4098089
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4098089, is a component manufactured by Cummins, a well-established name in the automotive industry. This screw is significant in the context of heavy-duty trucks, where it plays a role in ensuring the structural integrity and operational efficiency of various assemblies.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of 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 that helps distribute loads more evenly across the fastened material. In a truck’s assembly, this screw serves to secure components together, ensuring they remain in place under various operational stresses.

Purpose and Role

This Cummins part is utilized in heavy-duty trucks for applications that require secure fastening of components. It is commonly used in areas where vibrations and dynamic loads are present, such as in the engine compartment, transmission housing, and chassis components. Its role is to maintain the alignment and integrity of these parts, contributing to the overall reliability and performance of the truck.

Key Features

The 4098089 features a hexagonal head that facilitates easy and precise tightening with standard wrenches or sockets. The flange beneath the head increases the contact area with the fastened surface, enhancing stability. Additionally, the screw is made from high-strength materials, ensuring it can withstand significant tensile and shear forces. The design also includes threading that provides a secure grip on the fastened components.

Benefits

Using the 4098089 offers several advantages. The hexagonal head design allows for efficient application of torque, reducing the risk of stripping or rounding off the head during installation. The flange enhances load distribution, minimizing the stress on the fastened material. Furthermore, the screw’s resistance to loosening under vibration ensures long-term stability and reliability in heavy-duty applications.

Installation and Usage

Proper installation of the 4098089 involves using the correct torque specifications to ensure it is tightened to the manufacturer’s recommended levels. This prevents over-tightening, which could damage the screw or the fastened components, and under-tightening, which could lead to loosening over time. Best practices include using a calibrated torque wrench and following the specified torque values provided by Cummins.

Troubleshooting and Maintenance

Common issues with the 4098089 may include loosening due to vibrations or corrosion from exposure to harsh environments. Regular inspection and re-torquing can help address loosening. To prevent corrosion, applying a suitable anti-corrosion coating or using screws made from corrosion-resistant materials can be effective. Maintenance should also include checking for any signs of wear or damage to the screw and replacing it if necessary to ensure continued performance and safety.

Cummins Overview

Cummins is a renowned manufacturer in the automotive industry, particularly known for its heavy-duty truck engines and components. With a history of innovation and quality, Cummins offers a wide range of products designed to meet the demanding requirements of commercial and industrial applications. The company’s reputation for reliability and performance makes it a preferred choice among fleet operators and maintenance professionals.

Hexagon Flange Head Cap Screw (Part 4098089) in Cummins Engines

The Hexagon Flange Head Cap Screw, identified by the part number 4098089, is a component in several Cummins engine models. This part is integral to the assembly and maintenance of the engines, ensuring secure fastening and structural integrity.

QSK60 CM500 and QSK60 CM850 MCRS

In the QSK60 CM500 and QSK60 CM850 MCRS engines, the Hexagon Flange Head Cap Screw is used in various applications where a robust and reliable fastening solution is required. These engines, known for their high performance and reliability, benefit from the precision and durability of this screw. The screw’s design allows for easy installation and removal, which is crucial during routine maintenance and repairs.

QSK95 CM2350 K111 and QSK95 CM2350 K113

Similarly, in the QSK95 CM2350 K111 and QSK95 CM2350 K113 engines, the Hexagon Flange Head Cap Screw plays a vital role. These engines, which are part of the Cummins QSK95 series, are designed for heavy-duty applications. The screw’s ability to withstand high stress and provide a tight seal is essential for maintaining the engine’s operational efficiency and longevity. The use of this screw in these engines ensures that all components are securely fastened, reducing the risk of mechanical failure.

Role of Part 4098089 Hexagon Flange Head Cap Screw in Engine Systems

The 4098089 is instrumental in securing and maintaining the integrity of various engine components. In the auxiliary cooling system, this screw plays a significant role in fastening components that ensure efficient heat dissipation, thereby maintaining optimal engine temperature. Its robust design provides the necessary strength to withstand the vibrations and thermal stresses inherent in cooling systems.

In the thermostat housing, the 4098089 screw is used to secure the housing to the engine block or cylinder head. This connection is vital for the proper sealing and operation of the thermostat, which regulates coolant flow based on engine temperature. The flange head of the screw offers additional surface area for a tighter seal, reducing the risk of coolant leaks.

Furthermore, within the thermostat top-level assembly housing, the 4098089 screw ensures that the thermostat and its surrounding components are held firmly in place. This is essential for the accurate functioning of the thermostat, which opens and closes to control the flow of coolant through the engine, ensuring it operates within the desired temperature range. The screw’s hexagonal flange head allows for easy tightening and removal using standard tools, facilitating maintenance and repair processes.

Conclusion

The 4098089 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of heavy-duty trucks and Cummins engines. Its design and features ensure secure fastening, stability, and reliability under various operational stresses. Proper installation, regular maintenance, and timely replacement are essential to ensure the continued performance and safety of the vehicle.