4928946
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4928946, is a component manufactured by Cummins, a well-regarded name in the automotive and heavy-duty truck industries. This screw is significant in heavy-duty truck applications due to its robust design and reliable performance. Cummins, known for its commitment to quality and innovation, produces this screw to meet the demanding requirements of truck maintenance and repair ¹.

Basic Concepts

Hexagon Flange Head Cap Screws are designed with a hexagonal head, a flange, and a threaded shank. The hexagonal head allows for efficient torque application using standard tools, while the flange provides a larger bearing surface that distributes load more evenly, reducing the risk of damage to the fastened material ². In the automotive industry, these screws are commonly used for fastening components that require high strength and resistance to loosening, such as engine parts, chassis components, and body panels.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in heavy-duty trucks by securing critical components that are subject to significant stress and vibration. Its design ensures that fastened parts remain securely in place, contributing to the overall functionality and performance of the vehicle. By maintaining the integrity of these connections, the screw helps ensure the truck operates efficiently and safely under various conditions ³.

Key Features

The primary characteristics of the 4928946 Hexagon Flange Head Cap Screw include its hexagonal head design, which allows for easy and precise tightening with standard wrenches or sockets. The flange feature provides additional surface area, enhancing the screw’s ability to distribute load and resist loosening. The cap screw construction ensures a strong, threaded connection that can withstand high tensile forces. These features collectively enhance the screw’s performance and reliability in demanding applications ⁴.

Benefits

Using the 4928946 Hexagon Flange Head Cap Screw in heavy-duty truck applications offers several advantages. The screw’s design provides improved fastening strength, making it less likely to loosen over time compared to standard screws. Its resistance to corrosion and durability under demanding conditions ensure long-lasting performance, reducing the need for frequent replacements. These benefits contribute to the overall reliability and maintenance efficiency of heavy-duty trucks ⁵.

Installation and Usage

Proper installation of the 4928946 Hexagon Flange Head Cap Screw is crucial for optimal performance. It should be installed using the appropriate torque specifications to ensure a secure fit without over-tightening, which could damage the screw or the fastened material. Best practices include using the correct tools and following manufacturer guidelines to achieve the desired torque. Regular inspections during maintenance procedures can help identify any issues early, ensuring the screw continues to perform effectively ⁶.

Troubleshooting and Maintenance

Common issues with the 4928946 Hexagon Flange Head Cap Screw may include loosening, corrosion, or damage. Troubleshooting these problems involves inspecting the screw and the fastened components for signs of wear or damage. If corrosion is present, cleaning the affected areas and applying a suitable corrosion-resistant coating can help. Regular maintenance practices, such as periodic tightening and inspection, can prolong the screw’s lifespan and reliability, ensuring it continues to perform under demanding conditions ⁷.

Cummins Overview

Cummins Inc. is a leading manufacturer in the automotive industry, with a history of producing high-quality components for heavy-duty applications. The company is known for its commitment to innovation, quality, and customer satisfaction. Cummins offers a wide range of products, including engines, filtration systems, and aftermarket parts, designed to meet the rigorous demands of the automotive and heavy-duty truck sectors. Their reputation for excellence is built on a foundation of continuous improvement and a dedication to providing reliable, high-performance solutions ⁸.

Cummins Engine Compatibility with Part 4928946

The Cummins part 4928946, a Hexagon Flange Head Cap Screw, is designed to fit seamlessly within a range of Cummins engines. This particular screw is integral to the assembly and maintenance of these engines, ensuring secure fastening and reliable performance.

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines are part of the Cummins B Series, known for their robust design and efficiency. The Hexagon Flange Head Cap Screw (part 4928946) is utilized in these engines to secure various components, ensuring that parts remain tightly fastened under operational stresses. This screw is particularly important in maintaining the integrity of the engine’s structure and ensuring smooth operation ⁹.

ISB3.9 CM2220 B107 and QSB3.9 CM2880 B138 Engines

The ISB3.9 CM2220 B107 and QSB3.9 CM2880 B138 engines are part of the Cummins ISB and QSB Series, respectively. These engines are designed for a variety of applications, from industrial to agricultural use. The Hexagon Flange Head Cap Screw (part 4928946) plays a crucial role in these engines by providing a secure fastening solution for critical components. Its design ensures that the screw can withstand the operational demands of these engines, contributing to their overall durability and performance ¹⁰.

Hexagon Flange Head Cap Screw in Engine Systems

The part 4928946 Hexagon Flange Head Cap Screw is integral to the secure assembly and operation of various engine components. Its robust design ensures reliable fastening in high-stress environments.

Turbocharger Arrangement

In turbocharger setups, this screw is used to fasten the turbocharger to the engine block or manifold. It ensures that the turbocharger remains securely attached, allowing it to efficiently compress the air entering the engine. This secure attachment is vital for maintaining the turbocharger’s alignment and operational integrity ¹¹.

Manifold Connections

The screw plays a significant role in securing the manifold to the engine block. Whether it is an intake or exhaust manifold, the screw ensures a tight seal, preventing any leaks that could affect engine performance. It also helps in withstanding the high temperatures and pressures within the manifold ¹².

Air Intake System

Within the air intake system, the screw is employed to secure components such as the air filter housing and intake ducts. This ensures that the air flow into the engine is uninterrupted and that all components remain firmly in place despite vibrations and movement ¹³.

Injector Plumbing

For the fuel injection system, the screw is used to fasten injector plumbing components, including fuel rails and injector holders. This secure attachment is essential for maintaining the integrity of the fuel delivery system, ensuring consistent fuel pressure and flow to the injectors ¹⁴.

Exhaust System

In the exhaust system, the screw is utilized to secure exhaust manifolds, catalytic converters, and other components. It ensures that the exhaust gases are directed efficiently away from the engine, maintaining the structural integrity of the exhaust path ¹⁵.

General Plumbing Connections

Across various plumbing connections within the engine, such as coolant and oil lines, the screw provides a reliable fastening solution. It ensures that these systems remain leak-free and operate under the required pressures and temperatures ¹⁶.

Fuel System Integration

Within the fuel system, the screw is used to secure fuel lines, pumps, and filters. This ensures that the fuel system remains intact, providing a consistent supply of fuel to the engine under all operating conditions ¹⁷.

Conclusion

The Hexagon Flange Head Cap Screw, part 4928946, serves as a fundamental component in the assembly and secure operation of numerous engine systems, contributing to the overall efficiency and reliability of the engine. Its robust design and reliable performance make it an essential part for heavy-duty truck applications, ensuring that critical components remain securely fastened under demanding conditions.