3393897
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, identified by part number 3393897, is a component manufactured by Cummins, a well-regarded name in the automotive and heavy-duty truck industry. This screw is significant in commercial trucks due to its robust design and reliable performance, contributing to the overall efficiency and durability of truck components.

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 secure tightening and loosening using a wrench, 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, these screws are used to fasten various components, ensuring they remain securely in place under operational stress ¹.

Purpose and Role in Truck Operation

This Cummins part plays a role in the operation of a truck by securing critical components such as engine parts, chassis elements, and other structural assemblies. Its design ensures that these components remain firmly attached, which is vital for the truck’s performance and safety. The screw is particularly important in applications where vibrations and dynamic loads are present, as its flange helps to maintain a stable connection ².

Key Features

The 3393897 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise tightening with a wrench. The flange at the base of the screw provides additional contact area, enhancing the distribution of load and reducing the risk of the screw pulling through the material. Additionally, the screw is typically made from high-strength materials, ensuring durability and resistance to corrosion, which is crucial in the demanding environment of commercial trucking ³.

Benefits

One of the primary benefits of the 3393897 Hexagon Flange Head Cap Screw is its enhanced durability. The high-strength material composition allows it to withstand significant loads and stresses without failing. Additionally, the flange design reduces the likelihood of the screw loosening over time, which is a common issue with standard cap screws. The ease of installation and removal, thanks to the hexagonal head, also contributes to efficient maintenance and repair processes.

Installation and Usage

Proper installation of the 3393897 Hexagon Flange Head Cap Screw involves using the correct torque specifications to ensure the screw is tightened to the manufacturer’s recommended levels. This prevents over-tightening, which can damage the screw or the material it is fastening, and under-tightening, which can lead to loosening. Best practices include using a torque wrench for accurate tightening and ensuring the surfaces are clean and free of debris before installation.

Troubleshooting and Maintenance

Common issues with the 3393897 Hexagon Flange Head Cap Screw may include loosening due to vibrations or corrosion over time. Regular inspections can help identify these issues early. Maintenance tips include periodically checking the tightness of the screws and reapplying a thread locker if necessary to prevent loosening. Additionally, protecting the screws from corrosive environments by applying a suitable coating can enhance their longevity and performance.

Cummins Overview

Cummins is a renowned manufacturer in the automotive and heavy-duty truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance components, Cummins has established a strong reputation for excellence. The company’s dedication to advancing technology and maintaining high standards in manufacturing ensures that its products, like the 3393897 Hexagon Flange Head Cap Screw, meet the rigorous demands of commercial trucking applications.

Hexagon Flange Head Cap Screw 3393897 in Cummins Engines

The Cummins Hexagon Flange Head Cap Screw part number 3393897 is a critical component in several Cummins engine models. This screw is integral to the assembly and maintenance of these engines, ensuring secure fastening and structural integrity.

15N CM2380 M104B, 6B5.9

In the 15N CM2380 M104B and 6B5.9 engines, the 3393897 screw is used in various applications, including securing engine covers and housings. Its design allows for efficient torque transfer, which is crucial for maintaining the alignment and stability of engine components.

ISF2.8 CM2220 F117, ISF2.8 CM2220 F129

For the ISF2.8 CM2220 F117 and ISF2.8 CM2220 F129 engines, the 3393897 screw is employed in similar roles, ensuring that critical engine parts remain fastened securely. Its flange head design provides a larger surface area for better torque application, which is essential for the high-stress environments within these engines.

ISL9 CM2150 SN, L9.3 L105

In the ISL9 CM2150 SN and L9.3 L105 engines, the screw is used in applications where durability and resistance to vibration are paramount. The robust design of the 3393897 screw ensures that it can withstand the operational stresses of these engines, maintaining the integrity of the engine assembly over time.

QSF2.8 CM2880 F104, QSF2.8 CM2880 F105

The QSF2.8 CM2880 F104 and QSF2.8 CM2880 F105 engines also utilize the 3393897 screw in several key areas. Its use in these engines highlights its versatility and importance in maintaining the structural integrity of the engine components.

QSL9.3 CM2880 L113, QSM11 CM570

In the QSL9.3 CM2880 L113 and QSM11 CM570 engines, the screw is used in applications that require high precision and reliability. The 3393897 screw’s design ensures that it can handle the specific demands of these engines, providing a secure and stable fastening solution.

R2.8 CM2220 R101B

Finally, in the R2.8 CM2220 R101B engine, the 3393897 screw is used in various critical applications. Its design ensures that it can provide the necessary torque and stability required for the engine’s operation, contributing to the overall reliability and performance of the engine.

Role of Part 3393897 Hexagon Flange Head Cap Screw in Engine Systems

The part 3393897 Hexagon Flange Head Cap Screw is integral in securing various components within engine systems, ensuring stability and efficient operation.

Aftercooler

In the aftercooler system, this screw is used to fasten the aftercooler to its mounting brackets. This secure attachment is essential for maintaining the structural integrity of the aftercooler, allowing it to effectively cool the compressed air from the turbocharger before it enters the engine.

Turbocharger Arrangement

Within the turbocharger arrangement, the Hexagon Flange Head Cap Screw plays a role in securing the turbocharger to the engine block or manifold. This ensures that the turbocharger remains firmly in place, facilitating optimal airflow and boosting engine performance.

Turbocharger Connection

For the turbocharger connection, this screw is employed to fasten the turbocharger to the exhaust manifold. A secure connection is vital for maintaining the turbocharger’s efficiency and preventing leaks in the exhaust system.

Water Inlet and Drive

In systems involving a water inlet and drive mechanism, the screw is used to attach components such as the water pump to the engine block. This ensures a stable and leak-free connection, crucial for the proper circulation of coolant throughout the engine.

Water Pump

The water pump assembly often utilizes this screw to secure the pump housing to the engine. This attachment is necessary for the water pump to function correctly, ensuring consistent coolant flow and engine temperature regulation.

Heat Exchanger

In heat exchanger applications, the screw is used to fasten the heat exchanger to its mounting points. This secure attachment is important for the heat exchanger to operate efficiently, transferring heat between fluids without leakage.

Injector Mounting

For fuel injectors, the Hexagon Flange Head Cap Screw is used to mount the injectors to the engine block or cylinder head. This ensures that the injectors are held firmly in place, allowing for precise fuel delivery and combustion.

Fan Drive

In fan drive systems, this screw is utilized to secure the fan to its housing or the engine. A stable attachment is essential for the fan to operate efficiently, providing adequate airflow for engine cooling.

Conclusion

The 3393897 Hexagon Flange Head Cap Screw by Cummins is a vital component in the automotive and heavy-duty truck industry. Its robust design, reliable performance, and key role in securing critical engine components make it indispensable for maintaining the efficiency and durability of truck and engine systems. Proper installation, regular maintenance, and understanding its applications across various Cummins engine models ensure optimal performance and longevity of this essential part.