3425470
Hexagon Head Cap Screw
Cummins®

The 3425470 Hexagon Head Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial truck applications. Cummins, a well-established name in the commercial truck industry, produces a range of components that ensure the reliability and efficiency of heavy-duty vehicles. This Cummins part plays a significant role in the assembly and maintenance of various truck parts.

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 machinery and vehicles due to their robust design and ability to withstand high levels of stress. Mechanically, the hexagonal head provides a larger surface area for the wrench to grip, reducing the risk of rounding off the head during use. The cap screw design, with its threaded shank, allows it to be driven into a pre-drilled hole, securing components together firmly ¹.

Purpose of the 3425470 Hexagon Head Cap Screw in Truck Operations

This part is utilized in various aspects of commercial truck operations. It plays a role in securing critical components such as engine parts, transmission systems, and chassis assemblies. Its design ensures that these components remain firmly in place under the demanding conditions encountered in commercial trucking, contributing to the overall structural integrity and performance of the vehicle ².

Key Features

The 3425470 Hexagon Head Cap Screw boasts several key features that enhance its functionality 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, which allows for quick and secure fastening. The hexagonal head is designed to prevent cam-out, ensuring that the screw can be tightened or loosened with minimal risk of damage. Additionally, the cap screw design ensures that the screw sits flush with the surface, reducing the risk of interference with other components ³.

Benefits

Using this Cummins part offers several benefits. Its high-strength material composition ensures enhanced structural integrity, making it suitable for applications where durability is paramount. The design of the screw facilitates ease of installation, allowing for quick and efficient assembly. Furthermore, the hexagonal head and coarse thread work together to provide resistance to loosening, ensuring that the screw remains securely in place over time.

Installation and Usage

Proper installation of the 3425470 Hexagon Head Cap Screw is crucial for ensuring its effectiveness. It is recommended to use a torque wrench to achieve the correct tightening specifications, which can typically be found in the vehicle’s maintenance manual or on the packaging of the screw. The use of the appropriate wrench or socket is also important to prevent damage to the screw’s head. Following these guidelines will help ensure that the screw is installed correctly and functions as intended.

Troubleshooting and Maintenance

Common issues with the 3425470 Hexagon Head Cap Screw may include loosening or corrosion. Regular inspection and maintenance can help identify these issues early. If loosening is detected, re-tightening the screw to the recommended torque specifications is advised. In cases of corrosion, cleaning the screw and surrounding area, followed by the application of a suitable anti-corrosive coating, can help prevent further degradation. Adhering to these maintenance practices will help ensure the longevity and performance of the screw.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. Founded in 1919, Cummins has built a reputation for innovation, quality, and reliability in the commercial truck industry. The company offers a wide range of products designed to meet the needs of various applications, from on-highway to off-highway and industrial uses. Cummins’ commitment to excellence is evident in its extensive product line, which includes engines, powertrains, and aftermarket parts, all engineered to deliver superior performance and durability.

Hexagon Head Cap Screw 3425470 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 3425470 is a critical component in several Cummins engine models. This screw is utilized in the assembly and maintenance of various engine parts, ensuring structural integrity and operational efficiency.

Engine Models Utilizing 3425470

QSV81G, QSV91-G4 CM558/CM700 V102, QSV91G, QSW/QSV82, QSW27, QSW36, QSW73

This part is integral to the assembly of these engines, serving multiple purposes:

• Mounting and Securing Components: This screw is often used to mount and secure various engine components, ensuring they remain firmly in place during operation.
• Fastening Panels and Covers: It is frequently employed to fasten panels and covers, providing a secure and reliable connection.
• Internal Fastening: In some instances, the screw is used for internal fastening, securing parts within the engine that are not externally visible.

Application in Specific Engines

• QSV81G and QSV91G: These engines utilize the 3425470 screw in several key areas, including the fastening of internal brackets and panels.
• QSV91-G4 CM558/CM700 V102: This model incorporates the screw in both external and internal applications, ensuring the stability of various components.
• QSW/QSV82, QSW27, QSW36, QSW73: These engines also rely on the 3425470 screw for mounting and securing parts, contributing to the overall durability and performance of the engine.

The consistent use of the Hexagon Head Cap Screw 3425470 across these engine models highlights its importance in maintaining the structural integrity and operational efficiency of Cummins engines.

Role of Part 3425470 Hexagon Head Cap Screw in Engine Systems

This part is integral to the assembly and functionality of various engine components. Its primary role is to secure and maintain the structural integrity of these components, ensuring they operate efficiently and reliably.

Motor

In the motor assembly, the Hexagon Head Cap Screw is used to fasten components such as the motor housing to the frame. This secure attachment is essential for maintaining alignment and preventing vibrations that could lead to mechanical failure. Additionally, it ensures that electrical connections remain intact, which is vital for the motor’s performance.

Starting System

Within the starting system, the Hexagon Head Cap Screw plays a significant role in attaching the starter motor to the engine block. This secure connection is necessary for the proper transmission of torque from the starter motor to the flywheel, enabling the engine to start smoothly. The screw also helps in maintaining the electrical integrity of the system by ensuring that all connections are firm and free from corrosion.

Starter Flange Cover

The starter flange cover is another component where the Hexagon Head Cap Screw is extensively used. It secures the cover to the starter motor, protecting internal components from debris and moisture. This protection is essential for the longevity and reliability of the starter motor.

Starting Assembly Motor

In the starting assembly motor, the Hexagon Head Cap Screw is utilized to fasten various sub-components together. This includes securing the solenoid to the motor housing and ensuring that all electrical terminals are firmly in place. The secure attachment provided by the screw is essential for the efficient operation of the starting assembly, as it ensures that all parts work in unison without any risk of detachment or misalignment.

Starting Motor

Finally, within the starting motor itself, the Hexagon Head Cap Screw is used to attach the motor’s internal components, such as the gear housing and the armature. This ensures that all moving parts are held in place, reducing the risk of mechanical failure during operation. The screw also plays a role in maintaining the electrical connections within the motor, which is crucial for its efficient functioning.

Conclusion

Overall, the 3425470 Hexagon Head Cap Screw is a fundamental component in the assembly and operation of various engine systems, providing the necessary structural integrity and secure connections required for reliable performance.