4080578
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw Assembly, identified by part number 4080578, is a component manufactured by Cummins, a well-established name in the automotive industry. This screw assembly is integral to the functionality of heavy-duty trucks, providing reliable fastening solutions that contribute to the overall performance and durability of these vehicles.

Basic Concepts

The Hexagon Flange Head Cap Screw Assembly is designed with a hexagonal flange head, which allows for efficient tightening and loosening using standard tools. The cap screw construction ensures a secure fit, making it suitable for various fastening applications. Typically, these screws are made from high-strength materials such as alloy steel, which offer superior resistance to wear and tear. The fundamental principle behind this assembly is to provide a robust and reliable fastening mechanism that can withstand the demanding conditions encountered in heavy-duty truck operations ¹.

Purpose and Role in Truck Operation

In the context of heavy-duty trucks, the Hexagon Flange Head Cap Screw Assembly serves a specific purpose. It is used to secure various components and assemblies within the truck, ensuring that parts remain firmly in place under significant stress and vibration. This contributes to the overall functionality and performance of the vehicle by maintaining the integrity of critical connections and joints ².

Key Features

Several key features distinguish the Hexagon Flange Head Cap Screw Assembly. The hexagonal flange head design allows for easy and efficient tightening using common tools, reducing the risk of damage to the screw or surrounding components. The cap screw construction provides a secure and stable fastening solution, while the use of high-strength materials ensures durability and resistance to loosening under dynamic conditions. Additionally, the design may include features such as a countersunk head for flush mounting or a corrosion-resistant coating to enhance performance in harsh environments ³.

Benefits

The Hexagon Flange Head Cap Screw Assembly offers several advantages in heavy-duty truck applications. Its design provides improved fastening strength, ensuring that components remain securely attached even under significant stress and vibration. The resistance to loosening helps maintain the integrity of critical connections over time, reducing the need for frequent re-tightening. Furthermore, the durability of the materials used ensures long-lasting performance in demanding environments, contributing to the overall reliability of the vehicle ⁴.

Installation and Usage

Proper installation and usage of the Hexagon Flange Head Cap Screw Assembly are vital for achieving optimal performance and longevity. When installing these screws, it is important to ensure that the mating surfaces are clean and free of debris to facilitate a secure fit. Using the appropriate torque specifications during installation helps prevent over-tightening, which can lead to damage, or under-tightening, which can compromise the fastening strength. Regular inspection and maintenance can help identify any issues early, ensuring continued reliable performance ⁵.

Troubleshooting and Maintenance

Common issues with the Hexagon Flange Head Cap Screw Assembly may include loosening, corrosion, or damage. Regular inspection can help identify screws that may be loosening, allowing for timely re-tightening or replacement. Corrosion can be mitigated by ensuring that the screws are made from materials resistant to the environmental conditions they will encounter, and by applying protective coatings where necessary. Any damaged screws should be replaced promptly to maintain the integrity of the fastening application ⁶.

Cummins Overview

Cummins Inc. is a renowned manufacturer in the automotive industry, with a history of producing high-quality components for heavy-duty trucks. The company is known for its commitment to innovation, quality, and reliability, making it a trusted name among professionals in the field. Cummins’ reputation is built on a foundation of delivering durable and efficient solutions that meet the demanding requirements of heavy-duty applications ⁷.

Hexagon Flange Head Cap Screw Assembly (Part 4080578) in Cummins Engines

The Hexagon Flange Head Cap Screw Assembly, identified by part number 4080578, is a critical component in the assembly and maintenance of various Cummins engines. This part is integral to the structural integrity and operational efficiency of the engines, ensuring that various components are securely fastened and aligned.

Application in Cummins Engines

QSK45 CM500 and QSK60 CM850 MCRS

The Hexagon Flange Head Cap Screw Assembly is utilized in both the QSK45 CM500 and QSK60 CM850 MCRS engines. These engines are part of Cummins’ QSK series, known for their robust design and high performance in various industrial applications. The part number 4080578 is essential in these engines for several reasons:

• Structural Integrity: The screw assembly helps maintain the structural integrity of the engine by securing various components together. This is crucial for the engine’s overall durability and longevity.
• Alignment and Stability: Proper alignment and stability of engine components are vital for optimal performance. The flange head cap screw ensures that parts are correctly positioned and fastened, reducing the risk of misalignment and potential engine failure.
• Ease of Maintenance: The design of the Hexagon Flange Head Cap Screw Assembly facilitates easier maintenance and repair processes. Technicians can quickly and efficiently remove and replace the screw, minimizing downtime and ensuring the engine remains operational.

Grouping of Engines

The QSK45 CM500 and QSK60 CM850 MCRS engines are grouped together due to their shared use of the Hexagon Flange Head Cap Screw Assembly. This commonality underscores the importance of the part in maintaining the structural and operational integrity of these engines. The use of the same part number across these engines also simplifies inventory management and ensures that technicians have the necessary components for maintenance and repairs.

Role of Part 4080578 Hexagon Flange Head Cap Screw Assembly in Engine Systems

The Hexagon Flange Head Cap Screw Assembly (part 4080578) is instrumental in securing various components within engine systems, ensuring stability and proper function.

Full Flow Oil Filter

In the context of the full flow oil filter, the Hexagon Flange Head Cap Screw Assembly is used to firmly attach the filter housing to the engine block or filter base. This secure attachment is essential for maintaining the integrity of the oil filtration system, ensuring that oil flows consistently through the filter media without leakage. The flange head of the screw provides a broad contact area, distributing the clamping force evenly and reducing the risk of damage to the filter housing.

Lifting Fixture

When it comes to the lifting fixture, the Hexagon Flange Head Cap Screw Assembly plays a role in attaching the fixture to the engine for safe handling and transportation. The robust design of the screw assembly ensures that the lifting fixture remains securely fastened, providing a reliable point of attachment for lifting equipment. This is particularly important during engine maintenance or replacement, where secure attachment points are necessary to prevent accidents.

Lubricating Oil Filter

Similar to its use in the full flow oil filter, the Hexagon Flange Head Cap Screw Assembly is also employed in securing the lubricating oil filter. This application ensures that the filter is tightly sealed against the engine, preventing oil leaks and maintaining the efficiency of the lubrication system. The flange head design enhances the screw’s ability to withstand vibrational forces common in engine operation, ensuring a lasting seal.

Water Inlet Connection

For the water inlet connection, the Hexagon Flange Head Cap Screw Assembly is utilized to attach the water inlet housing to the engine block. This connection is vital for the proper circulation of coolant within the engine, ensuring effective heat dissipation. The screw assembly’s design allows for a tight seal, preventing coolant leaks and maintaining the engine’s thermal management system’s efficiency.

Conclusion

In summary, the Hexagon Flange Head Cap Screw Assembly (part 4080578) is a versatile component that enhances the security and functionality of various engine system components. Its application across different parts of the engine underscores its importance in maintaining the overall performance and reliability of the engine.