4940240
Hexagon Flange Head Cap Screw
Cummins®

The 4940240 Hexagon Flange Head Cap Screw is a specialized fastener produced by Cummins, a well-regarded manufacturer in the automotive industry. This screw is designed for use in commercial trucks, where it plays a significant role in securing various components and assemblies. Its robust construction and precise engineering make it suitable for the demanding conditions encountered in heavy-duty truck 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 the load and prevent the screw from sinking into softer materials. In mechanical assemblies, these screws are used to secure components that require a high degree of stability and resistance to loosening.

Purpose and Role in Truck Operation

In the context of commercial trucks, the 4940240 Hexagon Flange Head Cap Screw serves to secure critical components and assemblies. Its design ensures that parts remain firmly in place under various operational stresses, contributing to the overall functionality and reliability of the truck. By providing a secure connection, this screw helps maintain the integrity of truck systems, ensuring they operate efficiently and safely.

Key Features

The 4940240 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise torque application. The flange at the base of the screw enhances its performance by distributing the load more evenly and preventing it from embedding into the material it is securing. Additionally, the screw is made from high-quality materials that offer excellent durability and resistance to corrosion, making it well-suited for the harsh environments typical of commercial truck operations.

Benefits

Using the 4940240 Hexagon Flange Head Cap Screw offers several advantages. Its design allows for improved torque application, ensuring that components are securely fastened. The flange provides additional resistance to loosening, which is particularly important in dynamic truck environments. Furthermore, the high-quality materials used in its construction enhance the structural integrity of truck assemblies, contributing to their longevity and reliability.

Installation Considerations

Proper installation of the 4940240 Hexagon Flange Head Cap Screw is vital to ensure optimal performance and longevity. It is important to use the correct torque specifications to avoid over-tightening, which can lead to damage, or under-tightening, which can result in insufficient securing. Additionally, ensuring that the surfaces where the screw will be installed are clean and free from debris will help achieve a secure and lasting connection.

Troubleshooting and Maintenance

Common issues with the 4940240 Hexagon Flange Head Cap Screw may include loosening or corrosion. Regular inspections can help identify these problems 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 suitable corrosion-resistant coating can help prevent further degradation. Routine maintenance practices, such as checking for proper torque and ensuring the screw remains free from contaminants, are recommended to maintain its performance.

Compatibility and Applications

The 4940240 Hexagon Flange Head Cap Screw is typically used in various applications within commercial truck systems. Its design and construction make it compatible with a wide range of truck models and components, ensuring versatile use across different assemblies.

Manufacturer Overview - Cummins

Cummins is a renowned manufacturer with a strong reputation in the automotive industry. The company has a long history of producing high-quality truck components, known for their reliability and performance. Cummins’ commitment to excellence is evident in their rigorous manufacturing processes and dedication to innovation, making them a trusted name in the field of commercial truck parts.

Cummins Engine Part 4940240: Hexagon Flange Head Cap Screw

The Cummins part number 4940240, a Hexagon Flange Head Cap Screw, is a critical component used in various Cummins engines. This screw is designed to secure different parts of the engine together, ensuring structural integrity and proper functioning. Here’s how it fits with the listed engines:

15N CM2380 M104B, 6B5.9, 6C8.3, B3.3, B6.7

The Hexagon Flange Head Cap Screw is utilized in these engines to fasten components such as cylinder heads, valve covers, and other critical parts. Its design allows for a secure and tight fit, which is essential for maintaining engine performance and preventing leaks.

B6.7 CM2350 B135B, B6.7 CM2670 B153B, B6.7 CM2670 B164C

In these engines, the screw is often used to secure the cylinder heads and other heavy-duty components. The flange head design provides a larger surface area for the wrench, making it easier to apply the necessary torque without rounding off the screw head.

