4907481
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw (Part #4907481) manufactured by Cummins is a specialized fastener designed for use in commercial truck maintenance. This part is significant due to its robust design and reliable performance, making it suitable for various applications within the automotive industry. Its primary role is to secure components and ensure structural integrity in commercial trucks, contributing to the overall efficiency and safety of the vehicle.

Basic Concepts

Hexagon Flange Head Cap Screws are characterized by their hexagonal head and flanged design. The hexagonal head allows for easy tightening and loosening using a wrench or socket, while the flange provides additional surface area to distribute the load and prevent the screw from sinking into the material. In the automotive industry, these screws are commonly used to fasten components that require high tensile strength and resistance to vibration ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation of commercial trucks by securing critical components. It ensures that parts remain firmly in place, even under significant stress and vibration, which are common in heavy-duty applications. This screw is often used in areas where structural integrity is paramount, such as in the engine compartment, chassis, and other load-bearing sections of the truck.

Key Features

The 4907481 features a hexagonal flange head design, which facilitates easy installation and removal. It is composed of high-quality materials, typically steel alloys, which provide excellent strength and durability. The screw also has precise thread specifications that ensure a secure fit and reliable performance. These features collectively contribute to the screw’s ability to withstand high loads and resist loosening over time.

Benefits

Using the 4907481 offers several benefits. Its design enhances fastening strength, making it ideal for applications where components are subjected to significant stress. The screw’s resistance to loosening ensures that fastened parts remain secure, reducing the risk of failure. Additionally, its compatibility with various truck components makes it a versatile choice for different fastening needs.

Installation Guidelines

To install the 4907481, follow these steps:

1. Ensure the mating surfaces are clean and free of debris.
2. Align the screw with the designated hole.
3. Use a wrench or socket to tighten the screw gradually, applying even pressure.
4. Torque the screw to the manufacturer’s specified torque settings to ensure a secure fit without over-tightening.
5. Verify that the screw is properly seated and the flange is flush with the surface.

Troubleshooting and Maintenance

Common issues with the 4907481 include loosening, corrosion, and damage. To address these problems:

• Regularly inspect screws for signs of wear or corrosion.
• Re-tighten screws as needed to maintain secure fastening.
• Replace screws that show significant damage or corrosion to prevent failure.
• Apply a corrosion-resistant coating or lubricant to prolong the screw’s service life.

Safety Considerations

When working with the 4907481, observe the following safety precautions:

• Wear appropriate personal protective equipment, such as gloves and safety glasses.
• Use the correct tools to avoid damaging the screw or surrounding components.
• Store screws in a dry, organized environment to prevent corrosion and damage.
• Dispose of used or damaged screws according to local regulations to ensure environmental safety.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins is renowned for its high-quality products and innovative solutions in the automotive industry. The company’s commitment to excellence and customer satisfaction is reflected in its wide range of reliable and durable components, including the 4907481 ².

Hexagon Flange Head Cap Screw (Part 4907481) in ISM CM570/870 and ISM CM876 Engines

The Hexagon Flange Head Cap Screw, part number 4907481, manufactured by Cummins, is a critical component in the assembly and maintenance of the ISM CM570/870 and ISM CM876 engines. This part is integral to ensuring the structural integrity and operational efficiency of these engines.

In the ISM CM570/870 engines, the 4907481 screw is utilized in various applications where a secure fastening is required. Its design allows for a robust connection, which is essential in maintaining the alignment and stability of engine components under high stress conditions. The flange head provides a larger surface area for the application of torque, ensuring that the screw can withstand the operational forces without loosening.

Similarly, in the ISM CM876 engines, the 4907481 screw plays a pivotal role in the assembly process. Given the complexity and precision required in engine manufacturing, this screw is often used in areas where it is crucial to maintain a tight and secure fit. The hexagonal shape of the screw head facilitates easier and more efficient tightening and loosening, which is beneficial during both the initial assembly and subsequent maintenance procedures.

The use of this screw in both engine models underscores its importance in the overall design and functionality of the engines. Its application in various critical points ensures that the engines can operate reliably and efficiently, contributing to the overall performance and longevity of the machinery.

Role of Part 4907481 Hexagon Flange Head Cap Screw in Engine Systems

The 4907481 is instrumental in securing various components within engine systems, ensuring stability and integrity during operation.

Pan Assembly Integration

In the pan assembly, the Hexagon Flange Head Cap Screw is utilized to fasten the pan to the engine block. This secure attachment is vital for maintaining the structural integrity of the pan, which houses essential engine lubricants. The screw’s design allows for a snug fit, preventing any potential leaks that could occur from vibrations or thermal expansion during engine operation.

Oil System Components

Within the oil system, the Hexagon Flange Head Cap Screw plays a significant role in attaching the oil filter housing to the engine block. This connection is essential for maintaining the oil filter’s position and ensuring a leak-free seal. The screw’s flange head provides additional surface area for a tighter seal, which is crucial for the efficient functioning of the oil filtration system.

Additionally, this screw is used in the attachment of oil passages and galleries within the engine block. Secure fastening of these components ensures that oil flows smoothly through the engine, providing necessary lubrication to moving parts and contributing to the overall efficiency and longevity of the engine.

The utilization of the Hexagon Flange Head Cap Screw in these applications underscores its importance in maintaining the structural and functional integrity of engine systems.

Conclusion

The 4907481 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks and engines. Its robust design, reliable performance, and versatile applications make it an essential part for ensuring structural integrity and operational efficiency. Proper installation, regular maintenance, and adherence to safety guidelines are crucial for maximizing the benefits of this part.