4900257
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #4900257, is a component manufactured by Cummins. This screw is significant in the realm of commercial truck maintenance due to its robust design and reliable performance. Cummins, a well-established name in the industry, ensures that this part meets the stringent demands of heavy-duty applications.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener 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 provides a larger bearing surface that helps distribute the load and prevent the screw from sinking into the material. Within mechanical systems, these screws are used to secure various components, ensuring stability and integrity under operational stresses.

Purpose and Role in Truck Operation

This Cummins part serves a specific purpose in truck operations by securing critical components that are subject to significant stress and vibration. This screw is often used in applications where a combination of high tensile strength and resistance to loosening is required. It plays a role in fastening engine components, chassis parts, and other assemblies where durability and reliability are paramount.

Key Features

The 4900257 boasts several key features that enhance its performance. Its hexagonal head design allows for straightforward and secure tightening using common tools. The flange beneath the head provides an increased bearing surface, which helps in distributing the load more evenly and reducing the risk of the screw head sinking into the material. Additionally, the screw is crafted from high-quality materials that offer excellent corrosion resistance and tensile strength, ensuring longevity in demanding environments.

Benefits

Using the 4900257 offers several advantages. Its durable construction ensures long-term reliability, even under harsh conditions. The design resists vibration, which is crucial in maintaining secure fastenings in dynamic environments like those found in commercial trucks. Furthermore, the ease of installation, thanks to its hexagonal head, allows for quick and efficient assembly, reducing downtime during maintenance procedures.

Installation Process

Proper installation of the 4900257 is vital for ensuring optimal performance and longevity. Begin by cleaning the installation site to remove any debris or contaminants. Use a torque wrench to apply the recommended torque settings, ensuring that the screw is tightened to the manufacturer’s specifications. This prevents over-tightening, which can lead to damage, and under-tightening, which can result in loosening. Always use the appropriate tools to avoid damaging the hexagonal head.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include corrosion, loosening, and damage due to improper torque application. Regular inspection for signs of wear or corrosion is recommended. If corrosion is detected, cleaning the affected area and applying a suitable anti-corrosive treatment can help. Ensuring that the screw is tightened to the correct torque specifications during installation can prevent loosening. Should the screw become damaged, replacement with a new part is advised to maintain system integrity.

Safety Considerations

When working with Hexagon Flange Head Cap Screws, several safety practices should be observed. Always use the correct torque settings to avoid over-tightening or under-tightening, which can lead to component failure. Personal protective equipment, such as gloves and safety glasses, should be worn to protect against injuries from sharp edges or flying debris. Additionally, ensure that the work area is clean and free from hazards to prevent accidents during installation or maintenance.

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 has built a reputation for innovation, quality, and reliability in the commercial truck industry. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of heavy-duty applications. Cummins’ commitment to excellence ensures that their components, like the 4900257, deliver reliable performance and durability.

Cummins Hexagon Flange Head Cap Screw 4900257 in Engine Applications

The Cummins Hexagon Flange Head Cap Screw 4900257 is a critical component in various engine configurations, ensuring secure fastening and maintaining structural integrity. This part is designed to fit seamlessly into the engine architecture, providing a reliable connection that withstands the operational stresses of the engine.

In the A1400 and A1700 engines, the 4900257 screw is often used in areas requiring robust fastening. Its flange head design allows for a larger surface area, distributing the load more evenly and preventing damage to the mating surfaces. This is particularly important in high-vibration environments, where the screw must maintain its hold without loosening over time.

For the A2000 and A2300 engines, the 4900257 screw plays a similar role but is typically found in more demanding applications. The larger size of these engines necessitates stronger fastening solutions, and the hexagon flange head cap screw provides the necessary strength and durability. Its use in these engines ensures that critical components remain securely fastened, contributing to the overall reliability and performance of the engine.

The 4900257 screw’s compatibility across these engines highlights its versatility and importance in maintaining engine integrity. Whether in the A1400 and A1700 or the A2000 and A2300, this part is engineered to meet the stringent requirements of Cummins engines, ensuring optimal performance and longevity.

Role of Part 4900257 Hexagon Flange Head Cap Screw in Engine Systems

The Part 4900257 Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. In the Drive system, it ensures that the components are tightly fastened, minimizing the risk of loosening due to vibrations. This is particularly important in high-torque applications where secure fastening is essential.

In the Front Gear Train Accessory, the screw plays a role in maintaining the alignment and stability of the accessory components. Proper fastening ensures that the gear train operates smoothly, reducing wear and tear on the gears.

For the Lubricating Oil Filter, the screw is used to secure the filter housing. This is vital for maintaining the seal integrity, ensuring that the oil filtration process is effective and that contaminants are properly removed from the lubricating oil.

In the Oil Pan and Pan, the screw is employed to fasten the pan to the engine block. This secure attachment is necessary to prevent oil leaks and to maintain the structural integrity of the oil pan.

The Spacer components often require the use of this screw to maintain proper spacing between parts. This is essential for the correct functioning of various engine systems, ensuring that components are neither too close nor too far apart.

Lastly, in the Fan Pilot system, the screw is used to secure the fan pilot to the engine, ensuring that the fan operates efficiently and remains stable during engine operation. This helps in maintaining optimal cooling performance for the engine.

Conclusion

The 4900257 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks, particularly in engine systems. Its robust design, reliable performance, and ease of installation make it an essential part for securing critical components under demanding conditions. Proper installation, regular maintenance, and adherence to safety practices ensure the longevity and effectiveness of this Cummins part in heavy-duty applications.