3930991
Hexagon Flange Head Cap Screw
Cummins®

The Cummins Hexagon Flange Head Cap Screw, part number 3930991, is a critical component in the automotive and heavy-duty truck industry. Manufactured by Cummins, this part is renowned for its robust design and reliable performance, contributing to the efficiency and durability of truck operations.

Basic Concepts

A Hexagon Flange Head Cap Screw is characterized by its hexagonal head and flange, which provides additional surface contact and enhances stability and resistance to rotation. This design allows for efficient tightening and loosening using a wrench or socket. In mechanical systems, these screws secure components together, ensuring structural integrity and proper function.

Purpose and Role in Truck Operation

This Cummins part plays a significant role in heavy-duty trucks by securing various components critical to the truck’s performance. It is used to fasten engine parts and chassis components, ensuring they remain firmly in place under demanding conditions. The screw’s design and material properties make it suitable for areas exposed to significant stress and vibration.

Key Features

The 3930991 boasts several key features that enhance its functionality and reliability. Its hexagonal flange head design allows for easy and secure tightening, while its material composition ensures durability and resistance to corrosion. The threading specifications provide a strong grip and secure fastening, making it ideal for heavy-duty applications.

Benefits

The benefits of the 3930991 include enhanced fastening security, resistance to loosening, and durability in demanding environments. Its design ensures components remain securely fastened, even under vibration and stress, which is crucial for the safe and efficient operation of heavy-duty trucks. Additionally, its resistance to corrosion extends the lifespan of the screw, reducing maintenance needs and enhancing overall truck reliability.

Installation Guidelines

Proper installation of the 3930991 is crucial for ensuring its effectiveness and longevity. Installation should be conducted using appropriate tools, such as a torque wrench, to achieve the recommended torque specifications. This ensures the screw is tightened to the correct level, providing a secure fastening without over-tightening, which could damage the screw or the components being fastened.

Maintenance and Troubleshooting

To ensure optimal performance of the 3930991, regular maintenance is recommended. This includes checking for signs of loosening or corrosion and tightening or replacing the screw as necessary. Common troubleshooting techniques for issues such as loosening involve re-torquing the screw to the manufacturer’s specifications, while corrosion may require cleaning or replacement of the affected screw.

Safety Considerations

When working with the 3930991, it is important to observe safety precautions to prevent injury and ensure the screw’s proper function. This includes using the correct tools for installation and maintenance, wearing appropriate personal protective equipment, and following proper handling, storage, and disposal practices to maintain the screw’s integrity and safety.

Cummins Overview

Cummins is a renowned manufacturer in the automotive industry, known for producing high-quality engines and components for heavy-duty trucks and other applications. The company’s product offerings include a wide range of engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of the industry. Cummins’ reputation for quality, reliability, and innovation makes it a trusted choice for professionals in the automotive and heavy-duty truck sectors.

Cummins Hexagon Flange Head Cap Screw 3930991 in Engine Applications

The Cummins Hexagon Flange Head Cap Screw, part number 3930991, is a critical component in the assembly and maintenance of various Cummins engines. This part is designed to secure different engine parts, ensuring structural integrity and operational efficiency. Below is a detailed overview of how this screw fits into specific Cummins engine models.

6C8.3 Engine

The 6C8.3 engine is a robust and reliable power unit often utilized in heavy-duty applications. The Hexagon Flange Head Cap Screw 3930991 plays a pivotal role in this engine’s assembly. It is used to fasten critical components, ensuring that they remain securely in place under the demanding conditions these engines often encounter. The screw’s design, featuring a hexagonal head, allows for efficient torque application, which is essential for maintaining the engine’s operational integrity.

Grouping of Engines

In the broader context of Cummins engine applications, the Hexagon Flange Head Cap Screw 3930991 is a versatile component that finds use across multiple engine models. Its design and material properties make it suitable for environments where high strength and durability are required. The screw’s flange head provides a larger surface area for the application of tools, which is particularly beneficial in tight engine spaces where access may be limited.

The use of this screw in various engine models underscores its importance in ensuring the reliability and performance of Cummins engines. Its consistent application across different models highlights the standardized approach Cummins takes in engine design and manufacturing, ensuring that critical components like the Hexagon Flange Head Cap Screw are optimized for their specific roles.

Hexagon Flange Head Cap Screw in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 3930991, is integral to the assembly and secure operation of various engine components.

Mounting Applications

In engine mounting applications, the Hexagon Flange Head Cap Screw is employed to fasten the engine to its mounts. This secure attachment is essential for maintaining the engine’s position within the vehicle’s chassis, ensuring stability and reducing vibrations during operation. The flange head design provides a larger surface area for distribution of clamping force, which enhances the screw’s ability to hold the mounting brackets firmly in place.

Alternator Attachment

For the alternator, the Hexagon Flange Head Cap Screw is used to attach the alternator to the engine block or bracket. This connection is vital for the proper functioning of the alternator, as it must be securely mounted to withstand the rotational forces exerted during operation. The flange head also aids in preventing the screw from being stripped during installation or removal, ensuring a reliable and durable connection.

In both applications, the use of the Hexagon Flange Head Cap Screw contributes to the overall integrity and performance of the engine system. Its design facilitates easy installation and removal, which is beneficial during maintenance or repair procedures.

Conclusion

The Cummins Hexagon Flange Head Cap Screw, part number 3930991, is a vital component in the automotive and heavy-duty truck industry. Its robust design, reliable performance, and key features make it an essential part for securing various engine components, ensuring the structural integrity and operational efficiency of heavy-duty trucks. Proper installation, maintenance, and adherence to safety considerations are crucial for maximizing the benefits of this part.