3092786
Fracture Resistant Screw
Cummins®

The Cummins Fracture Resistant Screw (Part #3092786) is a specialized component designed to enhance the reliability and durability of heavy-duty truck systems. This screw plays a significant role in maintaining the integrity of various truck components under demanding operational conditions. Its design and material composition are tailored to withstand high stress and prevent fractures, contributing to the overall safety and performance of heavy-duty trucks.

Basic Concepts of Fracture Resistant Screws

Fracture resistant screws are engineered to resist breaking under stress, which is particularly important in mechanical applications where components are subjected to significant loads and vibrations. These screws are typically made from high-strength materials such as alloy steels or stainless steels, which offer superior tensile strength and resistance to fatigue. The manufacturing processes, including heat treatment and precision machining, further enhance their fracture resistance. These screws are essential in applications where failure could lead to significant downtime or safety hazards ¹.

Purpose of the Cummins Fracture Resistant Screw

The Cummins Fracture Resistant Screw (Part #3092786) is specifically designed to secure critical components in heavy-duty trucks. It is used in environments where the screw is exposed to high stress, vibration, and potentially corrosive conditions. This screw ensures that components remain firmly in place, reducing the risk of mechanical failure. Its application is vital in areas such as engine mounts, transmission components, and other critical junctions where stability and durability are paramount.

Key Features

The Cummins Fracture Resistant Screw boasts several key features that enhance its performance and durability. Its design includes a robust thread profile that provides a strong grip and resists loosening over time. The material composition, typically a high-strength alloy, ensures it can withstand significant stress without fracturing. Additionally, the screw may feature a corrosion-resistant coating to protect against environmental factors, further extending its service life.

Benefits

Using the Cummins Fracture Resistant Screw in truck applications offers several benefits. It contributes to improved safety by ensuring that critical components remain securely fastened under demanding conditions. The enhanced durability of the screw reduces the frequency of maintenance interventions, leading to lower overall maintenance costs. Furthermore, the reliable performance of the screw increases operational reliability, minimizing the risk of unexpected failures and downtime.

Installation Guidelines

Proper installation of the Cummins Fracture Resistant Screw is crucial for ensuring its optimal performance and longevity. The following guidelines should be followed:

1. Ensure the mating surfaces are clean and free of debris.
2. Use the correct torque specifications to avoid over-tightening, which can lead to stress fractures, or under-tightening, which can result in loosening.
3. Apply a thread locker if specified by the manufacturer to prevent vibration-induced loosening.
4. Inspect the screw regularly for signs of wear or damage and replace it if necessary.

Troubleshooting and Maintenance

Common issues with fracture resistant screws include loosening due to vibration, corrosion, and fatigue failure. To troubleshoot these issues:

1. Check for proper torque during installation to prevent loosening.
2. Apply corrosion-resistant coatings or use screws with inherent corrosion resistance to mitigate environmental effects.
3. Regularly inspect screws for signs of fatigue or wear and replace them as needed to prevent failure.

Maintenance tips to prolong the life of the screw include:

• Routinely checking torque levels to ensure screws remain properly tightened.
• Protecting screws from corrosive environments through the use of coatings or sealants.
• Replacing screws at the first sign of damage or wear to prevent catastrophic failure.

Cummins: A Brief 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 innovation and quality in the automotive and heavy-duty truck industries. The company’s extensive product range includes engines, powertrain components, and aftermarket parts, all designed to meet the rigorous demands of heavy-duty applications. Cummins’ dedication to quality and customer satisfaction is evident in its comprehensive approach to product development and support.

Fracture Resistant Screw 3092786 Compatibility with Cummins Engines

The Fracture Resistant Screw part number 3092786, manufactured by Cummins, is designed to fit seamlessly within specific engine models. This part is engineered to enhance the durability and reliability of the engines it is used in, ensuring that it can withstand the rigors of continuous operation.

QST30 CM2350 T101 and QST30 CM552

The Fracture Resistant Screw 3092786 is compatible with the QST30 CM2350 T101 and QST30 CM552 engines. These engines are part of Cummins’ QST30 series, which is known for its robust performance and reliability in various applications. The screw is specifically designed to fit into these engines, providing a secure and reliable connection that can endure the stresses of engine operation.

The integration of the Fracture Resistant Screw 3092786 into these engines ensures that critical components remain securely fastened, reducing the risk of failure due to screw fracture. This is particularly important in high-stress environments where engine components are subjected to significant mechanical forces.

By using the Fracture Resistant Screw 3092786, engine operators can benefit from enhanced durability and reliability, ensuring that their engines continue to perform optimally over extended periods. This part is a critical component in maintaining the integrity of the QST30 CM2350 T101 and QST30 CM552 engines, contributing to their overall efficiency and longevity.

Understanding the Role of Part 3092786 Fracture Resistant Screw in Engine Systems

The part 3092786 Fracture Resistant Screw is an essential component in various engine systems, ensuring the integrity and functionality of several key components. Its role can be better understood by examining its application in the block, cylinder, cam follower assembly, and cylinder block.

Block

In the engine block, the 3092786 screw is utilized to secure various components, providing a stable and durable connection. This is particularly important in areas where the block interfaces with other parts, such as the cylinder head or sump. The fracture-resistant properties of the screw ensure that it can withstand the high stresses and vibrations inherent in engine operation, maintaining a secure fit over time.

Cylinder

Within the cylinder assembly, the 3092786 screw plays a role in attaching components such as cylinder liners or piston assemblies. Its resistance to fracture is vital in this application, as the screw must endure the cyclic loading and thermal stresses generated during combustion. This ensures that the cylinder remains securely in place, contributing to the overall efficiency and reliability of the engine.

Cam Follower Assembly

In the cam follower assembly, the 3092786 screw is used to fasten components that are subject to significant dynamic loads. The cam follower assembly is responsible for translating the motion of the camshaft into the movement of the valve train. The screw’s fracture resistance ensures that these connections remain intact under the high-frequency loading and varying forces experienced during engine operation.

Cylinder Block

The cylinder block is a central component of the engine, housing the cylinders, pistons, and other critical parts. The 3092786 screw is employed to secure various attachments to the cylinder block, such as brackets, sensors, or ancillary components. Its durability and resistance to fracture are essential in maintaining the structural integrity of the cylinder block, ensuring that all attached components remain firmly in place throughout the engine’s operational life.

By understanding the specific applications of the 3092786 Fracture Resistant Screw within these engine components, engineers and mechanics can appreciate its importance in maintaining the reliability and performance of the engine system.

Conclusion

The Cummins Fracture Resistant Screw (Part #3092786) is a critical component in enhancing the durability and reliability of heavy-duty truck systems. Its design, material composition, and application in various engine components ensure that critical connections remain secure under demanding operational conditions. Proper installation, regular maintenance, and understanding its role in engine systems are essential for maximizing the benefits of this part.