3064320
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, Part #3064320, manufactured by Cummins, is a specialized fastener designed for use in commercial truck applications. Cummins, a well-established name in the automotive industry, is known for its high-quality components that enhance the performance and reliability of commercial vehicles. This particular cap screw is significant due to its unique design and robust construction, which contribute to the efficient operation of trucks under demanding conditions.

Basic Concepts of Twelve Point Cap Screws

A twelve point cap screw is a type of fastener that features twelve sides instead of the six found on standard hex cap screws. This design allows for a greater contact area with the wrench, reducing the likelihood of cam-out and providing a more secure grip during installation and removal ¹. In the automotive industry, twelve point cap screws are often used in applications where high torque and resistance to stripping are required.

Function and Role in Truck Operation

The Twelve Point Cap Screw, Part #3064320, plays a role in the operation of a commercial truck by securing critical components that are subject to significant stress and vibration. Its specific applications include fastening engine components, transmission parts, and chassis elements. By providing a reliable and durable connection, this cap screw contributes to the overall functionality and safety of the vehicle ².

Key Features

The Twelve Point Cap Screw, Part #3064320, is characterized by several key features. Its twelve-sided design enhances the grip during installation, reducing the risk of damage to the screw head. The screw is made from high-strength materials, ensuring it can withstand the rigors of heavy-duty applications. Additionally, its precise manufacturing tolerances ensure a secure fit and consistent performance ³.

Benefits

Using the Twelve Point Cap Screw, Part #3064320, offers several benefits. The unique twelve-point design allows for improved torque application, making it easier to achieve the required tightening specifications without stripping the screw head. The high-strength material composition provides resistance to corrosion and wear, enhancing the screw’s durability in demanding environments. Furthermore, the precise manufacturing ensures consistent performance and reliability over time.

Installation Considerations

Proper installation of the Twelve Point Cap Screw, Part #3064320, is vital to ensure secure and reliable fastening. Torque specifications should be followed closely to avoid over-tightening, which can lead to thread damage, or under-tightening, which can result in loose connections. Recommended tools include a twelve-point socket wrench to engage the screw head effectively. Best practices include cleaning the mating surfaces before installation to prevent corrosion and ensuring that the screw is aligned properly with the threaded hole.

Troubleshooting and Maintenance

Common issues with the Twelve Point Cap Screw, Part #3064320, may include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify and address these problems early. If loosening is detected, re-torque the screw to the specified value. In cases of corrosion, cleaning the affected area and applying a suitable anti-seize compound can help prevent further issues. Proper maintenance practices will prolong the service life of the cap screw and ensure continued reliable performance.

Cummins Overview

Cummins is a renowned manufacturer in the automotive industry, with a long history of producing high-quality components for commercial vehicles. The company is known for its commitment to innovation, reliability, and performance. Cummins components, including the Twelve Point Cap Screw, Part #3064320, are designed to meet the rigorous demands of heavy-duty applications, ensuring that commercial trucks operate efficiently and reliably.

Twelve Point Cap Screw 3064320 in Cummins Engines

The Twelve Point Cap Screw 3064320, manufactured by Cummins, is a critical component in several of their engine models. This screw is integral in securing various parts within the engine, ensuring structural integrity and operational efficiency.

G855

In the G855 engine, the 3064320 screw is used in several key areas, including the attachment of engine mounts and securing certain internal components. Its design allows for a tight and secure fit, which is essential for maintaining the engine’s alignment and stability.

N14 CELECT PLUS and N14 MECHANICAL

For both the N14 CELECT PLUS and N14 MECHANICAL engines, the 3064320 screw is employed in similar applications. It is used to fasten components such as the cylinder head cover and other critical engine parts. The screw’s twelve-point design provides a better grip and more even distribution of torque, which is crucial for the high-stress environments within these engines.

QSK19 CM850 MCRS and QSN14 CM876 N103

In the QSK19 CM850 MCRS and QSN14 CM876 N103 engines, the 3064320 screw is utilized in securing various engine mounts and internal brackets. Its robust construction ensures that these components remain firmly in place, even under the demanding conditions of heavy-duty operations.

QSNT14 CM876 N102

Similarly, in the QSNT14 CM876 N102 engine, the 3064320 screw is used to fasten several critical components, including engine mounts and internal brackets. The screw’s design allows for precise and secure fastening, which is essential for the engine’s overall performance and longevity.

Part 3064320 Twelve Point Cap Screw Component Usage

The part 3064320 Twelve Point Cap Screw is integral to the assembly and secure functioning of various engine components. Its design allows for a firm grip and resistance to loosening, which is essential in the dynamic environment of an engine.

Lever and Rocker Assembly

In the lever and rocker assembly, the Twelve Point Cap Screw ensures that the components remain tightly secured. This is particularly important for the rocker lever shaft, where consistent pressure and alignment are necessary for optimal performance. The screw’s ability to provide a strong hold helps maintain the precise movement required for the rocker lever to function correctly.

Mounting Applications

For mounting applications, the Twelve Point Cap Screw plays a significant role in securing the rocker lever shaft to its designated position. This ensures that the shaft remains stable under the varying loads and vibrations experienced during engine operation. The screw’s design minimizes the risk of loosening, which could lead to misalignment and subsequent performance issues.

Plumbing Connections

In plumbing applications within the engine system, the Twelve Point Cap Screw is used to secure fittings and connections. This is vital for maintaining the integrity of fuel lines and ensuring that there are no leaks. The screw’s robust design helps to withstand the pressure fluctuations common in fuel systems, providing a reliable connection point.

Fuel Drain Mechanisms

For fuel drain mechanisms, the Twelve Point Cap Screw is employed to secure components that are subject to frequent use and potential wear. Its durability and resistance to loosening ensure that the fuel drain operates efficiently, allowing for safe and effective draining of fuel when necessary. This is particularly important in maintenance procedures where secure fastening is essential to prevent accidents and ensure compliance with safety standards.

Conclusion

The Twelve Point Cap Screw, Part #3064320, is a critical component in the operation and maintenance of commercial trucks. Its unique design, robust construction, and precise manufacturing ensure reliable performance in demanding environments. Proper installation and maintenance practices are essential to maximize the service life and effectiveness of this Cummins part.