3864113
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3864113, is a component manufactured by Cummins, a well-regarded name in the automotive industry. This screw is significant in the realm of commercial trucks, where it is utilized for its robust design and reliable performance. Cummins, known for its high-quality components, ensures that this screw meets the demanding requirements of heavy-duty applications ¹.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area for load distribution and prevents the screw from being driven too far into the material. In a truck’s mechanical system, this screw is used to secure various components, ensuring they remain firmly in place under operational stress ².

Purpose and Role in Truck Operation

The 3864113 Hexagon Flange Head Cap Screw plays a specific role in the operation of a truck by securing critical components that are subject to vibration and stress. Its applications range from fastening engine parts to securing chassis components. The screw’s design ensures that these parts remain securely attached, contributing to the overall stability and reliability of the truck ³.

Key Features

The 3864113 Hexagon Flange Head Cap Screw boasts several key features that enhance its functionality and durability. Its hexagonal head design allows for precise torque application, reducing the risk of stripping or rounding. The flange characteristic provides additional bearing surface, which helps in distributing the load more evenly. Additionally, the screw is typically made from high-strength materials, ensuring it can withstand the rigors of heavy-duty use ⁴.

Benefits

Using the 3864113 Hexagon Flange Head Cap Screw offers several benefits. The screw’s design enhances stability by providing a secure fastening solution that resists loosening over time. Improved load distribution is another advantage, as the flange helps to spread the force exerted by the screw more evenly across the fastened material. Furthermore, the screw’s resistance to loosening ensures that components remain securely attached, even under dynamic conditions ⁵.

Installation and Usage

Proper installation of the 3864113 Hexagon Flange Head Cap Screw is vital for ensuring optimal performance. It is recommended to use the appropriate torque specifications provided by the manufacturer to avoid over-tightening or under-tightening. Best practices include using a torque wrench for accurate application and ensuring that the screw is installed in a clean, undamaged thread to maximize its effectiveness ⁶.

Troubleshooting and Maintenance

Common issues with the 3864113 Hexagon Flange Head Cap Screw may include loosening or corrosion. Regular inspection and maintenance can help identify these problems early. If loosening is detected, re-tightening to the specified torque is recommended. In cases of corrosion, cleaning the screw and the surrounding area, followed by reapplication of a suitable anti-seize compound, can help prevent further issues and prolong the screw’s lifespan ⁷.

Cummins Overview

Cummins is a reputable manufacturer with a long-standing history in the automotive industry. The company is known for its commitment to producing high-quality components for commercial trucks. Cummins’ reputation is built on a foundation of innovation, reliability, and customer satisfaction, making it a trusted name among fleet operators and maintenance professionals ⁸.

Hexagon Flange Head Cap Screw 3864113 in Cummins Engines

The Hexagon Flange Head Cap Screw part number 3864113, manufactured by Cummins, is a critical component in several of their engine models. This screw is designed to provide a secure fastening solution, ensuring that various engine parts remain tightly connected under operational stress ⁹.

Application in Cummins Engines

6C8.3

The 6C8.3 engine benefits from the use of the 3864113 screw in several critical areas, ensuring the integrity of the engine’s structure and components.

ISF2.8 CM2220

In the ISF2.8 CM2220 engines, specifically the F117 and F129 variants, the 3864113 screw is utilized in multiple locations to maintain the alignment and stability of key engine parts. Its robust design ensures that these components remain securely fastened, contributing to the engine’s overall performance and longevity.

QSF2.8 CM2880

The QSF2.8 CM2880 engines, including the F104, F105, F108, and F114 variants, also rely on the 3864113 screw. This screw is integral in securing various engine components, ensuring that the engine operates efficiently and reliably under different conditions.

R2.8 CM2220 R101B

The R2.8 CM2220 R101B engine incorporates the 3864113 screw in several strategic locations. Its use in this engine model helps maintain the structural integrity of the engine, ensuring that all parts function as intended without any risk of loosening or misalignment.

Role of Part 3864113 Hexagon Flange Head Cap Screw in Engine Systems

In the intricate assembly of engine systems, the part 3864113 Hexagon Flange Head Cap Screw serves as a vital fastening component. This screw is integral in securing various components, ensuring the structural integrity and operational efficiency of the engine ¹⁰.

Fuel System Integration

Within the fuel system, the Hexagon Flange Head Cap Screw is employed to fasten the fuel filter housing. This secure attachment is essential for maintaining the filter’s position and ensuring a leak-free connection, which is vital for the consistent flow of fuel to the engine. Additionally, it plays a role in attaching the fuel pump to its designated location, providing the necessary stability for the pump’s operation under varying engine loads.

Rear Gear Assembly

In the context of the rear gear assembly, the Hexagon Flange Head Cap Screw is utilized to secure components that are subject to significant stress and vibration. Its robust design ensures that these parts remain firmly in place, contributing to the smooth operation and longevity of the gear system.

Fuel Transfer Mechanisms

For fuel transfer components, the screw is instrumental in attaching parts that facilitate the movement of fuel within the system. This includes securing connections that are pivotal for maintaining pressure and flow rates, which are essential for optimal engine performance.

Overall Engine Stability

Across these applications, the Hexagon Flange Head Cap Screw contributes to the overall stability and reliability of the engine system. Its role in fastening critical components ensures that the engine operates within its designed parameters, enhancing both performance and durability.

Conclusion

The 3864113 Hexagon Flange Head Cap Screw is a critical component in the operation and maintenance of Cummins engines. Its robust design, reliable performance, and key features make it an essential part in securing various engine components, ensuring the structural integrity and operational efficiency of the engine. Proper installation, regular maintenance, and understanding its role in different engine systems are vital for maximizing the effectiveness of this Cummins part.