4900426
Hexagon Flange Head Cap Screw
Cummins®

The Cummins 4900426 Hexagon Flange Head Cap Screw is a critical component in the automotive and heavy-duty truck industry. Manufactured by Cummins, a reputable name known for its quality and innovation, this screw ensures the secure fastening of various components in commercial trucks. Its design and materials make it a reliable choice for truck operators and mechanics.

Basic Concepts

A Hexagon Flange Head Cap Screw is a fastener with a hexagonal head and flanged base. The hexagonal head allows for efficient torque application, while the flange distributes load and prevents the screw from sinking into softer materials. In a truck’s mechanical system, this screw secures components, ensuring structural integrity and reliable operation.

Purpose and Role in Truck Operation

This Cummins part is used in various applications within a truck’s mechanical system, including fastening engine components and chassis parts. It provides a secure and stable connection, essential for the safe and efficient operation of the truck. The screw’s design ensures it can withstand significant stress and vibration common in heavy-duty truck environments.

Key Features

The 4900426 boasts several key features that enhance its performance and reliability. Its hexagonal head design allows for easy and precise torque application, reducing the risk of over-tightening or stripping. The flange at the base provides additional stability and load distribution, preventing the screw from embedding into the material it is fastening. Additionally, the screw is crafted from high-quality materials, offering excellent durability and resistance to corrosion, which is particularly important in the harsh conditions often encountered by commercial trucks.

Benefits

Using the 4900426 offers several benefits. Its robust construction and high-quality materials contribute to its durability, ensuring long-term performance even under demanding conditions. The screw’s design resists loosening, which is crucial in applications where vibrations are common. Furthermore, the hexagonal head and flange make it easy to install and remove, facilitating maintenance and repair processes.

Installation and Usage

Proper installation of the 4900426 is vital to ensure its effectiveness and longevity. It is recommended to use the appropriate torque specifications provided by the manufacturer to avoid over-tightening, which can lead to damage, or under-tightening, which can compromise the fastening. Best practices include cleaning the fastening area to remove any debris or corrosion, using a torque wrench for accurate tightening, and periodically checking the screw’s tightness to ensure it remains secure.

Troubleshooting and Maintenance

Common issues with the 4900426 may include loosening due to vibration or corrosion over time. Regular inspection and maintenance can help identify and address these issues promptly. If loosening is detected, re-tightening the screw to the specified torque is recommended. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosion treatment can help prevent further degradation. Regular maintenance ensures the screw continues to perform its role effectively.

Cummins Overview

Cummins is a renowned manufacturer in the automotive and heavy-duty truck industry, with a history of innovation and quality. The company is committed to producing reliable and high-performance components, including the 4900426. Cummins’ reputation is built on its dedication to excellence, ensuring that its products meet the rigorous demands of commercial truck applications.

Cummins Hexagon Flange Head Cap Screw 4900426 Compatibility with Engine Models

The Cummins Hexagon Flange Head Cap Screw part number 4900426 is designed to fit seamlessly with a range of Cummins engine models, ensuring robust and reliable performance. This part is integral to the assembly and maintenance of the engines, providing a secure fastening solution for various components.

A1400 and A1700 Engines

The A1400 and A1700 engines benefit from the precision and durability of the 4900426 screw. This part is commonly used in these engines for securing critical components, ensuring that they remain tightly fastened under operational stresses. The screw’s design allows for easy installation and removal, facilitating efficient maintenance procedures.

A2000 and A2300 Engines

Similarly, the A2000 and A2300 engines utilize the 4900426 screw for various applications. Given the higher power output and more complex design of these engines, the screw’s reliability and strength are crucial. It is often used in areas where high torque and pressure are factors, ensuring that the components stay securely fastened and operational integrity is maintained.

Grouping for Efficiency

When considering the A1400 and A1700 engines together, the 4900426 screw provides a standardized solution for securing components across these models. This grouping simplifies inventory management and ensures that maintenance personnel can use the same part for multiple engine types, reducing the need for specialized parts.

For the A2000 and A2300 engines, the screw’s application is similarly grouped, allowing for streamlined maintenance and repair processes. The consistency in design and function of the 4900426 screw across these engines ensures that technicians can efficiently address any fastening needs, enhancing overall engine reliability and performance.

Hexagon Flange Head Cap Screw in Engine Systems

The part 4900426 is integral to the assembly and functionality of various engine components.

Housing Assembly

In the housing assembly, this screw plays a significant role in securing the housing to the engine frame. It ensures that the housing remains firmly in place, which is essential for maintaining the structural integrity of the engine. The flange head of the screw provides additional surface area for distribution of clamping force, reducing the risk of stripping or damage to the housing material.

Flywheel Attachment

When attaching the flywheel to the crankshaft, the Hexagon Flange Head Cap Screw is used to secure the flywheel in place. This is important for the smooth operation of the engine, as the flywheel helps to maintain rotational energy and stabilize the engine’s RPM. The screw’s design allows for easy torque application, ensuring that the flywheel is properly aligned and tightly secured.

Motor Mounting

For motor applications, this screw is often used in the mounting brackets that secure the motor to its base or chassis. Proper securing is vital to prevent vibrations and ensure that the motor operates within its specified parameters. The flange head offers enhanced resistance to loosening, which is particularly beneficial in dynamic environments where vibrations are common.

Starting System Integration

In starting systems, the Hexagon Flange Head Cap Screw is employed to fasten components such as the starter motor to the engine block or transmission housing. This ensures that the starter motor is correctly positioned and can engage the flywheel effectively. The screw’s robust design helps in withstanding the mechanical stresses generated during the starting process, contributing to reliable engine starts.

Conclusion

The Cummins 4900426 Hexagon Flange Head Cap Screw is a vital component in the automotive and heavy-duty truck industry. Its design, materials, and compatibility with various Cummins engine models make it a reliable and efficient choice for securing critical components in commercial trucks. Proper installation, regular maintenance, and understanding its role in engine systems ensure the longevity and performance of this essential part.