4900321
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #4900321, is a specialized fastener produced by Cummins, a renowned manufacturer in the automotive and heavy-duty truck industry. This screw is integral to various commercial truck applications, providing secure fastening solutions that contribute to the overall structural integrity and performance of the vehicle.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt characterized by its hexagonal head and a flange beneath the head. The hexagonal head allows for efficient torque application using standard tools, while the flange distributes the load over a larger area, reducing the risk of the screw sinking into the material. In fastening applications, this screw is used to join components securely, ensuring they remain fixed under various operational stresses.

Purpose and Role in Truck Operation

The 4900321 Hexagon Flange Head Cap Screw plays a significant role in commercial trucks by providing secure fastenings that are vital for the vehicle’s structural integrity. It is commonly used in applications where components are subjected to significant stress and vibration, such as in the engine compartment, chassis, and other critical areas. By ensuring that parts remain firmly attached, this screw helps maintain the truck’s performance and safety.

Key Features

The 4900321 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and reliability. Its hexagonal head design allows for straightforward and precise torque application, ensuring consistent fastening strength. The flange beneath the head provides additional surface area for load distribution, minimizing the risk of the screw pulling through the material. Additionally, the screw is crafted from high-quality materials, offering excellent resistance to corrosion and wear, which is crucial for durability in heavy-duty applications.

Benefits

Using the 4900321 Hexagon Flange Head Cap Screw in truck applications offers several benefits. The design of the screw enhances fastening security, reducing the likelihood of loosening over time, even under significant vibration and stress. Its robust construction ensures durability, making it suitable for heavy-duty conditions typically encountered in commercial trucking. Furthermore, the flange design contributes to a more even distribution of load, which can help prolong the service life of both the screw and the fastened components.

Installation and Usage Guidelines

Proper installation of the 4900321 Hexagon Flange Head Cap Screw is crucial for optimal performance. It is recommended to follow specific torque specifications provided by the manufacturer to ensure the screw is tightened to the correct level, avoiding over-tightening or under-tightening. Using the appropriate tools for application, such as a torque wrench, can help achieve the desired fastening strength. Additionally, it is advisable to periodically check the tightness of the screw, especially in applications subject to frequent vibration or stress, to maintain secure fastenings over time.

Troubleshooting and Maintenance

Common issues with the 4900321 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion. Regular inspections can help identify such problems early. If loosening is detected, re-tightening the screw to the specified torque can often resolve the issue. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosive treatment can help prevent further degradation. Maintaining the screw and its surrounding components in good condition is key to ensuring continued reliability and performance.

Cummins Overview

Cummins is a globally recognized leader in the design, manufacture, and distribution of engines and related technologies. With a rich history of innovation and a strong reputation for quality, Cummins has established itself as a trusted provider of automotive components. The company’s commitment to excellence is evident in its rigorous manufacturing processes and continuous investment in research and development, ensuring that its products, like the 4900321 Hexagon Flange Head Cap Screw, meet the high demands of commercial truck applications ¹.

Cummins Hexagon Flange Head Cap Screw (Part 4900321) in Engine Applications

The Cummins Hexagon Flange Head Cap Screw, identified by part number 4900321, is a critical component in the assembly and maintenance of various engine models. This screw is designed to provide secure fastening in applications where a robust and reliable connection is essential. Its application spans across several Cummins engine models, ensuring compatibility and performance.

A1400 and A1700 Engines

In the A1400 and A1700 engines, the 4900321 screw is utilized in areas requiring high-strength fastening. These engines, known for their reliability and efficiency, benefit from the screw’s ability to withstand significant stress and maintain a tight connection over time. The screw’s design ensures that critical components remain securely fastened, contributing to the overall durability and performance of the engines.

A2000 and A2300 Engines

Similarly, in the A2000 and A2300 engines, the 4900321 screw plays a vital role in securing various parts. These engines, which are part of a series known for their power and efficiency, rely on this screw to maintain structural integrity. The screw’s flange head provides a larger surface area for the application of torque, ensuring that connections remain tight and secure under operational conditions.

Grouping of Engines

The A1400 and A1700 engines can be grouped together due to their similar design and operational characteristics. Both engines benefit from the use of the 4900321 screw in similar applications, ensuring consistent performance and reliability. Similarly, the A2000 and A2300 engines, while differing in size and power, share a common need for robust fastening solutions, making the 4900321 screw an ideal choice for both models.

The use of the 4900321 screw across these engines highlights its versatility and importance in maintaining the integrity of Cummins engine systems.

Role of Part 4900321 Hexagon Flange Head Cap Screw in Engine Systems

The part 4900321 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems, ensuring stability and integrity during operation.

In the assembly of the cover, this screw plays a significant role in fastening the cover to the engine block, providing a secure seal that prevents oil leaks and maintains the structural integrity of the cover.

For the front gear, the screw is used to attach the gear to its housing, ensuring precise alignment and reducing the risk of gear misalignment, which could lead to inefficient operation or damage.

The fan pilot spacer relies on this screw to maintain the correct spacing between the fan and other components, ensuring optimal airflow and cooling efficiency. Proper spacing is essential for the fan to operate within its designed parameters.

In the installation of the oil level gauge, the screw secures the gauge to the engine, allowing for accurate measurement of oil levels. This is important for monitoring the engine’s lubrication system and ensuring it operates within safe parameters.

The oil pan assembly utilizes this screw to attach the pan securely to the engine block. A well-fastened oil pan is vital for containing the engine oil and protecting it from leaks, which could lead to oil loss and potential engine damage.

Lastly, in the context of the pan and general oil system components, the screw ensures that all parts are tightly secured, contributing to the overall reliability and performance of the engine. This includes preventing vibrations that could loosen components over time, thereby maintaining the engine’s operational efficiency.

Conclusion

The 4900321 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of Cummins engines and commercial trucks. Its design and features ensure secure fastening, durability, and resistance to corrosion, making it suitable for heavy-duty applications. Proper installation, regular maintenance, and adherence to torque specifications are essential for maximizing the performance and longevity of this Cummins part.