4900347
Hexagon Flange Head Cap Screw
Cummins®

The Hexagonal Flange Head Cap Screw, identified by part number 4900347, is a component manufactured by Cummins, a well-established name in the automotive industry. This screw plays a significant role in the assembly and maintenance of commercial trucks, ensuring both the structural integrity and efficient operation of various truck components.

Basic Concepts

A Hexagonal Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange beneath the head. This design allows for efficient tightening and loosening using a wrench or socket, while the flange provides additional surface area to distribute the load and prevent the screw from sinking into the material ¹. Within a truck’s mechanical system, these screws are used to secure components, ensuring they remain in place under various operational stresses.

Purpose and Role in Truck Operation

This Cummins part is specifically designed to secure components within a commercial truck. Its role is to provide a reliable fastening solution that maintains the structural integrity of the truck’s assemblies. By securely attaching parts such as engine mounts, chassis components, and other critical elements, this screw helps ensure that the truck operates safely and efficiently.

Key Features

The 4900347 features a hexagonal flange head, which allows for easy and precise tightening. It is typically made from high-strength materials, such as alloy steel, to withstand the rigors of commercial truck operation. The flange design enhances the screw’s ability to distribute loads evenly, reducing the risk of component failure. Additionally, the screw may have a zinc-plated or other corrosion-resistant coating to extend its service life in harsh environments ².

Benefits

The benefits of using the 4900347 include improved fastening security, enhanced resistance to vibration, and increased longevity in demanding conditions. The screw’s design ensures a strong and stable connection between components, minimizing the risk of loosening over time. Its material composition and coatings contribute to durability, making it suitable for long-term use in commercial trucks.

Installation and Usage

Proper installation of this part is vital 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 components being fastened. Best practices include using a torque wrench to achieve the recommended torque values and periodically checking the screws for tightness during routine maintenance.

Troubleshooting and Maintenance

Common issues with this part may include loosening due to vibration or corrosion from exposure to the elements. Regular inspection and maintenance can help identify and address these issues promptly. If corrosion is detected, cleaning the affected area and reapplying a protective coating can help prolong the screw’s service life. In cases of loosening, re-tightening to the specified torque is recommended.

Cummins Overview

Cummins is a renowned manufacturer in the automotive industry, with a history of producing high-quality components for commercial vehicles. The company is known for its commitment to innovation, reliability, and performance. Cummins’ reputation is built on a legacy of delivering durable and efficient parts that meet the demanding requirements of commercial truck operations.

Cummins Hexagonal Flange Head Cap Screw 4900347 in Engine Applications

The Cummins Hexagonal Flange Head Cap Screw part number 4900347 is a critical component in various engine applications. This part is designed to ensure secure fastening and alignment, which is essential for the proper functioning of the engine. The engines that utilize this screw include the A1400, A1700, A2000, and A2300 series.

A1400 and A1700 Engines

In the A1400 and A1700 engines, the 4900347 screw is often used in applications where high torque and durability are required. These engines, known for their reliability and efficiency, benefit from the precision and strength provided by this screw. The hexagonal flange head design allows for easy and efficient tightening with a wrench, ensuring that the components remain securely fastened under operational stresses.

A2000 and A2300 Engines

For the A2000 and A2300 engines, the 4900347 screw is utilized in similar contexts, but the increased power and complexity of these engines necessitate even more robust fastening solutions. The screw’s design ensures that it can withstand the higher loads and stresses associated with these larger engines. Its use in these applications highlights its versatility and importance in maintaining engine integrity.

The consistent use of the 4900347 screw across these engine models underscores its critical role in ensuring the reliability and performance of Cummins engines.

Role of Part 4900347 Hexagonal Flange Head Cap Screw in Engine Systems

In the intricate assembly of engine systems, the 4900347 plays a significant role in ensuring the structural integrity and efficient operation of various components.

Cylinder Head Assembly

Within the cylinder head assembly, the 4900347 screw is employed to secure components such as valve covers, intake manifolds, and exhaust manifolds. Its hexagonal flange head design allows for a firm grip, facilitating easy installation and removal using standard tools. This ensures that the cylinder head remains sealed and pressurized, which is essential for optimal combustion efficiency and engine performance.

Head Gasket Installation

The head gasket is a vital component that seals the cylinder head to the engine block, preventing coolant and oil from mixing and ensuring proper compression within the cylinders. The 4900347 screw is used to clamp the cylinder head onto the engine block with the correct torque, which is essential for maintaining the integrity of the head gasket seal. Proper sealing is necessary to avoid leaks and maintain engine efficiency.

Cylinder Block Integration

In the cylinder block, the 4900347 screw is often used to attach various brackets, sensors, and other ancillary components. These attachments are necessary for the monitoring and regulation of engine performance. The screw’s design ensures that these components are held securely in place, even under the high vibrations and temperatures typical of engine operation.

Conclusion

By understanding the applications and importance of the 4900347 Hexagonal Flange Head Cap Screw in these engine components, engineers and mechanics can better appreciate its role in maintaining the overall functionality and reliability of engine systems.