3081349
Hexagon Head Cap Screw
Cummins®

Introduction

The Cummins 3081349 Hexagon Head Cap Screw is a specialized fastener designed for use in heavy-duty truck applications. Its purpose is to securely fasten various components within the truck’s mechanical assemblies, ensuring stability and reliability under demanding operational conditions. This screw plays a significant role in maintaining the integrity and performance of heavy-duty truck systems.

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. These screws are commonly used in mechanical assemblies to secure components together, providing a strong and durable connection. The hexagonal shape of the head ensures that the screw can be turned smoothly and with minimal risk of slipping, which is crucial in high-torque applications ¹.

Purpose and Role in Truck Operation

The Cummins 3081349 Hexagon Head Cap Screw is specifically designed to meet the rigorous demands of heavy-duty truck operation. It is used to fasten critical components such as engine parts, transmission elements, and chassis assemblies. By providing a secure and reliable connection, this screw contributes to the overall functionality and reliability of the truck. Its role is vital in ensuring that components remain firmly in place, even under extreme stress and vibration ².

Key Features

The Cummins 3081349 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. It is typically made from high-strength materials such as alloy steel, which provides excellent resistance to wear and corrosion. The screw features a coarse thread type, which allows for quick and secure fastening. Additionally, its design may include features such as a chamfered end for easy insertion and a flat underside to ensure a flush fit with the fastened surface.

Benefits

Using the Cummins 3081349 Hexagon Head Cap Screw offers several benefits. Its high-strength material composition ensures improved load distribution, reducing the risk of component failure. The secure fastening provided by the screw enhances the overall stability of the truck’s mechanical assemblies. Furthermore, its resistance to corrosion and wear contributes to a longer service life, reducing the need for frequent replacements and maintenance ³.

Installation Guidelines

Proper installation of the Cummins 3081349 Hexagon Head Cap Screw is crucial for ensuring optimal performance and longevity. To install the screw, first, ensure that the mating surfaces are clean and free of debris. Use a torque wrench to tighten the screw to the specified torque value, which is typically provided in the manufacturer’s guidelines. It is important to avoid over-tightening, as this can lead to damage or stripping of the screw. Recommended tools for installation include a socket wrench and a torque wrench.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws may include loosening over time due to vibration or corrosion. To troubleshoot these issues, regularly inspect the screws for signs of wear or damage. If a screw appears loose, it should be re-tightened to the specified torque value. Additionally, applying a thread locker can help prevent loosening. Regular maintenance practices, such as cleaning and inspecting the screws, can ensure longevity and optimal performance.

Safety Considerations

When working with Hexagon Head Cap Screws, it is important to observe several safety guidelines. Always wear appropriate personal protective equipment, such as gloves and safety glasses, to protect against injury. Handle the screws carefully to avoid damage or injury. Store the screws in a dry, secure location to prevent corrosion. Dispose of any damaged or worn screws properly, following local regulations for metal waste.

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 is committed to quality and innovation in the automotive industry. The company’s product range includes a variety of engines, components, and systems designed to meet the needs of heavy-duty truck applications. Cummins’ dedication to excellence ensures that their products, including the 3081349 Hexagon Head Cap Screw, deliver reliable performance and durability.

Cummins Hexagon Head Cap Screw 3081349 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 3081349 is a critical component in several of Cummins’ engine models. This part is integral to the assembly and maintenance of these engines, ensuring secure fastening and structural integrity.

ISM CM570 and QSM11 CM570

Both the ISM CM570 and QSM11 CM570 engines utilize the 3081349 screw in various applications. This screw is often used in the assembly of engine blocks, cylinder heads, and other critical components, providing the necessary strength and durability to withstand the operational stresses of these engines.

ISM11 CM876 SN and M11 CELECT PLUS

The ISM11 CM876 SN and M11 CELECT PLUS engines also incorporate the 3081349 screw. In these engines, the screw is typically used in the fastening of engine mounts, brackets, and other structural elements. This ensures that all parts remain securely attached, contributing to the overall stability and performance of the engine.

L10 MECHANICAL and M11 MECHANICAL

For the L10 MECHANICAL and M11 MECHANICAL engines, the 3081349 screw is essential in the assembly of various mechanical components. Its use in these engines highlights its importance in maintaining the structural integrity and operational efficiency of the mechanical parts.

QST30 CM2350 T101

The QST30 CM2350 T101 engine also relies on the 3081349 screw for its assembly. This screw is used in fastening components that are critical to the engine’s operation, ensuring that all parts are securely and reliably attached.

Role of Part 3081349 Hexagon Head Cap Screw in Engine Systems

The part 3081349 hexagon head cap screw is a versatile fastener utilized across various components within engine systems to ensure secure and reliable connections. Its application spans several key areas:

• Aftercooler: The hexagon head cap screw is employed to fasten the aftercooler to its mounting brackets, ensuring a stable and leak-free connection that is essential for efficient cooling of compressed air.

• Connections: In both air crossover and air intake systems, this screw plays a significant role in securing hoses, pipes, and fittings. It ensures that all connections remain tight and sealed, preventing air leaks that could affect engine performance.

• Electronic Control Module Kit: Within the electronic control module kit, the screw is used to mount the module securely to its housing. This ensures that the module remains in place and operates correctly under various engine conditions.

• Housing: The screw is often used to assemble and secure the housing of various engine components, such as the thermostat housing. This ensures that the housing remains intact and functions as intended.

• Interface: In components that require an interface between different materials or parts, the hexagon head cap screw provides a robust connection. This is particularly important in step time control mechanisms where precise and secure fastening is required.

• Mounting: The screw is a common choice for mounting various engine components, including the engine monitor and resistor. Secure mounting is vital to ensure these components operate correctly and withstand vibrations.

• Corrosion Resistance: In environments where corrosion is a concern, the hexagon head cap screw, often made from corrosion-resistant materials, helps maintain the integrity of connections over time. This is particularly important in components exposed to moisture or chemical agents.

Conclusion

The Cummins 3081349 Hexagon Head Cap Screw is a critical component in heavy-duty truck applications, providing secure and reliable fastening for various engine and mechanical components. Its high-strength material, resistance to corrosion, and precise design ensure optimal performance and longevity in demanding operational conditions. Proper installation, regular maintenance, and adherence to safety guidelines are essential for maximizing the benefits of this Cummins part.