4900849
Hexagon Flange Head Cap Screw
Cummins®

The Cummins part number 4900849, known as the Hexagon Flange Head Cap Screw, is a critical component in the automotive industry, particularly for commercial truck maintenance. Manufactured by Cummins, a renowned name in the industry, this screw is designed for robust performance in heavy-duty applications. Its significance lies in its ability to provide secure fastening solutions, ensuring the structural integrity and reliable operation of various truck components.

Basic Concepts

A Hexagon Flange Head Cap Screw is characterized by its hexagonal head and flanged base. 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. This design is crucial in mechanical systems for securely fastening components together.

Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks by providing a secure fastening solution for various components. Its design ensures that critical parts remain firmly attached, contributing to the overall safety and efficiency of the vehicle. This screw is often used in applications where vibration and dynamic loads are present, making its reliable performance vital for truck operation ¹.

Key Features

The 4900849 boasts several key features that enhance its functionality. Its hexagonal head design allows for easy and precise tightening using common tools. The flange at the base of the screw provides additional bearing surface, which helps in distributing the load and preventing the screw from pulling through the material. Additionally, the screw is typically made from high-strength materials, ensuring durability and resistance to wear in heavy-duty applications ².

Benefits

Using the 4900849 offers several benefits. The screw’s design enhances fastening security, reducing the risk of loosening over time. Its flange characteristic provides added stability, making it suitable for applications where components are subject to significant stress and vibration. Furthermore, the material composition of the screw ensures durability, making it an ideal choice for heavy-duty truck applications where reliability is paramount ³.

Installation Guidelines

Proper installation of the 4900849 is crucial for ensuring optimal performance and longevity. Begin by cleaning the installation area to remove any debris or contaminants. Use a compatible tool to insert the screw into the pre-drilled hole, ensuring it is aligned correctly. Tighten the screw to the specified torque setting to avoid over-tightening, which could damage the screw or the surrounding material. Regularly check the screw to ensure it remains secure and has not loosened over time.

Maintenance Tips

Maintaining the 4900849 involves regular inspection and care. Inspect the screw periodically for signs of wear, corrosion, or loosening. Apply a suitable lubricant to the screw if recommended by the manufacturer to reduce friction and wear. Adhere to the specified torque settings during re-tightening to prevent damage. Keeping the screw and its surrounding area clean will also contribute to its longevity and performance.

Troubleshooting Common Issues

Common issues with the 4900849 may include loosening, corrosion, or damage. If the screw becomes loose, re-tighten it to the specified torque setting. In cases of corrosion, clean the affected area thoroughly and apply a corrosion-resistant coating if necessary. If the screw is damaged, replace it with a new one to ensure the integrity of the fastening. Regular maintenance and inspections can help identify and address these issues promptly.

Cummins Overview

Cummins Inc. is a renowned manufacturer in the automotive industry, with a history of producing high-quality components for commercial vehicles. The company is known for its commitment to innovation, reliability, and customer satisfaction. Cummins’ extensive range of products, including the 4900849, underscores its dedication to meeting the needs of the heavy-duty truck market with durable and efficient solutions.

Component Usage

The 4900849 is integral in securing various components within engine systems, ensuring stability and reliability under operational conditions.

Exhaust Manifold

In the exhaust manifold, the Hexagon Flange Head Cap Screw is utilized to fasten the manifold to the engine block or cylinder head. This secure attachment is vital for maintaining the integrity of the exhaust system, ensuring that exhaust gases are efficiently directed away from the engine.

Filter

For filters, particularly air and oil filters, the Hexagon Flange Head Cap Screw secures the filter housing to the engine. This ensures that the filter is properly seated, allowing for effective filtration of contaminants from the air or lubricating oil.

Lubricating Oil System

In the lubricating oil system, the Hexagon Flange Head Cap Screw is often used to secure oil filters, pressure relief valves, and other components. Ensuring these parts are tightly fastened is important for maintaining the system’s pressure and flow, which are critical for proper lubrication of engine components.

Manifold

For both intake and exhaust manifolds, the Hexagon Flange Head Cap Screw is employed to secure manifold components to the engine. This includes attaching the manifold to the engine block or cylinder head, as well as fastening any additional components such as sensors or brackets.

Exhaust System

In the broader exhaust system, beyond the manifold, the Hexagon Flange Head Cap Screw is used in various applications. This includes securing catalytic converters, exhaust pipes, and mufflers to the manifold or other exhaust components. A secure attachment is necessary to prevent exhaust leaks, which can lead to increased emissions, reduced engine performance, and potential safety hazards.

Conclusion

The 4900849 Hexagon Flange Head Cap Screw is a versatile and reliable fastening solution essential for the maintenance and operation of commercial trucks. Its design and material properties make it suitable for the demanding conditions these engines operate under, ensuring the structural integrity and operational efficiency of engine systems.