4900223
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4900223, 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 reliable performance and durability. Cummins, known for its robust and high-quality parts, provides this screw as part of its extensive range of automotive solutions.

Basic Concepts

Hexagon Flange Head Cap Screws are designed with a hexagonal head and a flange that sits against the surface to which the screw is being fastened. This design allows for efficient torque application and prevents the screw from sinking into the material. Typically made from high-strength materials such as alloy steel, these screws are engineered to withstand significant stress and provide secure fastening in critical applications. In the automotive industry, they are commonly used in applications requiring strong, permanent fastening, such as in engine components, chassis assemblies, and various structural parts ¹.

Purpose and Function

This part plays a role in the operation of a truck by providing a secure and durable fastening solution. It is specifically designed to support systems that require high tensile strength and resistance to vibration, such as engine mounts, transmission housings, and frame components. By ensuring that these critical parts remain firmly in place, the screw contributes to the overall stability and performance of the truck.

Key Features

The 4900223 features a hexagonal flange head, which allows for easy installation and removal using standard tools. The flange provides additional surface area, enhancing the screw’s resistance to loosening under vibration. The material composition typically includes alloy steel, which offers superior strength and durability. The threading specifications are designed to ensure a tight and secure fit, minimizing the risk of loosening over time.

Benefits

One of the primary advantages of the 4900223 is its enhanced durability. The high-strength material and precise threading ensure that the screw can withstand significant loads and stresses. Additionally, the flange head design provides resistance to loosening, which is particularly important in applications subject to vibration. The screw also offers ease of installation and removal, making it a practical choice for both initial assembly and maintenance procedures.

Installation and Usage

Proper installation of this Cummins part is vital to ensure secure fastening. It is recommended to use a torque wrench to apply the specified torque, which ensures that the screw is tightened to the correct level without over-tightening. Best practices include cleaning the fastening area to remove any debris or contaminants that could affect the screw’s performance. Additionally, using a thread locker can provide extra security in applications where vibration is a concern ².

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. Regular inspection and maintenance can help identify these problems early. If a screw shows signs of loosening, it should be re-tightened to the specified torque. Corrosion can be mitigated by ensuring that the fastening area is clean and dry, and by applying an appropriate corrosion-resistant coating if necessary. Replacing screws that show significant wear or damage is also recommended to maintain the integrity of the fastening ³.

Cummins Overview

Cummins is a well-established company with a long history in the commercial truck industry. Founded in 1919, Cummins has built a reputation for producing high-quality engines and components. The company offers a wide range of products, including engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial trucking. Cummins’ commitment to innovation and quality has made it a trusted name among truck manufacturers and fleet operators.

Cummins Engine Part 4900223: Hexagon Flange Head Cap Screw

The Cummins part number 4900223, a Hexagon Flange Head Cap Screw, is a critical component in the assembly and maintenance of various Cummins engines. This part is designed to provide secure fastening in applications where a robust and reliable connection is essential.

Application in A1400 and A1700 Engines

In the A1400 and A1700 engines, the Hexagon Flange Head Cap Screw is utilized in several key areas. These engines, known for their reliability and efficiency, often require precise and durable fastening solutions to maintain structural integrity and operational efficiency. The screw’s flange head provides a large bearing surface, which is crucial for distributing loads evenly and preventing damage to the mating surfaces.

Application in A2000 and A2300 Engines

The A2000 and A2300 engines also benefit from the use of the Hexagon Flange Head Cap Screw. These engines, typically larger and more powerful, demand components that can withstand higher stresses and torque. The screw’s design ensures that it can maintain a tight and secure connection, even under demanding conditions. Its use in these engines is particularly important in areas where vibration and thermal expansion are significant factors.

Common Usage Across Engine Models

Across the A1400, A1700, A2000, and A2300 engines, the Hexagon Flange Head Cap Screw is employed in various applications, including:

• Cylinder Head Fastening: Ensuring the cylinder heads are securely attached to the engine block, preventing leaks and maintaining compression.
• Engine Block Assembly: Providing a reliable connection between different sections of the engine block, contributing to the overall structural integrity.
• Accessory Mounting: Securing various engine accessories and components, ensuring they remain in place during operation.

The consistent use of the Hexagon Flange Head Cap Screw in these engines underscores its importance in maintaining the performance and longevity of Cummins engines. Its design and material properties make it an ideal choice for applications requiring high strength and durability.

Role of Part 4900223 Hexagon Flange Head Cap Screw in Engine Systems

The part 4900223 is integral to the assembly and operation of various engine components. It is commonly used to secure the crankshaft pulley to the crankshaft. This screw ensures a robust connection, allowing the pulley to withstand the dynamic forces generated during engine operation.

In the context of the crankshaft pulley, the Hexagon Flange Head Cap Screw provides a secure attachment point. This is essential for maintaining the pulley’s alignment and ensuring it operates smoothly. The screw’s design allows for easy installation and removal, facilitating maintenance and repair processes.

Additionally, the screw plays a role in the overall integrity of the pulley system. By firmly attaching the pulley to the crankshaft, it helps in transmitting power efficiently from the engine to other components such as the alternator, power steering pump, and air conditioning compressor. This transmission of power is vital for the proper functioning of these auxiliary systems.

The use of the Hexagon Flange Head Cap Screw in these applications underscores its importance in maintaining the structural and functional reliability of engine systems. Its ability to provide a strong, durable connection is key to the seamless operation of the crankshaft pulley and, by extension, the entire engine assembly.

Conclusion

The 4900223 Hexagon Flange Head Cap Screw is a vital component in the assembly and maintenance of Cummins engines, particularly in the A1400, A1700, A2000, and A2300 models. Its design, featuring a hexagonal flange head and high-strength alloy steel material, ensures secure fastening and resistance to vibration and corrosion. Proper installation and maintenance practices are essential to maximize the screw’s performance and longevity, contributing to the overall reliability and efficiency of the engine systems.