3093917
Hexagon Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #3093917, is a component manufactured by Cummins, a well-established name in the heavy-duty truck industry. This screw is integral to various applications within heavy-duty trucks, providing secure fastening solutions that contribute to the overall reliability and performance of the vehicle.

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 or socket, while the flange distributes the load over a larger area, reducing the risk of the screw pulling through the material. In the context of heavy-duty trucks, these screws are utilized for their robust design and ability to withstand significant stress and vibration ¹.

Purpose and Role in Truck Operation

This Cummins part serves a pivotal role in the operation and maintenance of heavy-duty trucks. It is commonly used in applications where secure and durable fastening is required, such as in the attachment of components to the truck’s frame, engine mounts, and various structural elements. Its design ensures that components remain firmly in place, even under the demanding conditions encountered by heavy-duty trucks.

Key Features

The Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal head design facilitates easy and precise tightening, while the flange provides additional surface area for load distribution. The screw is typically made from high-strength materials, ensuring it can withstand the rigors of heavy-duty truck applications. Additionally, the screw’s threading is designed to offer optimal grip and resistance to loosening, further contributing to its reliability ².

Benefits

Utilizing the Hexagon Flange Head Cap Screw in truck applications offers several advantages. The screw’s design contributes to improved fastening security, making it less susceptible to loosening due to vibration, a common issue in heavy-duty trucks. Its ease of installation and removal, thanks to the hexagonal head, allows for efficient maintenance and repair processes. Furthermore, the flange design helps prevent damage to the material being fastened, enhancing the longevity of both the screw and the components it secures.

Installation Guidelines

Proper installation of the Hexagon Flange Head Cap Screw is crucial for ensuring optimal performance and longevity. It is recommended to use a wrench or socket that fits the hexagonal head precisely to avoid damage. Torque specifications provided by the manufacturer should be adhered to, ensuring the screw is tightened to the correct level without over-tightening, which could lead to damage. It is also advisable to apply a thread locker or anti-seize compound, depending on the application, to further enhance the screw’s resistance to loosening.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws may include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues before they lead to more significant problems. If a screw is found to be loose, it should be re-tightened to the manufacturer’s specified torque. In cases of corrosion, the affected area should be cleaned, and a suitable anti-corrosion treatment applied. Replacing screws that show signs of significant wear or damage is also recommended to maintain the integrity of the fastening ³.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer with a rich history in the heavy-duty truck industry. The company is committed to quality and innovation, providing a wide range of components and solutions designed to enhance the performance, efficiency, and reliability of heavy-duty trucks. Cummins’ dedication to excellence is evident in their products, including the Hexagon Flange Head Cap Screw, which is engineered to meet the demanding requirements of heavy-duty truck applications.

Application in Cummins Engines

The Cummins part number 3093917, a Hexagon Flange Head Cap Screw, is a critical component in the assembly and maintenance of several Cummins engines. This part is designed to provide secure fastening in various engine applications, ensuring that components remain tightly secured under operational stresses.

QST30 CM2350 T101 and QST30 CM552

The Hexagon Flange Head Cap Screw (part number 3093917) is integral to the assembly of the QST30 CM2350 T101 and QST30 CM552 engines. These engines, part of the Cummins QST30 series, are known for their robust design and reliability in various applications. The screw is used in several key areas within these engines, including:

• Cylinder Head Assembly: Ensuring the cylinder heads are securely fastened to the engine block, preventing leaks and maintaining compression integrity.
• Turbocharger Mounting: Providing a reliable connection between the turbocharger and its mounting bracket, which is crucial for maintaining turbocharger efficiency and preventing failure under high-stress conditions.
• Exhaust Manifold Attachment: Securing the exhaust manifold to the engine block, which is essential for efficient exhaust gas flow and overall engine performance.

Role of Part 3093917 Hexagon Flange Head Cap Screw in Engine Systems

The part 3093917 Hexagon Flange Head Cap Screw is instrumental in ensuring the structural integrity and efficient operation of various engine components. Its application spans across multiple areas within the engine system, contributing to the overall performance and reliability of the engine.

Flywheel Assembly

In the flywheel assembly, the 3093917 screw is used to secure the flywheel to the crankshaft. This connection is vital for transmitting rotational energy from the engine to the transmission system. The screw’s design ensures a tight and durable fit, which is essential for maintaining the flywheel’s alignment and balance. Proper installation of this screw helps in reducing vibrations and ensuring smooth power transmission.

Mounting and Support Structures

The screw is also employed in the mounting of various engine components. For instance, it is used to attach the engine to the subbase or chassis. This application is significant in maintaining the engine’s position and absorbing vibrations generated during operation. The flange head of the screw provides additional surface area for distribution of clamping force, enhancing the stability of the mounting.

Power Train Integration

Within the power train, the 3093917 screw plays a role in securing components such as gears, shafts, and housings. Its use in these applications ensures that the power train components remain firmly in place, facilitating efficient power transfer from the engine to the wheels. The screw’s hexagonal flange head allows for easy tightening and removal using standard tools, making maintenance procedures more straightforward.

Package and Product Installation

During the initial installation of engine packages, this screw is often used to secure various brackets, mounts, and ancillary components. Its robust design ensures that these parts remain securely attached throughout the engine’s operational life, contributing to the longevity and reliability of the engine system.

Subbase and Support Systems

The screw is also integral in the construction of subbase and support systems. It is used to fasten support brackets, vibration dampers, and other structural elements. This application is key in maintaining the structural integrity of the engine’s support framework, which is essential for withstanding the dynamic loads and stresses encountered during engine operation.

Conclusion

In summary, the 3093917 Hexagon Flange Head Cap Screw is a versatile component that enhances the functionality and durability of various engine systems. Its applications in flywheel assemblies, mounting structures, power train integration, package installations, and support systems underscore its importance in maintaining the overall performance and reliability of the engine.