3907234
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by Part #3907234, is a component manufactured by Cummins, a prominent name in the commercial truck industry. This screw is integral to the assembly and maintenance of various truck components, ensuring the structural integrity and operational efficiency of commercial vehicles.

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 torque application using standard tools, while the flange provides additional surface area for distribution of clamping force, reducing the risk of the screw pulling through the material ¹. In mechanical systems, these screws are used to secure components together, ensuring stability and alignment.

Purpose and Role in Truck Operation

This Cummins part plays a significant role in the operation of commercial trucks. It is utilized in various applications, including securing engine components, transmission parts, and chassis assemblies. Its design ensures a secure fit, which is vital for the safe and efficient operation of the truck. The screw’s ability to withstand high levels of stress and vibration makes it suitable for use in demanding environments typical of commercial trucking ².

Key Features

The 3907234 features a hexagonal head that facilitates easy and precise tightening with common tools. The flange beneath the head enhances the screw’s clamping force distribution, minimizing the risk of damage to the fastened material. Additionally, the screw is crafted from high-quality materials, ensuring durability and resistance to corrosion, which is crucial for longevity in harsh operating conditions.

Benefits

Using this part offers several advantages. Its robust construction contributes to the durability of the fastening, while the flange design enhances resistance to vibration, a common issue in truck operations ³. The screw’s ease of installation, coupled with its reliability, makes it a preferred choice for both original equipment manufacturers and maintenance professionals.

Installation Process

Proper installation of the 3907234 involves several steps. First, ensure the mating surfaces are clean and free of debris. Use a torque wrench to apply the recommended torque specifications, avoiding over-tightening which can damage the screw or the fastened material. It is also advisable to use a thread lubricant to facilitate installation and prevent seizing.

Common Applications

The 3907234 is widely used in commercial trucks for a variety of applications. It is commonly found in engine assemblies, transmission systems, and chassis components. Its versatility and reliability make it a staple in the toolkit of truck maintenance professionals.

Troubleshooting and Maintenance

Regular inspection of the 3907234 is recommended to ensure its continued performance. Look for signs of corrosion, loosening, or damage. If any issues are detected, the screw should be replaced to maintain the integrity of the assembly. Proper maintenance practices, including regular torque checks and cleaning, can extend the lifespan of the screw.

Safety Considerations

When working with the 3907234, it is important to follow safety guidelines. Use the appropriate personal protective equipment, such as gloves and safety glasses, to prevent injury. Ensure that all tools are in good condition and suitable for the task. Adhere to torque specifications to avoid over-tightening, which can lead to component failure.

Cummins Overview

Cummins is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation for quality and innovation, Cummins has been a trusted name in the commercial truck industry for decades. The company’s commitment to excellence is evident in its wide range of components, including the 3907234, which is designed to meet the rigorous demands of commercial trucking.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw Part 3907234

The Cummins part number 3907234, a Hexagon Flange Head Cap Screw, is designed to be compatible with a range of Cummins engines. This particular screw is engineered to meet the stringent requirements of engine assembly and maintenance, ensuring reliable performance and durability.

Compatibility with Specific Engine Models

QSK78 CM500 and QSK95 CM2350 Series

The Hexagon Flange Head Cap Screw part 3907234 is specifically designed to fit within the QSK78 CM500 and QSK95 CM2350 series engines. These engines are known for their robust construction and high performance, often used in demanding applications such as marine, power generation, and industrial settings.

• QSK78 CM500: This engine model benefits from the precision and strength of the 3907234 screw, which is crucial for maintaining the integrity of the engine’s structural components.
• QSK95 CM2350 K111 and QSK95 CM2350 K113: These variants of the QSK95 CM2350 engine also utilize the 3907234 screw. The screw’s design ensures it can withstand the high stresses and temperatures encountered in these engines, contributing to their longevity and reliability.

Application and Importance

The 3907234 is integral to the assembly and maintenance of these engines. Its flange head design provides a large bearing surface, which is essential for distributing loads evenly and preventing damage to the engine’s components. The hexagon socket allows for efficient and secure tightening, which is critical in maintaining the structural integrity of the engine.

Ensuring Compatibility and Performance

When using the 3907234 screw in Cummins engines, it is essential to ensure that it is properly torqued to the manufacturer’s specifications. This helps to prevent issues such as loosening under operational stresses, which can lead to engine failure. Additionally, using genuine Cummins parts like the 3907234 screw ensures compatibility and maintains the warranty and reliability of the engine.

Role of Part 3907234 Hexagon Flange Head Cap Screw in Engine Systems

The part 3907234 is integral to the assembly and functionality of various engine components. Its design allows for secure fastening, which is essential for maintaining the structural integrity and performance of the engine.

Bracket and Lifting Applications

In brackets and lifting applications, the Hexagon Flange Head Cap Screw provides a robust connection point. This is particularly important in scenarios where vibrations and dynamic loads are present, ensuring that the bracket remains securely attached to the engine frame or other supporting structures.

Camshaft and Connecting Rod and Piston Assemblies

When used in camshaft and connecting rod and piston assemblies, the screw plays a significant role in maintaining the precise alignment and secure attachment of these components. Proper fastening is essential for the smooth operation of the engine, as any misalignment can lead to increased wear and reduced efficiency.

Cylinder Head and Head Applications

In cylinder head and head applications, the Hexagon Flange Head Cap Screw ensures that the cylinder head is tightly sealed against the engine block. This seal is vital for maintaining compression within the combustion chamber, which directly impacts engine performance and efficiency.

Auxiliary and Performance Parts

For auxiliary and performance parts, such as pumps and short engine kits, the screw is used to secure additional components that enhance engine functionality. These parts often require precise installation to ensure they operate within specified parameters, contributing to overall engine performance.

General Engine Parts

Across various engine parts, the Hexagon Flange Head Cap Screw is a common fastening solution due to its reliability and ease of use. Its flanged head design allows for better torque application, reducing the risk of stripping or over-tightening, which can be detrimental to both the screw and the fastened components.

Conclusion

In summary, the part 3907234 is a versatile and essential component in engine systems, contributing to the secure assembly and reliable operation of numerous engine parts. Its design and features make it a critical component in the maintenance and assembly of commercial trucks and engines, ensuring durability, performance, and safety.