4900379
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4900379, is a component manufactured by Cummins, a prominent name in the commercial truck industry. This screw is integral to the assembly and maintenance of commercial trucks, ensuring secure fastening of various components. Its design and functionality are tailored to meet the demanding requirements of heavy-duty applications.

Basic Concepts and Functionality

A Hexagon Flange Head Cap Screw is a type of fastener characterized by a hexagonal head and a flange—a flat, circular plate—attached to the underside of the head. The hexagonal head allows for easy tightening and loosening using a wrench, while the flange distributes the load over a larger area, reducing the risk of the screw pulling through the material. This design enhances the screw’s ability to secure components firmly within a truck’s mechanical system ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is used to fasten critical components, ensuring they remain securely in place under various operating conditions. This screw contributes to the vehicle’s overall structural integrity and performance by providing a reliable fastening solution that can withstand the vibrations and stresses encountered in heavy-duty applications ².

Key Features

The 4900379 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and durability. It is typically made from high-strength materials, such as alloy steel, to ensure it can withstand significant loads. The screw features a coarse thread, which provides excellent holding power and ease of installation. Additionally, the flange head design helps prevent the screw from pulling through the material, offering added security and stability ³.

Benefits

Using the 4900379 Hexagon Flange Head Cap Screw offers several benefits. Its design provides improved fastening strength, making it ideal for applications where secure and durable fastening is required. The screw’s resistance to vibration ensures that components remain securely fastened even under dynamic conditions. Furthermore, the hexagonal head allows for easy installation and removal, enhancing efficiency during maintenance procedures ⁴.

Installation and Usage Guidelines

Proper installation of the 4900379 Hexagon Flange Head Cap Screw involves several steps to ensure secure and effective fastening. Begin by cleaning the installation area to remove any debris or contaminants. Use a wrench to tighten the screw gradually, ensuring even torque distribution. It is important to avoid over-tightening, which can damage the screw or the material being fastened. Follow the manufacturer’s torque specifications for optimal results.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. To address these issues, regularly inspect the screws for signs of wear or corrosion. If a screw appears loose, tighten it to the specified torque. In cases of corrosion, consider replacing the screw to maintain the integrity of the fastening. Proper maintenance, including regular inspections and torque checks, will help ensure the longevity and optimal performance of the screw.

Compatibility and Applications

The 4900379 Hexagon Flange Head Cap Screw is designed for use in various applications within commercial trucks. It is compatible with a wide range of truck models and components, making it a versatile fastening solution. Its robust design and high-strength material ensure it can be used in critical applications where reliability and durability are paramount.

Safety Considerations

When handling and installing the 4900379 Hexagon Flange Head Cap Screw, it is important to follow safety guidelines to avoid common hazards. Wear appropriate personal protective equipment, such as gloves and safety glasses, to protect against injury. Use the correct tools to install and remove the screw, and follow torque specifications to prevent over-tightening. Additionally, ensure that the work area is clean and free from hazards to maintain a safe working environment.

Cummins: A Brief 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 established itself as a trusted name in the commercial truck industry. The company is committed to innovation, quality, and customer satisfaction, offering a comprehensive range of products designed to meet the needs of heavy-duty applications. Cummins’ dedication to excellence ensures that its components, including the 4900379 Hexagon Flange Head Cap Screw, deliver reliable performance and durability.

Hexagon Flange Head Cap Screw (Part 4900379) in Cummins Engines

The Cummins Hexagon Flange Head Cap Screw, identified by part number 4900379, is a critical component in several Cummins engine models. This screw is integral to the assembly and maintenance of the engines, ensuring secure fastening and stability.

A1400 and A1700 Engines

In the A1400 and A1700 engines, the 4900379 screw is used in various applications where a robust and reliable fastening solution is required. These engines, known for their durability and efficiency, benefit from the precision and strength offered by this screw. The flange head design allows for a larger bearing surface, distributing the load more evenly and reducing the risk of stripping or loosening over time.

A2000 and A2300 Engines

The A2000 and A2300 engines also incorporate the 4900379 screw in their construction. These engines, which are part of Cummins’ higher power output range, require components that can withstand significant stress and torque. The hexagon flange head cap screw provides the necessary strength and stability, ensuring that critical engine components remain securely fastened under operational conditions.

Common Applications

Across the A1400, A1700, A2000, and A2300 engines, the 4900379 screw is commonly used in applications such as:

• Securing engine covers and housings
• Fastening components that require high torque
• Ensuring alignment and stability of various engine parts

The use of this screw in these engines underscores its importance in maintaining the integrity and performance of Cummins’ engine lineup.

Role of Part 4900379 Hexagon Flange Head Cap Screw in Engine Systems

The part 4900379 Hexagon Flange Head Cap Screw is integral in securing and maintaining the structural integrity of various components within engine systems. Its application spans across multiple critical areas, ensuring the reliable operation of the engine.

Balancer and Engine Balancer

In the context of balancers and engine balancers, the 4900379 screw is used to fasten components that counteract the vibrations produced by the engine. By securely attaching balancer weights or counterweights, it helps in maintaining the smooth operation of the engine, reducing wear and tear on other parts.

Filter and Lubricating Oil Filter

When it comes to filters, particularly lubricating oil filters, the 4900379 screw plays a role in attaching the filter housing to the engine block or filter base. This ensures a leak-proof seal, which is essential for the efficient filtration of lubricating oil. Clean oil is vital for the lubrication of moving parts, preventing friction and extending the lifespan of the engine.

Spacer

In applications involving spacers, the 4900379 screw is employed to maintain proper spacing between components. This is particularly important in ensuring that parts are aligned correctly and that there is adequate clearance for movement without interference. Proper spacing is key to the efficient operation and longevity of engine components.

Fan Pilot

The fan pilot, which is responsible for driving the engine cooling fan, also benefits from the secure attachment provided by the 4900379 screw. By fastening the fan pilot to the engine or its housing, it ensures that the cooling system operates effectively, maintaining optimal engine temperature and preventing overheating.

Conclusion

In summary, the 4900379 Hexagon Flange Head Cap Screw is a versatile fastener that contributes to the secure and efficient operation of various engine components. Its role in attaching, spacing, and sealing is fundamental to the overall performance and durability of engine systems.