3866704
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3866704, is a component manufactured by Cummins, a leading name in the commercial truck industry. This screw is significant in the realm of truck maintenance due to its robust design and reliable performance. Cummins, known for its commitment to quality and innovation, produces this screw to meet the demanding requirements of commercial truck applications.

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 to distribute load and prevent the screw from sinking into the material. Within a truck’s mechanical system, this screw plays a role in securing various components, ensuring they remain firmly in place under operational stress ¹.

Purpose and Role in Truck Operation

The 3866704 Hexagon Flange Head Cap Screw is utilized in several critical areas within commercial trucks. It is commonly employed in the fastening of engine components, chassis parts, and other structural elements where high tensile strength and resistance to vibration are required. By securely holding these components in place, the screw contributes to the overall stability and performance of the truck ².

Key Features

The 3866704 Hexagon Flange Head Cap Screw boasts several key features that enhance its functionality and durability. Its hexagonal head design allows for precise and efficient tightening, reducing the risk of stripping or rounding. The flange at the base of the screw provides additional bearing surface, which helps in distributing the load more evenly and preventing the screw from pulling through the material. Additionally, the screw is typically made from high-strength materials, ensuring it can withstand the rigors of commercial truck operation ³.

Benefits

Using the 3866704 Hexagon Flange Head Cap Screw in truck maintenance offers several advantages. The design of the screw enhances fastening security, making it less likely to loosen over time due to vibration or operational stress. Its ease of installation and removal simplifies maintenance procedures, allowing for quicker and more efficient repairs. Furthermore, the robust material composition ensures longevity, reducing the frequency of replacements and associated downtime.

Installation and Usage

Proper installation of the 3866704 Hexagon Flange Head Cap Screw is vital to ensure a secure and lasting connection. It is recommended to use the appropriate torque specifications provided by the manufacturer to avoid over-tightening, which can lead to damage, or under-tightening, which may result in insufficient fastening. Best practices include using a torque wrench for accurate application and ensuring the mating surfaces are clean and free of debris to facilitate a strong bond.

Troubleshooting and Maintenance

Common issues with the 3866704 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion over time. Regular inspection and maintenance can help identify these problems early. If corrosion is detected, cleaning the affected area and applying a suitable anti-corrosive treatment can help prolong the screw’s lifespan. Additionally, ensuring that all fasteners are tightened to the correct specifications during routine maintenance can prevent loosening and ensure optimal performance.

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 itself as a trusted provider of high-quality components for the commercial truck industry. The company’s product range includes engines, powertrain components, and aftermarket parts, all designed to deliver reliable performance and durability. Cummins’ commitment to innovation and quality ensures that its products, like the 3866704 Hexagon Flange Head Cap Screw, meet the stringent demands of commercial truck applications.

Role of Part 3866704 Hexagon Flange Head Cap Screw in Engine Systems

The 3866704 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems, ensuring optimal performance and safety.

Cooler Systems

In cooler systems, particularly those designed to manage the temperature of engine oil or transmission fluid, the Hexagon Flange Head Cap Screw is used to fasten the cooler’s mounting brackets. This secure attachment is vital for maintaining the structural integrity of the cooler, allowing it to effectively dissipate heat and protect sensitive engine components from overheating.

Fuel Systems

Within fuel systems, this screw plays a significant role in attaching fuel filters, regulators, and other ancillary components. By providing a robust connection, it ensures that fuel lines and filters remain securely in place, which is essential for maintaining consistent fuel pressure and flow. This, in turn, contributes to efficient combustion and overall engine performance.

Gauge Systems

For gauge systems, the Hexagon Flange Head Cap Screw is often employed to mount pressure sensors and temperature gauges. Accurate readings from these gauges are dependent on their secure attachment to the engine block or other relevant surfaces. The screw ensures that these sensors remain firmly in position, providing reliable data for engine monitoring and diagnostics.

Oil Level Systems

In oil level systems, this screw is used to secure oil level sensors and sender units. Proper installation of these components is essential for accurate oil level readings, which are critical for maintaining appropriate lubrication within the engine. The screw’s design allows for easy adjustment and replacement, facilitating routine maintenance and ensuring the engine operates within safe parameters.

Conclusion

The 3866704 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks and engine systems. Its robust design, ease of installation, and reliable performance make it an essential part for securing various components within these systems. Regular maintenance and proper installation practices are crucial to ensure the longevity and effectiveness of this Cummins part.