3093739
Hexagon Head Cap Screw
Cummins®

The 3093739 Hexagon Head Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins is renowned for its high-quality components that enhance vehicle performance and reliability. This screw is integral to the assembly and maintenance of commercial trucks, ensuring that various components remain securely fastened under demanding conditions.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The screw features a threaded shaft that engages with the internal threads of a nut or a tapped hole, creating a secure connection. These screws are preferred for their strength, ease of use, and the ability to distribute clamping force evenly across fastened components ¹.

Purpose of the 3093739 Hexagon Head Cap Screw in Truck Operation

This Cummins part plays a specific role in the assembly and maintenance of commercial trucks. It is used to secure critical components, ensuring they remain in place under dynamic and often harsh conditions encountered in truck operations. This screw is particularly important in applications where vibration and stress are common, as it helps maintain the integrity of the assembly ².

Key Features

The 3093739 Hexagon Head Cap Screw boasts several key features that make it suitable for demanding applications. It is constructed from high-strength materials, typically alloy steel, which provides excellent durability and resistance to wear. The screw features a fine or coarse thread, depending on the specific application, allowing it to engage securely with mating components. The hexagonal head design ensures that it can be easily tightened and loosened with standard tools, enhancing convenience during installation and maintenance ³.

Benefits

Using the 3093739 Hexagon Head Cap Screw offers several advantages. Its high-strength material ensures long-lasting performance, even under extreme conditions. The design of the screw allows for easy installation and removal, reducing downtime during maintenance. Additionally, the hexagonal head provides a secure grip, minimizing the risk of loosening due to vibration, which is a common issue in commercial truck applications ⁴.

Installation Guidelines

To ensure optimal performance and longevity, the 3093739 Hexagon Head Cap Screw should be installed following these guidelines:

1. Clean the mating surfaces to remove any debris or contaminants.
2. Apply a suitable thread locker or anti-seize compound to the threads, if recommended by the manufacturer.
3. Insert the screw into the tapped hole or nut and begin tightening using a wrench or socket.
4. Tighten the screw to the specified torque setting to ensure proper clamping force without over-tightening.
5. Double-check the installation to confirm that the screw is secure and properly aligned.

Troubleshooting Common Issues

Common problems associated with Hexagon Head Cap Screws include loosening, stripping, and corrosion. To address these issues:

• If the screw loosens, re-tighten it to the specified torque and consider applying a thread locker.
• If the screw strips, replace it with a new one of the correct size and grade.
• To prevent corrosion, ensure that the screw is made from a corrosion-resistant material and apply a protective coating if necessary.

Maintenance Tips

Regular maintenance of the 3093739 Hexagon Head Cap Screw can prevent failure and extend its service life. Here are some recommendations:

• Periodically check the tightness of the screw and re-tighten if necessary.
• Inspect the screw for signs of wear, corrosion, or damage and replace it if needed.
• Keep the mating surfaces clean and free of debris to ensure a secure connection.

Cummins: Manufacturer Overview

Cummins is a globally recognized manufacturer with a strong reputation for producing high-quality automotive components. Founded in 1919, Cummins has a long history of innovation and excellence in the engine and powertrain industry. Their commitment to quality and performance has made them a trusted name among commercial truck manufacturers and operators worldwide.

Hexagon Head Cap Screw 3093739 in Cummins Engines

The Cummins-manufactured Hexagon Head Cap Screw part number 3093739 is a critical component in several of the company’s engine models. This screw is integral to the assembly and maintenance of the ISBE CM800, QST30 CM2350 T101, and QST30 CM552 engines.

In the ISBE CM800 engine, the 3093739 screw is used in various applications where secure fastening is required. Its design ensures that it can withstand the operational stresses and environmental conditions within the engine compartment.

For the QST30 CM2350 T101 engine, the 3093739 screw plays a pivotal role in maintaining the structural integrity of the engine. Its use in this model is particularly important in areas where precise alignment and fastening are crucial for the engine’s performance and longevity.

Similarly, in the QST30 CM552 engine, the 3093739 screw is employed to secure various engine components. Its robust construction and precise fit make it an essential part of the engine’s assembly, ensuring that all parts are held firmly in place under operational conditions.

The use of the 3093739 screw across these engine models underscores its versatility and importance in Cummins’ engine designs. Its consistent application highlights the reliability and precision that Cummins demands in its engine components.

Role of Part 3093739 Hexagon Head Cap Screw in Engine Systems

The 3093739 Hexagon Head Cap Screw is integral to the assembly and operation of various engine components. Its primary function is to secure and maintain the integrity of connections within the engine system.

Balancer and Engine Balancer

In the balancer and engine balancer components, the Hexagon Head Cap Screw ensures that the balancer is firmly attached to the engine. This secure attachment is essential for the balancer to effectively counteract the vibrations produced by the engine, thereby enhancing the engine’s stability and performance.

Engine Mounting Plate

When it comes to the engine mounting plate, the Hexagon Head Cap Screw plays a significant role in attaching the engine to the vehicle’s frame. This secure connection is vital for distributing the engine’s weight and vibrations evenly across the vehicle, which contributes to the overall durability and reliability of the engine installation.

Plumbing and Fuel System Components

In the plumbing and fuel system, including the fuel filter and fuel supply, the Hexagon Head Cap Screw is used to ensure that all connections are tight and leak-free. This is particularly important in the fuel filter, where secure connections prevent fuel leaks and ensure that the filter can effectively remove contaminants from the fuel before it reaches the engine. Similarly, in the fuel supply system, the screw helps maintain a consistent fuel flow to the engine, which is essential for optimal engine performance.

By providing a robust and reliable means of attachment, the 3093739 Hexagon Head Cap Screw contributes to the efficient and safe operation of these engine components.

Conclusion

The 3093739 Hexagon Head Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its high-strength material, secure grip, and ease of installation make it an indispensable part in ensuring the reliability and performance of various engine components. Regular maintenance and proper installation are key to maximizing the lifespan and effectiveness of this Cummins part.