4386129
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4386129, is a component manufactured by Cummins. This screw is significant in the realm of commercial trucks due to its robust design and reliable performance. Cummins, a well-established name in the industry, ensures that this part meets the high standards required for heavy-duty applications 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 torque application using standard tools, while the flange provides additional surface area to distribute load and prevent the screw from sinking into the material ². In a truck’s mechanical system, this screw plays a role in securing various components, ensuring they remain firmly in place under operational stress.

Purpose and Role in Truck Operation

This Cummins part is utilized in several areas within a truck’s operation. It is commonly employed in the assembly of engine components, chassis parts, and other structural elements where secure fastening is required. Its design ensures that connected parts remain stable, contributing to the overall integrity and performance of the truck ³.

Key Features

The 4386129 boasts several key features that enhance its functionality. Its hexagonal head design allows for straightforward installation and removal using common tools. The flange beneath the head provides additional bearing surface, which helps in distributing the load and preventing the screw from pulling through the material. Additionally, the screw is crafted from high-quality materials, ensuring it can withstand the rigors of heavy-duty use ⁴.

Benefits

This screw offers several benefits that make it a preferred choice for truck applications. Its durable construction ensures long-lasting performance, while the flange design reduces the likelihood of loosening over time. The ease of installation and removal also contributes to efficient maintenance and repair processes.

Installation Process

Proper installation of the 4386129 involves several steps to ensure optimal performance. Begin by selecting the appropriate size and grade of screw for the application. Use a torque wrench to apply the recommended torque specification, avoiding over-tightening which can damage the screw or the material. Ensure that the flange is seated properly against the surface to maximize load distribution.

Troubleshooting and Maintenance

Common issues with the 4386129 may include loosening or corrosion. Regular inspection and maintenance can help identify these problems early. If loosening is detected, re-torque the screw to the manufacturer’s specifications. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosive treatment can help prevent further degradation.

Safety Considerations

When working with the 4386129, it is important to follow safety guidelines to ensure personal protection and component integrity. Use the correct tools and torque specifications to avoid damage. Wear appropriate personal protective equipment (PPE) during installation and maintenance to protect against injury.

Cummins Overview

Cummins is a renowned manufacturer with a long-standing reputation for producing high-quality truck components. The company’s commitment to innovation and excellence is reflected in its wide range of products, including the 4386129. Cummins’ expertise in the industry ensures that their components are designed to meet the demanding requirements of commercial truck applications.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw Part 4386129

The Cummins Hexagon Flange Head Cap Screw part number 4386129 is a critical component designed to fit seamlessly with several of Cummins’ engine models. This part is engineered to provide robust fastening solutions, ensuring secure connections in various engine applications.

ISX12 Series Engines

The ISX12 series engines, including the ISX12 CM2350 X102 and ISX12 G CM2180 EJ, benefit from the use of the 4386129 screw. These engines are known for their high performance and reliability, and the screw’s precision engineering ensures that it can withstand the demanding conditions within these engines.

ISX12/ISX11.9 Series Engines

The ISX12/ISX11.9 CM2250 engine is another model that integrates the 4386129 screw effectively. This engine variant is designed to deliver exceptional power and efficiency, and the screw’s design supports the engine’s structural integrity by providing a reliable fastening solution.

QSX11.9 Series Engines

The QSX11.9 CM2250 ECF engine also utilizes the 4386129 screw. This engine is engineered for heavy-duty applications, and the screw’s durability and strength make it an ideal choice for securing components under high stress and load conditions.

Each of these engines, while differing in specific applications and performance characteristics, shares a common requirement for high-quality fastening solutions. The 4386129 screw meets these needs by offering precise fitment and reliable performance across the specified engine models.

Role of Part 4386129 Hexagon Flange Head Cap Screw in Engine Systems

Housing

In engine systems, the housing serves as a protective enclosure for various components, ensuring they are safeguarded from external elements and contaminants. The 4386129 plays a significant role in securing the housing to its designated position. By providing a robust and reliable fastening solution, this screw ensures that the housing remains firmly in place, maintaining the integrity of the enclosed components. Its flange head design offers additional surface area for distribution of clamping force, reducing the risk of stripping or damage to the housing material. This results in a more secure and durable attachment, contributing to the overall stability and performance of the engine system.

Flywheel

The flywheel is a pivotal component in engine systems, responsible for storing rotational energy and smoothing out the power delivery between engine cycles. The 4386129 is often utilized in the assembly and securing of the flywheel to the crankshaft or other related components. Its hexagonal flange head allows for easy and efficient tightening using common hand tools, ensuring a precise and consistent clamping force. This is essential for maintaining the alignment and balance of the flywheel, which directly impacts the engine’s operational smoothness and efficiency. The screw’s design also facilitates easy inspection and maintenance, allowing for quick adjustments or replacements when necessary, thereby enhancing the longevity and reliability of the engine system.

Conclusion

The 4386129 Hexagon Flange Head Cap Screw is a vital component in the realm of commercial trucks, offering robust fastening solutions that ensure the stability and performance of various engine systems. Its design, characterized by a hexagonal head and flange, provides efficient torque application and load distribution, making it an essential part for securing critical components in heavy-duty applications. Cummins’ commitment to quality and innovation is evident in the engineering and manufacturing of this screw, ensuring it meets the high standards required for commercial truck operations.