4900326
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, specifically Part #4900326 by Cummins, is a vital component in the maintenance and operation of commercial trucks. Cummins, a renowned manufacturer in the industry, produces this screw to meet the demanding requirements of heavy-duty applications. This screw is designed to provide reliable fastening solutions, ensuring the structural integrity and efficient operation of various truck components.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. 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. Within mechanical systems, these screws play a role in securely joining components, ensuring stability and durability under stress ¹.

Purpose and Role in Truck Operation

The 4900326 Hexagon Flange Head Cap Screw serves a specific purpose in commercial truck operations by securing critical components and ensuring structural integrity. It is often used in applications where high tensile strength and resistance to vibration are required. By providing a secure fastening solution, this screw helps maintain the alignment and functionality of various truck parts, contributing to overall vehicle performance and safety ².

Key Features

The 4900326 Hexagon Flange Head Cap Screw boasts several key features that enhance its functionality and durability. Its hexagonal head design allows for efficient torque application, while the flange characteristic provides added stability and load distribution. The screw is typically made from high-strength materials, such as alloy steel, which offers excellent resistance to corrosion and wear. These features collectively contribute to the screw’s ability to withstand the rigors of commercial truck use ³.

Benefits

Using the 4900326 Hexagon Flange Head Cap Screw offers several benefits. The design of the screw enhances fastening security, reducing the risk of loosening over time. The flange helps distribute the load more evenly, minimizing stress on the fastening point. Additionally, the high-strength material composition ensures durability and resistance to environmental factors, making it a reliable choice for heavy-duty applications ⁴.

Installation Guidelines

Proper installation of the 4900326 Hexagon Flange Head Cap Screw is crucial for ensuring its effectiveness. Begin by cleaning the installation surface to remove any debris or contaminants. Use a wrench or socket to tighten the screw to the specified torque, which is typically provided in the manufacturer’s guidelines. It is important to avoid over-tightening, as this can lead to damage. Recommended tools include a torque wrench for precise application of torque and a socket set for efficient tightening ⁵.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. To address these problems, regular inspections should be conducted to ensure screws remain tight and free of corrosion. If loosening is detected, re-tighten the screw to the specified torque. In cases of corrosion, consider replacing the screw to prevent further degradation. Maintenance tips include applying a thread locker to enhance resistance to vibration and using corrosion-resistant coatings for added protection ⁶.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. Founded in 1919, Cummins has built a reputation for innovation and quality in the commercial truck industry. The company offers a wide range of products designed to meet the needs of various applications, from on-highway to off-highway and industrial uses. Cummins’ commitment to excellence and customer satisfaction has established it as a trusted name in the industry ⁷.

Cummins Hexagon Flange Head Cap Screw 4900326 in Engine Applications

The Cummins Hexagon Flange Head Cap Screw 4900326 is a critical component in several engine models, ensuring secure fastening and structural integrity. This part is designed to withstand high stress and provide reliable performance in demanding environments.

A1400 and A1700 Engines

In the A1400 and A1700 engines, the 4900326 screw is used in various applications where secure fastening is crucial. These engines often require robust fasteners to maintain the integrity of their components under high operational loads. The screw’s design allows for precise alignment and secure fastening, which is essential for the proper functioning of these engines ⁸.

A2000 and A2300 Engines

The A2000 and A2300 engines also benefit from the use of the 4900326 screw. These engines typically operate under more demanding conditions, necessitating high-quality fasteners that can endure significant stress and pressure. The screw’s hexagonal flange head provides a larger surface area for torque application, ensuring that the fasteners remain tight and secure even in high-vibration environments ⁹.

Common Applications

Across the A1400, A1700, A2000, and A2300 engines, the 4900326 screw is commonly used in applications such as:

• Cylinder Head Fastening: Ensuring that the cylinder heads are securely attached to the engine block.
• Turbocharger Mounting: Providing a reliable connection for turbochargers, which are critical for maintaining engine performance.
• Exhaust Manifold Attachment: Securing the exhaust manifold to prevent leaks and maintain efficient exhaust flow.

The use of the 4900326 screw in these engines highlights its importance in maintaining the structural integrity and performance of the engines under various operational conditions ¹⁰.

Role of Part 4900326 Hexagon Flange Head Cap Screw in Engine Systems

The part 4900326 Hexagon Flange Head Cap Screw is integral to the assembly and functionality of various engine components.

Cover Assembly

In the cover assembly, this screw ensures a secure fit, maintaining the integrity of the engine’s protective enclosure. It helps in distributing the clamping force evenly, which is essential for preventing leaks and ensuring the cover remains firmly in place under operational stress ¹¹.

Front Gear and Front Gear Cover

When used in the front gear and front gear cover, the Hexagon Flange Head Cap Screw plays a significant role in holding these components together. This secure attachment is vital for the precise alignment and operation of the front gear, which is responsible for transmitting power from the engine to other parts of the machinery ¹².

Manifold Attachment

In the manifold, this screw is employed to fasten the manifold to the engine block or other components. Its design allows for a robust connection, which is necessary to withstand the high temperatures and pressures within the engine system. This secure fastening ensures efficient airflow and combustion processes ¹³.

Exhaust System

Within the exhaust system, the Hexagon Flange Head Cap Screw is used to connect various exhaust components, such as the exhaust manifold to the exhaust pipe. This connection is essential for maintaining the structural integrity of the exhaust system, ensuring that exhaust gases are directed away from the engine efficiently and safely ¹⁴.

Conclusion

The 4900326 Hexagon Flange Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and engines. Its design, featuring a hexagonal head and flanged base, provides secure fastening, efficient torque application, and enhanced load distribution. Made from high-strength materials, this screw offers durability and resistance to environmental factors, making it suitable for heavy-duty applications. Proper installation and regular maintenance are essential to ensure its effectiveness and longevity in demanding environments.