4976931
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4976931, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is integral to the assembly and maintenance of various truck components, ensuring reliable performance and durability.

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 the load more evenly. This design is particularly beneficial in mechanical systems where stability and resistance to loosening are paramount ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation of commercial trucks. It is commonly used in applications where secure fastening is required, such as in the attachment of engine components, chassis parts, and other critical assemblies. Its design ensures that it remains firmly in place even under significant stress and vibration, which are common in truck operations ².

Key Features

The 4976931 boasts several key features that contribute to its functionality and durability. Its hexagonal head design allows for easy and secure tightening using common tools. The flange beneath the head provides additional stability by distributing the load over a larger area, reducing the risk of the screw pulling through the material. Additionally, the screw is made from high-quality materials that offer excellent resistance to corrosion and wear, ensuring long-term reliability in demanding environments ³.

Benefits

The benefits of using the 4976931 include enhanced stability due to its flange design, which prevents the screw from loosening over time. The hexagonal head allows for efficient torque application, making installation and removal straightforward. Furthermore, the high-quality material used in its construction ensures durability and resistance to environmental factors, contributing to the overall reliability of the truck’s components.

Installation and Usage

Proper installation of the 4976931 is vital to ensure optimal performance and longevity. It should be installed using the appropriate torque specifications to avoid over-tightening, which can lead to damage, or under-tightening, which can result in loosening. Using the correct tools for the hexagonal head will facilitate secure and efficient installation.

Troubleshooting and Maintenance

Common issues with the 4976931 may include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues promptly. If corrosion is detected, the affected area should be cleaned, and a corrosion-resistant coating may be applied. Ensuring that the screw is properly torqued during installation can prevent loosening.

Cummins Overview

Cummins is a renowned manufacturer in the commercial truck industry, known for its high-quality engines and components. With a history spanning several decades, Cummins has established a strong reputation for reliability and innovation. The company offers a wide range of products designed to meet the demanding requirements of commercial trucking, ensuring that trucks operate efficiently and reliably.

Hexagon Flange Head Cap Screw in ISV Engines

The part 4976931, a Hexagon Flange Head Cap Screw, manufactured by Cummins, is a critical component in the assembly of ISV (Intelligent Systems for Vehicles) engines. This part is integral to the structural integrity and operational efficiency of the engine, ensuring that various components are securely fastened and aligned.

In the context of ISV engines, the Hexagon Flange Head Cap Screw is utilized in several key areas. Its design allows for a robust connection between parts, providing both strength and ease of assembly. The flange head design ensures a broad surface area for torque application, which is essential for maintaining the tightness of connections under operational stresses.

The application of this screw in ISV engines is not limited to a single function. It is employed in various configurations, including securing engine covers, mounting brackets, and other critical assemblies. The precision and reliability of the Hexagon Flange Head Cap Screw are paramount, as any failure in these connections can lead to significant engine malfunctions.

Given the importance of these screws in the ISV engine architecture, Cummins ensures that each part meets stringent quality standards. This guarantees that the screws will perform reliably under the demanding conditions of engine operation, contributing to the overall durability and performance of the engine.

Hexagon Flange Head Cap Screw (Part 4976931) in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 4976931, is integral in securing various components within engine systems. Its design ensures a robust and reliable fastening solution, accommodating the dynamic and demanding environment of engine operation.

Cylinder Head Assembly

In the cylinder head assembly, the Hexagon Flange Head Cap Screw is employed to secure the head to the cylinder block. This connection is vital for maintaining the integrity of the combustion chamber and ensuring proper sealing. The flange head design provides additional surface area for distribution of clamping force, reducing the risk of stripping and enhancing the screw’s holding power.

Drive Systems

For drive systems, particularly those involving the camshaft and front sprocket, the Hexagon Flange Head Cap Screw plays a significant role. It is used to fasten the camshaft drive components, ensuring precise alignment and secure attachment. This is essential for the smooth operation of the valve train and overall engine performance. Similarly, in the front sprocket assembly, these screws help in maintaining the sprocket’s position relative to the crankshaft, contributing to consistent power transmission.

Front Gear and Housing

Within the front gear and housing components, the Hexagon Flange Head Cap Screw is utilized to secure various covers and plates. This includes the timing cover, which houses the front gear and associated components. The screw’s design allows for easy installation and removal, facilitating maintenance and repair processes. Additionally, it ensures that the housing remains intact under operational stresses, protecting internal components from damage.

Long Block Kit

In a long block kit, which typically includes the cylinder block, crankshaft, pistons, and cylinder head, the Hexagon Flange Head Cap Screw is used extensively. It secures the cylinder head to the block, attaches various covers and plates, and fastens drive system components. The screw’s reliability and strength are paramount in ensuring that the long block kit functions as a cohesive unit, ready for integration into the complete engine assembly.

Conclusion

Overall, the Hexagon Flange Head Cap Screw (part 4976931) is a versatile and essential component in engine systems, providing the necessary fastening solution for a wide range of critical applications. Its design, quality, and reliability make it a cornerstone in the assembly and maintenance of commercial truck engines, ensuring optimal performance and durability.