3945232
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3945232, is a specialized fastener produced by Cummins, a leading manufacturer in the commercial truck industry. This screw is integral to the assembly and maintenance of various components within commercial trucks, ensuring secure and reliable fastening solutions.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt characterized by its hexagonal head and a flange beneath the head. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area to distribute load and prevent the screw from sinking into the material ¹. This screw functions by creating a strong, secure connection between two or more components, resisting both tensile and shear forces.

Purpose and Role in Truck Operation

The 3945232 Hexagon Flange Head Cap Screw plays a significant role in the operation and maintenance of commercial trucks. It is used in applications where high strength and resistance to vibration are required. This screw helps in securing critical components, ensuring that they remain firmly in place under various operating conditions. Its design allows for easy installation and removal, facilitating routine maintenance and repairs.

Key Features

The 3945232 Hexagon Flange Head Cap Screw features a hexagonal head that provides a secure grip for tools, enhancing the efficiency of installation and removal. The flange beneath the head offers additional bearing surface, which helps in distributing the load more evenly and preventing the screw from embedding into the material. Additionally, the screw is made from high-quality materials, ensuring durability and resistance to corrosion.

Benefits

Using the 3945232 Hexagon Flange Head Cap Screw offers several advantages. Its design enhances fastening security, making it less likely for the screw to loosen over time. The flange provides added resistance to vibration, which is crucial in the dynamic environment of a commercial truck. Furthermore, the hexagonal head allows for straightforward installation and removal, reducing the time and effort required for maintenance tasks.

Installation Procedures

To ensure optimal performance and longevity, the 3945232 Hexagon Flange Head Cap Screw should be installed following these steps:

1. Ensure the mating surfaces are clean and free of debris.
2. Align the screw with the designated hole.
3. Use a torque wrench to tighten the screw to the specified torque setting, ensuring even and secure fastening.
4. Verify that the flange is flush with the surface to prevent any protrusion that could cause issues.

Troubleshooting and Maintenance

Common issues with the 3945232 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion. To address these issues:

• Regularly inspect the screw for signs of wear or corrosion.
• Re-tighten the screw if it shows signs of loosening.
• Apply an anti-seize compound to prevent corrosion and facilitate easier removal in the future.
• Replace the screw if it shows significant wear or damage.

Compatibility and Applications

The 3945232 Hexagon Flange Head Cap Screw is typically used in various applications within commercial trucks, including securing engine components, chassis parts, and other critical assemblies. It is designed to be compatible with a range of materials and applications, ensuring versatile use across different truck models.

Safety Considerations

When working with the 3945232 Hexagon Flange Head Cap Screw, it is important to observe several safety practices:

• Use the appropriate tools to avoid damaging the screw or the surrounding components.
• Wear personal protective equipment (PPE) such as gloves and safety glasses to protect against injury.
• Ensure that the work area is clean and free of hazards to prevent accidents during installation or maintenance.

Cummins 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 a strong reputation for quality, reliability, and innovation in the commercial truck industry. The company offers a comprehensive range of products and services designed to meet the diverse needs of its customers, ensuring optimal performance and durability in various applications.

Hexagon Flange Head Cap Screw (Part 3945232) Compatibility with Cummins Engines

The Hexagon Flange Head Cap Screw, part number 3945232, manufactured by Cummins, is a critical component in various engine assemblies. This screw is designed to provide secure fastening in applications requiring robust and reliable connections. Below is a detailed overview of its compatibility with the listed Cummins engines:

ISC Series Engines

• ISC CM2150
• ISC8.3 CM2250

The ISC series engines, including the ISC CM2150 and ISC8.3 CM2250, utilize the 3945232 screw in several critical applications. This screw is often used in securing components such as engine covers, brackets, and other structural parts that require a strong and durable fastening solution.

ISL Series Engines

• ISL CM2150
• ISL CM554
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9.5 CM2880 L138

The ISL series engines, which include the ISL CM2150, ISL CM554, ISL9 CM2150 SN, ISL9 CM2250, and ISL9.5 CM2880 L138, also benefit from the use of the 3945232 screw. This part is integral in securing various engine components, ensuring that the engine maintains its structural integrity and operational efficiency.

QSC and QSL Series Engines

• QSC9 CM2250/QSL9 CM2250
• QSL8.9 CM2150 L141
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM850 (CM2850)

The QSC and QSL series engines, such as the QSC9 CM2250/QSL9 CM2250, QSL8.9 CM2150 L141, QSL9 CM2250, QSL9 CM2350 L102, and QSL9 CM850 (CM2850), also incorporate the 3945232 screw in their design. This screw is used in securing various engine parts, ensuring the engine’s components are fastened securely and reliably.

The 3945232 Hexagon Flange Head Cap Screw is a versatile and essential component in the assembly and maintenance of these Cummins engines. Its use across multiple engine series underscores its importance in maintaining the structural and operational integrity of the engines.

Role of Part 3945232 Hexagon Flange Head Cap Screw in Engine Systems

In the context of engine systems, the part 3945232 Hexagon Flange Head Cap Screw is instrumental in ensuring the secure assembly and operation of various components.

Engine Brake (12V) Kit

Within the engine brake (12V) kit, the Hexagon Flange Head Cap Screw is utilized to fasten critical components that contribute to the efficient operation of the brake system. It secures the mounting brackets that hold the brake actuator in place, ensuring that the actuator can apply the necessary force to the engine’s components without shifting or loosening. This screw also plays a role in attaching the electrical connections that power the 12V system, maintaining a stable and reliable electrical interface.

Engine Brake Kit

In a standard engine brake kit, the Hexagon Flange Head Cap Screw is employed to fasten the brake components to the engine block or other structural elements. This ensures that the brake components remain firmly in place under the high stresses and vibrations experienced during operation. The screw’s design allows for easy installation and removal, facilitating maintenance and adjustments as needed.

Rocker Lever

The rocker lever, a pivotal component in the valve train of an engine, relies on the Hexagon Flange Head Cap Screw to secure it to the engine block or cylinder head. This screw ensures that the rocker lever maintains its precise alignment and operational integrity, which is essential for the accurate timing and efficiency of the valve operation.

Rocker Lever Assembly

In the rocker lever assembly, the Hexagon Flange Head Cap Screw is used to attach the rocker lever to its pivot point and to secure any additional components within the assembly, such as shims or adjusters. This ensures that the entire assembly operates as a cohesive unit, contributing to the smooth and reliable function of the valve train. The screw’s flange head provides additional surface area for torque application, reducing the risk of stripping or over-tightening during installation.

Conclusion

The 3945232 Hexagon Flange Head Cap Screw is a critical component in the assembly and maintenance of Cummins engines and commercial trucks. Its robust design, ease of installation, and resistance to vibration and corrosion make it an essential part for ensuring the secure fastening of various engine components. Proper installation and maintenance practices are crucial for maximizing the performance and longevity of this Cummins part.

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