3933558
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, part number 3933558, is a component produced by Cummins, a prominent figure in the automotive and heavy-duty truck sector. This screw is essential for the assembly and upkeep of heavy-duty trucks, offering a dependable fastening solution that maintains the integrity and performance of various truck components.

Basic Concepts

A Hexagon Flange Head Cap Screw is a fastener with a hexagonal head and a flange beneath it. The hexagonal head facilitates efficient torque application with standard tools, while the flange offers a larger bearing surface to distribute the load more evenly across the fastened material. This design is advantageous in mechanical systems requiring secure and stable fastening.

Purpose and Role in Truck Operation

This Cummins part is vital for the operation and maintenance of heavy-duty trucks. It is used in areas where secure fastening is critical, such as attaching engine components, chassis parts, and other essential assemblies. Its design ensures that components remain firmly in place under various operational stresses, contributing to the truck’s overall reliability and performance.

Key Features

The 3933558 boasts several key features that enhance its performance and durability. Its hexagonal head design allows for straightforward and effective torque application, minimizing the risk of cam-out during installation. The flange beneath the head increases the bearing surface area, aiding in distributing the load more evenly and reducing the likelihood of component deformation. Additionally, the screw is made from high-quality materials that offer excellent resistance to corrosion and wear, ensuring longevity in demanding truck environments.

Benefits

Using the 3933558 offers benefits such as improved torque application due to its hexagonal head, allowing for secure fastening with standard tools. The flange design enhances resistance to loosening, maintaining a stable connection even under dynamic loads. Furthermore, the even load distribution provided by the flange contributes to the durability of the fastened components, reducing the risk of failure over time.

Installation and Usage

Proper installation of the 3933558 is vital to ensure optimal performance and longevity. It is recommended to use the appropriate torque specifications provided by the manufacturer to achieve the correct tension without over-tightening, which could lead to damage. Best practices include cleaning the fastening area to remove any debris or contaminants that could affect the screw’s grip and using a torque wrench for accurate torque application.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws may include loosening over time due to vibration or dynamic loads, and corrosion in harsh environments. Troubleshooting tips involve checking for proper torque application and ensuring that the screw and the fastened materials are compatible and clean. Regular maintenance practices, such as inspecting for signs of wear or corrosion and reapplying torque as necessary, can prolong the lifespan of the screw and ensure continued reliable performance.

Manufacturer - Cummins

Cummins, the manufacturer of the 3933558, has a long-standing reputation in the automotive and heavy-duty truck industry. With a history of innovation and commitment to quality, Cummins has established itself as a trusted provider of engine and component solutions. The company’s dedication to excellence is reflected in the design and manufacturing of its products, ensuring that they meet the rigorous demands of heavy-duty applications.

Hexagon Flange Head Cap Screw (Part 3933558) in Cummins Engines

The Hexagon Flange Head Cap Screw, identified as part 3933558, is a critical component in various Cummins engines. This screw is designed to provide a secure fastening solution, ensuring that components remain tightly secured under operational conditions.

In the B6.7S and C8.3 G engines, the 3933558 screw is utilized in areas where a robust and reliable fastening mechanism is essential. These engines benefit from the screw’s ability to withstand high torque and pressure, maintaining the integrity of the engine’s structure.

For the ISX CM870 and QSB5.9 CM550 engines, the part 3933558 is employed in similar capacities. These engines, known for their durability and performance, rely on the screw’s precision and strength to keep critical parts in place. The screw’s flange head design allows for easy access and secure fastening, which is crucial for the maintenance and longevity of these engines.

In the C GAS PLUS CM556 and L GAS PLUS CM556 engines, the 3933558 screw is used in applications where both aesthetic and functional requirements are paramount. The flange head provides a clean, flush finish, while the hexagon shape ensures a tight grip and resistance to loosening.

The L8.9G CMOH2.0 L125B engine also incorporates the 3933558 screw in its design. This engine, designed for heavy-duty applications, benefits from the screw’s ability to handle significant stress and maintain a secure fit, contributing to the overall reliability and performance of the engine.

Role of Part 3933558 Hexagon Flange Head Cap Screw in Engine Systems

The 3933558 is integral to the assembly and functionality of various engine components. Its robust design ensures secure fastening, which is essential for maintaining the integrity and performance of the engine system.

Breather and Crankcase

In the breather and crankcase systems, the Hexagon Flange Head Cap Screw is used to fasten components that manage ventilation and pressure within the crankcase. Proper sealing is vital to prevent oil leaks and maintain optimal engine performance.

Lever and Rocker

For the lever and rocker mechanisms, this screw plays a role in securing these components to their respective mounts. The stability provided by the screw ensures precise movement and reduces wear on the components, contributing to the longevity of the engine.

Engine Control Module (ECM) and Mounting

When it comes to the Engine Control Module and its mounting, the screw ensures that the ECM remains securely in place. This is important for the ECM to function correctly, as any movement can interfere with its readings and control signals.

Alternator and Refrigerant Compressor

In the alternator and refrigerant compressor assemblies, the Hexagon Flange Head Cap Screw is employed to fasten critical components. This secure attachment is necessary for the efficient operation of these systems, ensuring they can handle the stresses of continuous operation without failure.

Plumbing and Crankcase Breather

Within the plumbing and crankcase breather systems, the screw is used to connect pipes and fittings. Its flange head provides additional surface area for a tighter seal, which is essential for preventing leaks in these systems.

Recirculation and Exhaust

Finally, in recirculation and exhaust systems, the screw is utilized to fasten components that manage the flow of gases. Secure fastening is necessary to maintain the efficiency of these systems and to ensure that harmful emissions are properly managed.

Conclusion

The 3933558 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of heavy-duty trucks and Cummins engines. Its design and features contribute to the secure fastening of various engine components, ensuring the reliability and performance of the engine system. Proper installation, maintenance, and understanding of its role in different engine systems are essential for maximizing the benefits of this Cummins part.