3682064
Hexagon Flange Head Cap Screw
Cummins®

The Cummins Hexagon Flange Head Cap Screw, identified by Part #3682064, is a specialized fastener designed for robust performance in commercial truck components. Cummins, a leading manufacturer in the commercial truck industry, is renowned for its commitment to quality and innovation, ensuring that its components, including the 3682064, meet the demanding requirements of truck operations ¹.

Basic Concepts

The Hexagon Flange Head Cap Screw is characterized by its hexagonal head and flange features. The hexagonal head allows for efficient torque application using standard tools, ensuring secure fastening. The flange, a flat, circular plate at the head’s base, distributes the load over a larger area, reducing the risk of the screw pulling through the material. This design enhances the screw’s stability and load-bearing capacity within a fastening system ².

Role in Truck Operation

This Cummins part plays a vital role in the operation of commercial trucks by securing various components and systems. It is commonly used in applications where high tensile strength and resistance to vibration are required. These applications include engine mounts, chassis components, and other critical areas where secure fastening is necessary to maintain truck performance and safety ³.

Key Features

The 3682064 is crafted from high-quality materials, typically alloy steel, which provides excellent strength and durability. It features a coarse thread type that allows for quick and secure fastening. The flange design not only enhances load distribution but also provides additional surface area for torque application, contributing to the screw’s overall functionality and longevity ⁴.

Benefits

Using the 3682064 offers several benefits. Its design ensures enhanced fastening security, making it less prone to loosening under vibration, a common issue in truck operations. The ease of installation and removal, facilitated by the hexagonal head, allows for efficient maintenance and repair processes. Additionally, the screw’s resistance to corrosion and wear contributes to its durability and reliability in demanding truck environments ⁵.

Troubleshooting and Maintenance

To troubleshoot common issues with the 3682064, such as loosening or corrosion, regular inspections are recommended. If loosening is detected, re-tightening the screw to the manufacturer’s specified torque settings can resolve the issue. In cases of corrosion, cleaning the screw and surrounding area, followed by the application of a suitable anti-corrosion treatment, can help maintain its performance. Regular maintenance, including inspections and proper torque application, ensures the longevity and optimal performance of the screw ⁶.

Cummins Hexagon Flange Head Cap Screw 3682064 in Engine Applications

The 3682064 is a critical component in various engine assemblies, providing secure fastening for multiple parts. This screw is designed to ensure reliable performance and durability, making it suitable for high-stress environments typical in engine applications.

ISX Series Engines

• ISX CM870
• ISX CM871
• ISX12 CM2350 X102
• ISX12 G CM2180 EJ
• ISX12/ISX11.9 CM2250
• ISX15 CM2250
• ISX15 CM2350 X101

The ISX series engines utilize the 3682064 screw in various configurations. This screw is integral in securing components such as cylinder heads, valve covers, and other critical parts, ensuring that these components remain tightly fastened under operational stresses.

QSX Series Engines

• QSX11.9 CM2250 ECF
• QSX15 CM2250
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

In the QSX series engines, the 3682064 screw is used to secure a variety of engine parts, including those in the exhaust and fuel systems. The screw’s design ensures that these components are fastened securely, contributing to the overall efficiency and reliability of the engine.

Other Cummins Engines

• F3.8 CM2350 F128C
• QSF3.8 CM2350 F107
• QSK95 CM2350 K113
• X12 CM2350 X119B
• X15 CM2350 X116B
• X15 CM2350 X123B
• X15 CM2450 X134B

The 3682064 screw is also used in other Cummins engines, such as the F3.8 CM2350 F128C and QSF3.8 CM2350 F107. In these engines, the screw is employed to secure various components, ensuring that the engine operates smoothly and efficiently. Its use in these engines highlights its versatility and importance in maintaining engine integrity.

Role of Part 3682064 Hexagon Flange Head Cap Screw in Engine Systems

The 3682064 is integral in securing and maintaining the integrity of various engine components. Its robust design ensures reliable fastening in high-stress environments.

Air Intake Manifold

In the air intake manifold, the Hexagon Flange Head Cap Screw secures the manifold to the engine block, ensuring a tight seal. This prevents air leaks, which can affect engine performance and efficiency.

Engine Control Module (ECM)

For the Engine Control Module, these screws are used to mount the ECM securely to its bracket or the vehicle’s chassis. This ensures the ECM remains stable and protected from vibrations, which could otherwise interfere with its operation.

Exhaust Manifold

In the exhaust manifold, the Hexagon Flange Head Cap Screws fasten the manifold to the engine, withstanding high temperatures and pressures. This secure attachment is vital for maintaining the manifold’s position and ensuring efficient exhaust flow.

Exhaust Recirculation (EGR)

For the Exhaust Recirculation system, these screws are employed to attach the EGR valve and associated components. Proper fastening ensures the EGR system functions correctly, reducing nitrogen oxide emissions.

Fluid Doser

In fluid doser applications, the Hexagon Flange Head Cap Screws are used to secure the doser to the exhaust system. This ensures precise fluid delivery for emission control, enhancing the system’s effectiveness.

Fuel Drain Plumbing

These screws play a role in securing fuel drain plumbing components, ensuring there are no leaks in the fuel system. This is essential for maintaining fuel integrity and system safety.

Fuel Filter

The Hexagon Flange Head Cap Screws are utilized to mount the fuel filter securely. This ensures the filter remains in place and functions correctly, providing clean fuel to the engine.

Fuel System Primer

In the fuel system primer, these screws secure the primer to the fuel system, ensuring it can effectively prime the system without leaks, which is crucial for engine start-up.

Heat Shield

Heat shields often use these screws to attach to various engine components. This secure attachment helps protect nearby parts from excessive heat, maintaining overall engine health.

Nitrogen Oxide Sensor

For nitrogen oxide sensors, the Hexagon Flange Head Cap Screws ensure the sensor is firmly mounted in place. This secure attachment is necessary for accurate readings and effective emission control.

Turbocharger

In turbocharger applications, these screws are used to secure turbocharger components, ensuring they withstand the high-speed rotations and pressures involved.

Turbocharger Arrangement

Finally, in the turbocharger arrangement, the Hexagon Flange Head Cap Screws are essential for securing the turbocharger to the engine and exhaust system. This ensures the turbocharger operates efficiently, contributing to overall engine performance.

Conclusion

The Cummins Hexagon Flange Head Cap Screw 3682064 is a critical component in the commercial truck industry, offering robust performance, durability, and reliable fastening in various engine applications. Its design and features make it an essential part for maintaining the integrity and efficiency of truck engines.