F3.8 CM2350 F120B, F3.8 CM2620 F137B, F4.5 CM2620 F139B

For these engines, the Hexagon Flange Head Cap Screw is employed in various applications, including securing intake manifolds, exhaust manifolds, and other critical engine parts. The screw’s robust design ensures that these components remain tightly fastened under all operating conditions.

ISB (Chrysler), ISB CM2150, ISB CM850, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN

In the ISB series engines, the screw is used to secure a variety of components, including the cylinder heads, valve covers, and other structural parts. The flange head design allows for easier and more efficient tightening, which is crucial for maintaining the engine’s structural integrity.

ISB4.5 CM2350 B104, ISB5.9 CM2880 B127, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISB6.7 G CM2180 B118

These engines also utilize the Hexagon Flange Head Cap Screw for securing critical components such as cylinder heads and valve covers. The screw’s design ensures that these parts remain securely fastened, which is essential for the engine’s overall performance and longevity.

ISBE CM2150, ISBE CM800, ISBE4 CM850, ISC CM2150, ISC CM554

In the ISBE and ISC series engines, the screw is used to fasten various components, including the cylinder heads and other structural parts. The flange head design provides a larger surface area for the wrench, making it easier to apply the necessary torque without damaging the screw head.

Role of Part 4940240 Hexagon Flange Head Cap Screw in Engine Systems

The 4940240 Hexagon Flange Head Cap Screw is a versatile fastener utilized across various components within engine systems to ensure secure and reliable connections. Its application spans multiple critical areas, contributing to the overall functionality and durability of the engine.

Adapter and Front Drive Arrangement

In the adapter and front drive arrangement, the 4940240 screw is employed to fasten components that interface with the front drive system. This includes securing the adapter to the front gear housing, ensuring a stable connection that can withstand the dynamic forces generated during operation.

Crankcase Breather and Lifting Arrangement

The screw plays a significant role in the crankcase breather system by securing the breather housing to the engine block. Additionally, in the lifting arrangement, it is used to attach the lifting bracket to the engine, providing a secure point for lifting and moving the engine during maintenance or installation.

Auxiliary Cooling System and Air Cleaner

Within the auxiliary cooling system, the 4940240 screw is utilized to mount the thermostat housing and water pump, ensuring efficient coolant flow. In the air cleaner assembly, it secures the air intake manifold to the cylinder block, maintaining a sealed and efficient air intake path.

Connecting Rod and Piston Connection

In the connecting rod and piston connection, the screw is used to fasten components within the long block, ensuring that the connecting rod is securely attached to the piston and crankshaft. This is essential for the smooth operation of the engine’s combustion cycle.

Exhaust Outlet and Drive Accessory

At the exhaust outlet, the screw secures the exhaust manifold to the cylinder block, ensuring a tight seal to prevent exhaust leaks. For drive accessories, it is used to mount components such as the alternator and fuel pump to the engine, guaranteeing they remain in place under operational stress.

Fuel Filter and Engine Control Module Mounting

The 4940240 screw is also integral in mounting the fuel filter to the engine, ensuring a stable fuel supply line. Furthermore, it secures the engine control module and fuel control module to their respective housings, providing a reliable platform for these sensitive electronic components.

Plumbing and Support Rear Engine

In plumbing applications, such as the charge air bypass and cylinder block connections, the screw ensures that all connections are leak-free and robust. Finally, in the support rear engine arrangement, it is used to attach various support structures, enhancing the engine’s structural integrity.

The 4940240 Hexagon Flange Head Cap Screw’s widespread use across these components underscores its importance in maintaining the structural and functional integrity of engine systems.

Conclusion

The 4940240 Hexagon Flange Head Cap Screw is a critical component in the automotive industry, particularly for commercial trucks and Cummins engines. Its robust design, precise engineering, and high-quality materials make it an essential fastener for securing various components and assemblies. Proper installation, regular maintenance, and understanding its applications across different engine systems are key to ensuring the longevity and reliability of truck and engine operations.