3680817
Hexagon Flange Head Cap Screw
Cummins®

Introduction

This article provides an overview of the Cummins 3680817 Hexagon Flange Head Cap Screw. It covers the basic concepts, purpose, key features, benefits, and maintenance suggestions for this component, which is used in commercial trucks.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by a hexagonal head and a flange that provides additional surface area for torque application. This design allows for secure fastening and resistance to loosening. The screw is commonly used in applications requiring high strength and durability ¹.

Purpose and Function

The 3680817 Hexagon Flange Head Cap Screw plays a role in securing various components within a commercial truck. It is often used in applications where vibration and dynamic loads are present, ensuring that parts remain firmly attached. This screw is integral to the structural integrity and reliable operation of truck assemblies ².

Key Features

• Hexagonal head for easy tightening with standard tools.
• Flange provides additional torque application surface, reducing the risk of cam-out.
• High-strength material construction to withstand significant loads and stresses.
• Thread design ensures a secure fit and resistance to loosening over time.

Benefits

• Enhanced security in fastening applications due to the flange design.
• Improved resistance to vibration and dynamic loads.
• Durable construction suitable for heavy-duty truck environments.
• Easy to install and remove using common hand tools.

Troubleshooting and Maintenance

Regular inspection of the Hexagon Flange Head Cap Screw is recommended to ensure it remains securely fastened. Signs of wear, corrosion, or loosening should be addressed promptly to prevent failure. Maintenance practices include:

• Periodically checking torque settings to ensure screws are tightened to manufacturer specifications.
• Inspecting for signs of corrosion or damage and replacing screws as necessary.
• Using appropriate lubricants to facilitate easier installation and removal without compromising the screw’s integrity ³.

Role of Part 3680817 in Engine Systems

Camshaft Assembly

In the camshaft assembly, the 3680817 Hexagon Flange Head Cap Screw is utilized to fasten the camshaft to the engine block or cylinder head. This secure attachment is vital for maintaining the precise alignment and rotational stability of the camshaft. Proper fastening ensures that the camshaft can effectively control the timing of the valve operation, which is essential for the engine’s combustion process.

Camshaft Gear Connection

When connecting the camshaft gear to the camshaft, the 3680817 Hexagon Flange Head Cap Screw plays a significant role. It provides the necessary torque to keep the gear firmly in place, preventing any slippage or misalignment. This is particularly important in high-performance engines where the camshaft gear must withstand substantial forces and maintain accurate timing.

Performance Parts Integration

In the context of performance parts, the 3680817 Hexagon Flange Head Cap Screw is often used to secure aftermarket components such as upgraded camshafts, performance camshaft gears, and other enhancements. These parts are designed to improve engine efficiency and power output. The screw ensures that these performance parts are installed correctly and remain secure under the increased stress and vibrations associated with high-performance applications.

Conclusion

The Cummins 3680817 Hexagon Flange Head Cap Screw is a fundamental component in the assembly and maintenance of engine systems, contributing to the stability and performance of critical engine parts. Its design and features make it suitable for high-strength applications, ensuring reliable operation in commercial trucks and engines.