3896723
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, Part #3896723 by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-respected manufacturer in the automotive industry, produces this screw to meet the demanding requirements of heavy-duty applications. This screw is integral to ensuring the secure assembly of various truck components, contributing to the overall reliability and performance of commercial vehicles.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt characterized by its hexagonal head and a flange—a flat, circular plate—attached to the underside of the head. This design allows for efficient tightening using a wrench or socket and provides a larger bearing surface that distributes the load more evenly across the fastened material. In a truck’s mechanical system, these screws play a role in securing critical components, ensuring they remain firmly in place despite the vibrations and stresses encountered during operation ¹.

Purpose and Role in Truck Operation

This Cummins part is employed in various applications within a truck’s mechanical system. It is used to fasten engine components, transmission parts, and other critical assemblies. The screw’s design ensures that these components remain securely attached, which is vital for the truck’s operation. Its role is particularly important in areas where vibrations are common, as it helps maintain the integrity of the fastened joints.

Key Features

The 3896723 features a hexagonal head that allows for straightforward and efficient tightening using standard tools. The flange provides an increased bearing surface, which helps distribute the load and reduce the risk of the screw pulling through the fastened material. Made from high-strength materials, this screw is designed to withstand the harsh conditions typical of commercial truck environments. Its unique attributes include enhanced resistance to corrosion and fatigue, contributing to its durability and reliability.

Benefits

One of the primary benefits of the 3896723 is its improved fastening security. The hexagonal head and flange design work together to provide a stable and robust connection. Additionally, the screw’s resistance to vibration ensures that fastened components remain secure over time, even under demanding operating conditions. Its longevity is further enhanced by its material composition, which is engineered to withstand the rigors of commercial truck use.

Installation Considerations

Proper installation of the 3896723 is vital to ensure optimal performance and longevity. It is important to use the correct tools to achieve the specified torque during installation. This ensures that the screw is tightened to the appropriate level, providing a secure connection without over-tightening, which could lead to damage. Additionally, ensuring that the surfaces to be fastened are clean and free of debris will help achieve a strong and lasting connection.

Troubleshooting and Maintenance

Common issues with the 3896723 may include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues before they lead to more significant problems. Signs of wear or failure, such as rust or damage to the head or flange, should be addressed promptly to prevent component failure. Maintenance tips include periodic tightening of screws in high-vibration areas and applying an anti-corrosion coating to extend the screw’s lifespan.

Cummins Overview

Cummins is a renowned manufacturer with a long-standing reputation in the automotive industry. The company is committed to quality and innovation, producing a wide range of automotive components, including the 3896723. Cummins’ history of excellence and dedication to producing reliable, high-performance parts makes it a trusted name in the industry. Their components are designed to meet the rigorous demands of commercial truck applications, ensuring durability and performance ².

Hexagon Flange Head Cap Screw 3896723 in Cummins Engines

The 3896723, manufactured by Cummins, is a critical component in several of their engine models. This part is designed to secure various engine components, ensuring stability and integrity during operation. Here’s how it fits within different Cummins engine families:

ISM Series

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

ISX Series

• ISX12/ISX11.9 CM2250

ISZ Series

• ISZ13 CM2150 Z105

L10 Series

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

M11 Series

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

QSM11 Series

• QSM11 CM570

QSZ13 Series

• QSZ13 CM2150 Z101
• QSZ13 CM2150 Z102

X12 Series

• X12 CM2670 X121B

Z13 Series

• Z13 Z108G

Role of Part 3896723 in Engine Systems

This part is integral to the assembly and maintenance of various engine components. Its design allows for secure fastening, which is essential for the reliable operation of the engine system.

Application in Specific Components

• EGR Cooler Kit: Ensures that the cooler housing is tightly secured.
• Harness and Electronic Control Module Wiring: Keeps the electrical connections stable and protected from vibrations.
• Housing and Rear Gear: Provides the necessary tension to hold these parts in place.
• PDC (Power Distribution Center): Fastens the module securely within its housing.
• Manifold and Air Intake: Maintains a sealed connection, crucial for optimal airflow and engine performance.
• Pan and Oil System: Ensures that the pan is securely attached, preventing oil leaks.

Each application of the Hexagon Flange Head Cap Screw is tailored to the specific demands of the component it is fastening, contributing to the overall reliability and performance of the engine system.

Conclusion

The 3896723 Hexagon Flange Head Cap Screw by Cummins is a vital component in the assembly and maintenance of commercial truck engines. Its design and material composition ensure secure fastening, resistance to vibration and corrosion, and long-lasting performance. Proper installation and maintenance are crucial to maximizing its benefits and ensuring the reliability of the truck’s mechanical systems.