4001048
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4001048, is a component manufactured by Cummins, a well-established name in the automotive industry. This screw is integral to the assembly and maintenance of commercial trucks, providing a secure fastening solution that ensures the longevity and reliability of truck components.

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 tightening and loosening using a wrench or socket, while the flange distributes the load over a larger area, reducing the risk of the screw pulling through the material. In a truck’s assembly, these screws are used to join various components securely, ensuring that parts remain fixed under operational stress ¹.

Purpose and Role in Truck Operation

The 4001048 Hexagon Flange Head Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is designed to fasten components that are subject to significant stress and vibration, such as engine mounts, chassis parts, and body panels. By providing a secure and stable connection, this screw helps maintain the structural integrity of the truck, ensuring safe and reliable operation ².

Key Features

The 4001048 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise tightening. The flange beneath the head enhances the screw’s ability to resist pulling through the material, offering additional security. Made from high-quality materials, this screw is designed to withstand the rigors of heavy-duty applications, ensuring durability and reliability in commercial truck environments ³.

Benefits

Using the 4001048 Hexagon Flange Head Cap Screw offers several benefits. Its design enhances fastening security, providing a stable connection that resists loosening due to vibration. The flange feature distributes the load more evenly, reducing the risk of damage to the fastened material. Additionally, the high-quality material composition ensures durability, making it suitable for heavy-duty applications where reliability is paramount ⁴.

Installation Guidelines

To ensure optimal performance and longevity, follow these guidelines for installing the 4001048 Hexagon Flange Head Cap Screw:

1. Ensure the mating surfaces are clean and free of debris.
2. Align the screw with the designated hole.
3. Use a wrench or socket to tighten the screw gradually, avoiding over-tightening.
4. Check the torque specifications provided by the manufacturer to ensure proper tightening.

Troubleshooting Common Issues

Common issues with the 4001048 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion. To address these problems:

• Regularly inspect screws for signs of loosening or corrosion.
• Re-tighten screws as necessary, following torque specifications.
• Apply a thread locker to prevent loosening in high-vibration environments.
• Replace screws showing signs of significant corrosion or damage.

Maintenance Tips

To prolong the service life and maintain the functionality of the 4001048 Hexagon Flange Head Cap Screw:

• Conduct regular inspections to check for signs of wear, corrosion, or loosening.
• Perform torque checks to ensure screws remain properly tightened.
• Clean mating surfaces before re-installation to prevent corrosion.
• Use appropriate protective coatings or treatments in corrosive environments.

Cummins Overview

Cummins is a renowned manufacturer in the automotive industry, known for its high-quality components for commercial vehicles. With a rich history and a strong reputation for reliability and performance, Cummins is committed to producing components that meet the demanding requirements of heavy-duty applications. The company’s dedication to quality and innovation ensures that its products, like the 4001048 Hexagon Flange Head Cap Screw, deliver exceptional performance and durability in commercial truck operations.

Hexagon Flange Head Cap Screw (Part 4001048) Compatibility with Cummins Engines

The Hexagon Flange Head Cap Screw, part number 4001048, manufactured by Cummins, is a critical component used in various Cummins engine models. This screw is designed to provide secure fastening in applications where a strong, reliable connection is essential. Below is a detailed look at how this part fits with specific Cummins engine series.

ISX12/ISX11.9 CM2250 Engines

The ISX12 and ISX11.9 CM2250 engines are high-performance diesel engines known for their robust design and efficiency. The 4001048 screw is utilized in these engines for securing various components, ensuring that parts remain tightly fastened under high operational stresses.

ISZ13 CM2150 Z105 and QSZ13 CM2150 Z102 Engines

Both the ISZ13 CM2150 Z105 and QSZ13 CM2150 Z102 engines benefit from the use of the 4001048 screw. This part is integral in maintaining the structural integrity of these engines, particularly in areas where flange connections are critical.

QSK45 CM500, QSK60 CM500, and QSK78 CM500 Engines

The QSK45 CM500, QSK60 CM500, and QSK78 CM500 engines are part of Cummins’ QSK series, known for their versatility and reliability. The 4001048 screw is employed in these engines to secure various components, ensuring that the engine’s internal and external parts remain firmly attached.

QSK60 CM850 MCRS Engine

The QSK60 CM850 MCRS engine is another variant where the 4001048 screw plays a vital role. This screw is used in securing components that require a high level of fastening strength, contributing to the overall durability and performance of the engine.

QSV91-G4 CM558/CM700 V102 and QSV91G Engines

The QSV91-G4 CM558/CM700 V102 and QSV91G engines are equipped with the 4001048 screw for critical fastening applications. This screw ensures that all connected parts remain securely in place, enhancing the engine’s operational efficiency and longevity.

By integrating the 4001048 Hexagon Flange Head Cap Screw into these various Cummins engine models, the manufacturer ensures that each engine operates with the highest level of reliability and performance.

Role of Part 4001048 Hexagon Flange Head Cap Screw in Engine Systems

The part 4001048 Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various components within engine systems. Its application spans across multiple subsystems, ensuring that each part functions cohesively and efficiently.

In the arrangement of the turbocharger, this screw is utilized to fasten the compressor housing to the turbine housing. This secure attachment is vital for maintaining the precise alignment and balance necessary for optimal turbocharger performance.

Within the compressor system, the screw plays a role in attaching the compressor wheel to the shaft. This ensures that the wheel operates smoothly and efficiently, contributing to the overall effectiveness of the compressor in increasing the air pressure delivered to the engine.

In refrigerant systems, the screw is employed to secure components of the refrigerant cycle, such as the condenser and evaporator. This securement is essential for maintaining the structural integrity of these components, which are subject to varying pressures and temperatures.

The drive system benefits from the use of this screw in attaching the drive components to the engine. This includes securing the drive pulley to the crankshaft, ensuring that power is efficiently transferred from the engine to the driven components.

In fan systems, the screw is used to attach the fan blades to the fan hub. This secure attachment is crucial for the fan’s operation, as it ensures that the blades remain firmly in place despite the high rotational speeds and forces they encounter.

The exchanger system, particularly in heat exchangers, utilizes this screw to secure the fins and tubes. This securement is important for maintaining the structural integrity of the exchanger, which is critical for efficient heat transfer.

In the housing of various engine components, such as the flywheel housing or front gear housing, the screw is used to ensure that these housings remain securely attached to the engine block. This is important for maintaining the structural integrity of the engine and preventing leaks or failures.

Finally, in the engine cooling system, the screw is used to secure components such as the water pump and radiator. This ensures that these components remain firmly in place, contributing to the efficient operation of the cooling system and the overall performance of the engine.

Conclusion

The 4001048 Hexagon Flange Head Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its design, featuring a hexagonal head and a flange, provides secure fastening that resists loosening due to vibration and corrosion. The screw’s high-quality material composition ensures durability and reliability in heavy-duty applications. Proper installation, regular maintenance, and adherence to torque specifications are essential for maximizing the performance and longevity of this Cummins part.