3954863
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, part number 3954863, manufactured by Cummins, is a specialized fastener designed for heavy-duty truck applications. This screw is integral to the secure assembly of various truck components, ensuring both structural integrity and operational reliability. Cummins, a renowned name in the automotive industry, is known for its commitment to producing high-quality components that meet the demanding requirements of heavy-duty vehicles ¹.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange beneath the head. The hexagonal head allows for efficient tightening and loosening using a wrench, while the flange provides additional surface area for distribution of the clamping force, reducing the risk of the screw pulling through the material. This design is particularly beneficial in applications where high torque and secure fastening are required ².

Purpose and Role in Truck Operation

The 3954863 Hexagon Flange Head Cap Screw plays a significant role in the operation of heavy-duty trucks by securing critical components and assemblies. It is used in applications where the fastener must withstand substantial loads and vibrations, such as in the engine compartment, chassis, and other structural elements. By providing a secure and stable connection, this screw helps maintain the structural integrity of the truck, ensuring safe and reliable performance ³.

Key Features

The 3954863 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise tightening with a wrench. The flange beneath the head enhances the screw’s ability to distribute clamping force, reducing the likelihood of the screw pulling through the material. Additionally, the screw is crafted from high-strength materials, ensuring durability and resistance to corrosion, which is vital for withstanding the harsh conditions encountered in heavy-duty truck applications.

Benefits

The 3954863 Hexagon Flange Head Cap Screw offers several benefits, including enhanced fastening security due to its hexagonal head and flange design. This design helps prevent loosening under vibration, a common issue in heavy-duty truck applications. The screw’s material properties contribute to its durability, allowing it to perform reliably in demanding environments. Furthermore, the screw’s resistance to corrosion ensures longevity, reducing the need for frequent replacements.

Installation Considerations

Proper installation of the 3954863 Hexagon Flange Head Cap Screw is crucial for optimal performance and longevity. It is important to follow torque specifications provided by the manufacturer to ensure the screw is tightened to the correct level, avoiding over-tightening, which can lead to damage, or under-tightening, which can compromise the fastening security. Using the appropriate tools and techniques during installation will help achieve a secure and lasting connection.

Troubleshooting and Maintenance

Common issues with the 3954863 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion over time. Regular inspections can help identify these issues early. If loosening is detected, re-tightening the screw to the specified torque can often resolve the issue. In cases of significant corrosion, replacement of the screw may be necessary to maintain structural integrity and performance. Adhering to recommended maintenance procedures will help prolong the screw’s lifespan and ensure continued reliable operation.

Manufacturer - Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and excellence, Cummins has established a strong reputation in the automotive industry for producing high-quality components. The company’s commitment to quality and performance is evident in its wide range of products designed for heavy-duty applications, including the 3954863 Hexagon Flange Head Cap Screw. Cummins’ dedication to excellence ensures that its components meet the rigorous demands of heavy-duty truck operations.

Role of Part 3954863 Hexagon Flange Head Cap Screw in Engine Systems

Part 3954863, the Hexagon Flange Head Cap Screw, is integral to the assembly and performance of various engine systems. Its primary function is to secure components, ensuring they remain firmly in place under operational conditions.

In damper systems, this screw is used to attach the damper to the engine block or other supporting structures. This secure attachment is essential for the damper to effectively absorb vibrations and reduce mechanical stress on the engine.

Within vibration control mechanisms, the screw helps in mounting vibration isolators or mounts. These mounts are designed to minimize the transmission of vibrations from the engine to the vehicle’s frame, enhancing ride comfort and reducing wear on connected parts.

For performance-enhancing parts, such as cold air intakes or performance exhaust systems, the Hexagon Flange Head Cap Screw is employed to ensure these components are tightly secured. This not only prevents them from dislodging but also maintains the integrity of the sealed systems, which is vital for optimal engine performance.

Conclusion

In summary, the 3954863 Hexagon Flange Head Cap Screw plays a significant role in maintaining the structural integrity and operational efficiency of various engine components, contributing to the overall performance and durability of the engine system. Proper installation, regular maintenance, and adherence to manufacturer specifications are essential for ensuring the longevity and reliability of this critical component.