4900990
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, Part #4900990, is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This screw is integral to the assembly and maintenance of commercial trucks, ensuring secure fastening and reliable performance in various applications.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area to distribute load and prevent the screw from sinking into softer materials. In a truck’s mechanical system, these screws are used to secure components, ensuring structural integrity and proper function.

Purpose and Role in Truck Operation

The 4900990 Hexagon Flange Head Cap Screw plays a significant role in the operation of a truck by securing critical components such as engine parts, chassis elements, and various assemblies. Its design ensures that these components remain firmly in place under varying loads and conditions, contributing to the overall reliability and safety of the vehicle.

Key Features

The 4900990 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise torque application. The flange at the base of the screw provides additional stability and load distribution, reducing the risk of the screw pulling through the material. Made from high-quality materials, this screw offers excellent durability and resistance to corrosion, making it suitable for the demanding environments typical of commercial truck operations.

Benefits

One of the primary benefits of the 4900990 Hexagon Flange Head Cap Screw is its enhanced fastening security. The hexagonal head allows for consistent torque application, reducing the likelihood of over-tightening or under-tightening. The flange design prevents the screw from sinking into the material, ensuring a stable and secure connection. Additionally, its material properties provide resistance to loosening and corrosion, contributing to prolonged service life and reliable performance.

Installation and Usage

Proper installation of the 4900990 Hexagon Flange Head Cap Screw is crucial for optimal performance. It is recommended to use the appropriate torque specifications provided by the manufacturer to ensure the screw is tightened to the correct level without causing damage to the components or the screw itself. Best practices include cleaning the installation area to remove any debris or contaminants that could affect the screw’s performance.

Troubleshooting and Maintenance

Common issues with the 4900990 Hexagon Flange 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 specified torque can often resolve the issue. In cases of corrosion, cleaning the affected area and applying a corrosion-resistant coating can help prolong the screw’s lifespan.

Cummins Overview

Cummins is a reputable manufacturer known for its high-quality automotive components. With a long history in the industry, Cummins has established a strong reputation for producing reliable and durable parts. Their commitment to quality and innovation ensures that components like the 4900990 Hexagon Flange Head Cap Screw meet the rigorous demands of commercial truck applications.

Cummins Engine Part 4900990: Hexagon Flange Head Cap Screw

The Cummins part number 4900990, a Hexagon Flange Head Cap Screw, plays a crucial role in the assembly and maintenance of various Cummins engines. This part is integral to ensuring the structural integrity and operational efficiency of the engines it is used in.

Application in Cummins Engines

A1400 and A1700 Engines

The Hexagon Flange Head Cap Screw, part number 4900990, is utilized in both the A1400 and A1700 engines. Its primary function in these engines is to secure various components, ensuring they remain tightly fastened and properly aligned. This is particularly important in maintaining the engine’s performance and longevity.

A1400 Engine

In the A1400 engine, the 4900990 screw is often used in critical areas where high torque and stability are required. Its flange head design provides a larger bearing surface, which helps distribute the load more evenly and reduces the risk of stripping or damaging the screw. This is essential in maintaining the engine’s structural integrity under various operational conditions.

A1700 Engine

Similarly, in the A1700 engine, the 4900990 screw is employed in key locations to secure components that are subject to significant stress and vibration. The flange head and hexagon shape of the screw allow for efficient tightening and loosening, which is crucial during maintenance and repair operations. The screw’s design ensures that it can withstand the operational demands of the engine, contributing to its overall reliability and performance.

Common Usage

While the specific applications of the 4900990 screw may vary between the A1400 and A1700 engines, its role remains consistent. It is used to fasten components that require a secure and stable connection, such as engine covers, brackets, and other structural elements. The screw’s design ensures that these components remain firmly in place, even under the demanding conditions of engine operation.

The use of the 4900990 Hexagon Flange Head Cap Screw in Cummins engines underscores the importance of high-quality fasteners in maintaining engine performance and reliability. Its design and material properties make it an ideal choice for securing critical components in both the A1400 and A1700 engines.

Role of Part 4900990 Hexagon Flange Head Cap Screw in Engine Systems

The part 4900990 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems, ensuring both structural integrity and operational efficiency.

Pan Assembly Integration

In the pan assembly, the 4900990 Hexagon Flange Head Cap Screw is utilized to fasten the pan to the engine block. This secure attachment is essential for maintaining the structural stability of the pan, which houses critical engine components and fluids. The flange head design of the screw provides a larger surface area for distribution of clamping force, reducing the risk of stripping or damage to the pan material. Additionally, the hexagonal shape allows for efficient tightening using standard tools, ensuring a snug and reliable fit.

Oil System Applications

Within the oil system, the 4900990 Hexagon Flange Head Cap Screw plays a significant role in attaching oil galleries, filters, and other oil-related components. These screws are often used to secure oil filters to their housings, ensuring a leak-proof seal that is vital for maintaining oil pressure and lubrication within the engine. The flange head also helps in preventing the screw from sinking into the soft materials often used in oil filter housings, thus preserving the integrity of the seal over time.

Furthermore, in oil galleries and passages, these screws are employed to fasten components that route oil to various engine parts. Their robust design ensures that these passages remain securely attached, facilitating consistent oil flow and pressure, which are essential for the engine’s longevity and performance.

Conclusion

In summary, the 4900990 Hexagon Flange Head Cap Screw is a versatile and reliable component in engine systems, providing essential fastening solutions that contribute to the overall efficiency and durability of the engine. Its design and material properties make it suitable for the demanding environments typical of commercial truck operations, ensuring secure fastening and reliable performance in various applications.

References