4010021
Hexagon Flange Head Cap Screw
Cummins®

The Cummins part number 4010021, known as the Hexagon Flange Head Cap Screw, is a critical component in commercial truck maintenance. Manufactured by Cummins, this screw is renowned for its robust design and reliable performance, meeting the high standards required for heavy-duty applications.

Basic Concepts

A Hexagon Flange Head Cap Screw is a 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 a larger bearing surface, distributing the load more evenly and preventing the screw from sinking into the material. In truck components, this screw is used to secure various parts, ensuring they remain firmly in place under operational stress.

Purpose and Role in Truck Operation

The 4010021 Hexagon Flange Head Cap Screw is integral to the operation and maintenance of commercial trucks. It secures critical components in areas where vibration and dynamic loads are present, such as engine mounts, chassis components, and body panels. Its design ensures that parts remain securely fastened, contributing to the overall stability and safety of the vehicle.

Key Features

The 4010021 features a hexagonal head that facilitates easy and precise tightening with standard tools. The flange beneath the head provides additional surface area, enhancing the screw’s ability to distribute loads and resist sinking. Made from high-strength materials, this screw offers durability and resistance to corrosion, making it suitable for the demanding environments encountered in commercial trucking.

Benefits

This screw offers several benefits, including enhanced fastening security due to its flange design, which prevents it from loosening under vibration. Its hexagonal head allows for efficient and consistent torque application, ensuring parts are securely fastened. Additionally, the screw’s design facilitates ease of installation and removal, reducing maintenance time and effort.

Installation and Usage Guidelines

To ensure optimal performance and longevity, the 4010021 should be installed according to the following guidelines: First, ensure the mating surface is clean and free of debris. Use a torque wrench to apply the recommended torque specification to achieve the proper clamping force without over-tightening. Regularly inspect the screw and surrounding area for signs of wear or damage, and replace as necessary to maintain secure fastening.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. To address these issues, regularly inspect screws for signs of movement or rust. If loosening is detected, re-tighten to the specified torque. In cases of corrosion, consider replacing the screw with a corrosion-resistant variant. Proper maintenance practices, such as keeping the area clean and dry, can help prolong the screw’s lifespan and ensure reliable operation.

Safety Considerations

When working with Hexagon Flange Head Cap Screws, it is important to observe safety practices to prevent accidents. Use the appropriate tools to avoid damaging the screw or the surrounding components. Wear personal protective equipment, such as gloves and safety glasses, to protect against injury. Ensure that all screws are properly tightened to the specified torque to prevent loosening and potential failure.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins is renowned for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range includes engines, powertrains, and aftermarket parts, serving a variety of industries, including commercial trucking. Cummins’ reputation for reliability and performance makes it a preferred choice for heavy-duty applications.

Cummins Engine Part 4010021: Hexagon Flange Head Cap Screw

The Cummins part number 4010021, a Hexagon Flange Head Cap Screw, is a critical component utilized across a variety of Cummins engine models. This part is designed to provide secure fastening in applications where a robust and reliable connection is essential. Here is how it integrates with specific Cummins engines:

• B3.3, ISC CM554, ISL CM554, QSC8.3 CM554, QSL9 CM554: These engines, which are part of Cummins’ mid-range and heavy-duty lineup, often require precise and durable fastening solutions. The Hexagon Flange Head Cap Screw is used in various applications within these engines, including securing components such as engine covers, brackets, and other structural parts. Its design ensures that it can withstand the operational stresses and environmental conditions these engines encounter.

• ISZ13 CM2150 Z105, QSB3.3 CM2250 EC, QSB6.7 CM2350 B105: These engines, typically found in agricultural and industrial applications, also benefit from the use of the Hexagon Flange Head Cap Screw. This part is crucial in maintaining the integrity of engine assemblies, ensuring that components remain securely fastened under varying loads and conditions. Its application in these engines often includes securing engine blocks, covers, and other critical parts.

The use of the Hexagon Flange Head Cap Screw across these engines underscores its versatility and importance in ensuring the reliability and performance of Cummins engines.

Role of Part 4010021 Hexagon Flange Head Cap Screw in Engine Systems

The 4010021 Hexagon Flange Head Cap Screw is integral to the assembly and functionality of various engine components. In the cam housing module, this screw ensures the secure attachment of the cam housing to the engine block, maintaining alignment and reducing vibrations.

Within the campaign kit, it plays a role in fastening components that are essential for engine performance upgrades or repairs, ensuring that all parts remain in place under operational stress.

For the cover components, such as those used in the front gear area, the screw provides a tight seal, preventing oil leaks and contaminants from entering the engine.

In noise reduction devices, it helps in mounting the device securely to the engine, ensuring that it functions effectively in dampening engine noise.

The fuel injection pump and fuel pump assemblies often utilize this screw to attach critical components, ensuring that the fuel delivery system operates smoothly and efficiently.

In the fuel pump kit, it secures the fuel pump to the engine block or fuel tank, guaranteeing a stable fuel supply.

The fuel supply tube connections frequently employ this screw to create a leak-proof seal, essential for maintaining fuel pressure and preventing fuel leaks.

For gauges, such as those measuring oil level, the screw ensures that the gauge is firmly mounted, providing accurate readings and reliable performance.

In the context of injectors and their associated fuel supply tubes, the screw ensures that injectors are securely fastened, which is vital for precise fuel delivery and combustion efficiency.

The long block assembly, which includes the engine block, crankshaft, pistons, and other core components, uses this screw to attach ancillary parts, ensuring structural integrity and operational stability.

The male union kit components, used in various fluid systems within the engine, rely on this screw to create secure connections, preventing leaks and ensuring fluid flow.

Lastly, in both fuel pumps and fuel injection pumps, the screw is used to attach pump components, ensuring that the pump operates within specified parameters and delivers fuel efficiently to the engine.

Conclusion

The 4010021 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks and Cummins engines. Its robust design, reliable performance, and versatile applications make it an essential part for securing critical components under operational stress. Proper installation, regular maintenance, and adherence to safety practices ensure the longevity and reliability of this Cummins part.