brackets. These engines, often used in heavy-duty applications, require a fastening solution that can endure significant mechanical stress and vibrations, making the studded design ideal.

ISL G CM2180 and L GAS PLUS CM556 Engines

The ISL G CM2180 and L GAS PLUS CM556 engines incorporate the Studded Flange Cap Screw in the assembly of their intake and exhaust systems. The studded design provides an additional layer of security, ensuring that these components remain tightly fastened, which is crucial for maintaining engine performance and efficiency.

L8.9G CMOH2.0 L125B and L9.3 L105 Engines

For the L8.9G CMOH2.0 L125B and L9.3 L105 engines, the Studded Flange Cap Screw is used in the mounting of various engine components, including the cylinder heads and other critical assemblies. The studded design ensures that these components are securely fastened, which is essential for the overall reliability and longevity of the engine.

Each of these engines relies on the Studded Flange Cap Screw to maintain structural integrity and ensure that all components are securely fastened, contributing to the overall performance and durability of the engine.

Role of Part 3922639 Studded Flange Cap Screw in Engine Systems

The Part 3922639 Studded Flange Cap Screw is an essential component in various engine systems, facilitating secure and reliable connections between different parts. Its primary function is to ensure that components remain firmly attached, thereby maintaining the integrity and efficiency of the engine.

Integration with Valve Covers

In engine systems, the Studded Flange Cap Screw is commonly used to attach valve covers. The valve cover, also known as the rocker cover, is a critical part that encloses the valve train components, including camshafts, rocker arms, and valve springs. The Studded Flange Cap Screw provides a robust fastening mechanism that ensures the valve cover remains securely in place. This is important for preventing oil leaks and protecting internal components from contaminants.

Securing Valve Arrangements

Valve arrangements within an engine require precise alignment and secure fastening to function correctly. The Studded Flange Cap Screw plays a significant role in this context by providing a strong and stable connection between the valve components and the engine block or head. This ensures that the valves operate within their specified parameters, contributing to the overall performance and reliability of the engine.

Enhancing Cover Stability

Covers in engine systems, such as timing covers or accessory covers, need to be securely fastened to protect internal components and maintain proper lubrication. The Studded Flange Cap Screw is often employed to attach these covers, ensuring they remain in position under various operating conditions. This stability is vital for the longevity and efficiency of the engine, as it prevents undue stress on the covers and the components they protect.

Supporting Comprehensive Engine Assembly

Beyond individual components, the Studded Flange Cap Screw supports the comprehensive assembly of the engine. By providing a dependable fastening solution, it helps in maintaining the structural integrity of the engine, allowing for smooth operation and reduced maintenance requirements. Its role in connecting various parts ensures that the engine can withstand the dynamic forces and temperatures it encounters during operation.

Conclusion

The 3922639 Studded Flange Cap Screw is a critical component in the operation and maintenance of commercial trucks and Cummins engines. Its design, featuring a studded and flanged structure, provides enhanced stability, resistance to vibration, and secure fastening. The use of high-strength materials and specialized threading ensures durability and reliability in demanding applications. Proper installation and maintenance practices are essential to maximize the performance and longevity of this Cummins part.