3929266
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, identified by part number 3929266, is a component manufactured by Cummins, a leader in diesel engine technology. This screw is significant in the realm of commercial truck maintenance due to its role in securing various components and ensuring the structural integrity of the vehicle. Cummins, known for its commitment to quality and innovation, produces this screw to meet the demanding requirements of heavy-duty 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 mechanical systems, these screws are used to secure components, ensuring they remain in place under various operational stresses.

Purpose and Role in Truck Operation

The 3929266 Hexagon Flange Head Cap Screw serves a specific purpose in commercial trucks by securing critical components and maintaining structural integrity. It is often used in applications where vibration and dynamic loads are present, such as in the engine compartment or chassis. By providing a secure attachment point, this screw helps to ensure that components remain firmly in place, reducing the risk of failure or misalignment.

Key Features

The 3929266 Hexagon Flange Head Cap Screw features a hexagonal head design, which allows for easy and precise torque application. The flange at the base of the screw provides additional surface area, enhancing load distribution and preventing the screw from embedding into the material. Additionally, the screw is typically made from high-strength materials, such as alloy steel, to ensure durability and resistance to corrosion. These features contribute to the screw’s functionality and longevity in demanding applications.

Benefits

Using the 3929266 Hexagon Flange Head Cap Screw offers several benefits. The hexagonal head design allows for efficient torque application, ensuring that the screw is tightened to the appropriate specification. The flange characteristic enhances resistance to loosening, even under dynamic loads, which is crucial in commercial truck applications. Furthermore, the material composition of the screw provides excellent load-bearing capabilities and corrosion resistance, contributing to its overall durability and reliability.

Installation and Usage

Proper installation of the 3929266 Hexagon Flange Head Cap Screw is vital to ensure optimal performance and longevity. It is recommended to use a torque wrench to achieve the specified torque values, which can be found in the manufacturer’s guidelines. Ensuring that the screw is installed perpendicular to the surface and that the flange is in full contact with the material will help distribute the load effectively and prevent damage. Regular inspection and maintenance are also recommended to ensure the screw remains in good condition.

Troubleshooting and Maintenance

Common issues with the 3929266 Hexagon Flange Head Cap Screw may include loosening or corrosion. If loosening is detected, re-torque the screw to the specified value and inspect for any underlying issues that may be causing excessive movement. In cases of corrosion, cleaning the affected area and applying a corrosion-resistant coating can help prolong the lifespan of the screw. Regular maintenance, including inspection for signs of wear or damage, will ensure continued reliable 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 name in the commercial truck industry. The company is renowned for its expertise in diesel engine manufacturing and its commitment to quality and innovation. Cummins’ products are designed to meet the rigorous demands of heavy-duty applications, ensuring reliability and performance in various operational environments.

Engine Compatibility of Hexagon Flange Head Cap Screw (Part 3929266)

The Hexagon Flange Head Cap Screw, part number 3929266, manufactured by Cummins, is a critical component used in various engine assemblies. This part is designed to secure and stabilize different engine parts, ensuring the integrity and performance of the engine.

6B5.9 Engine

In the 6B5.9 engine, the 3929266 screw is utilized in several key areas. It is often employed to fasten components that require a secure and reliable connection, such as mounting brackets or engine covers. The precision engineering of the screw ensures that it can withstand the operational stresses and vibrations inherent in engine environments.

ISB CM850 Engine

Similarly, in the ISB CM850 engine, the 3929266 screw plays a vital role in maintaining the structural integrity of the engine. This screw is typically used in applications where high torque and durability are essential, such as securing the engine block or other heavy-duty components. The flange head design provides a larger surface area for the application of torque, enhancing the screw’s ability to hold parts firmly in place.

Grouping of Engines

Both the 6B5.9 and ISB CM850 engines benefit from the use of the 3929266 screw in their respective assemblies. The commonality in their use underscores the versatility and reliability of this component across different engine models. Whether it is for securing engine covers, mounting brackets, or other critical parts, the 3929266 screw ensures that these components remain tightly fastened, contributing to the overall performance and longevity of the engine.

Role of Part 3929266 Hexagon Flange Head Cap Screw in Engine Systems

The part 3929266 Hexagon Flange Head Cap Screw is integral to the secure assembly and operation of various engine components. Its design and functionality are tailored to withstand the demanding conditions within an engine system, ensuring reliable performance and longevity.

Connection Points

In engine systems, the Hexagon Flange Head Cap Screw is often utilized at connection points where components need to be firmly attached. This includes the linkage between the engine block and ancillary components such as the alternator or the power steering pump. The flange head provides additional surface area, enhancing the screw’s resistance to loosening under vibration, which is common in engine operation.

Air Intake System

Within the air intake system, the Hexagon Flange Head Cap Screw plays a role in securing the air filter housing to the engine compartment. This ensures a sealed environment, preventing unfiltered air from entering the engine, which could lead to decreased performance and increased wear on internal components. Additionally, it is used to attach the intake manifold to the cylinder head, ensuring a tight seal that is essential for optimal air-fuel mixture delivery.

Plumbing Connections

For plumbing connections, particularly in fuel and coolant systems, the Hexagon Flange Head Cap Screw is employed to secure fittings and hoses. Its robust design is particularly beneficial in high-pressure environments, such as fuel lines, where any leakage could pose a significant risk. In coolant systems, it ensures that the thermostat housing and radiator connections remain intact, maintaining consistent engine temperature and preventing overheating.

Exhaust Recirculation Air (EGR) System

In the Exhaust Recirculation Air (EGR) system, the Hexagon Flange Head Cap Screw is used to secure the EGR valve to the engine block or intake manifold. This connection is vital for the proper functioning of the EGR system, which recirculates a portion of the exhaust gas back into the intake manifold to reduce nitrogen oxides (NOx) emissions. A secure attachment ensures that the EGR valve operates within specified parameters, contributing to both engine efficiency and environmental compliance.

Conclusion

The 3929266 Hexagon Flange Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and engines. Its design, featuring a hexagonal head and flanged base, ensures efficient torque application and enhanced load distribution. The screw’s high-strength material composition provides durability and corrosion resistance, making it suitable for heavy-duty applications. Proper installation and regular maintenance are essential to ensure the screw’s longevity and reliability. Cummins’ commitment to quality and innovation is evident in the design and functionality of this screw, which plays a vital role in securing various engine components and maintaining the structural integrity of the vehicle.

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