3697706
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3697706, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is integral to the maintenance and operation of commercial trucks, providing secure fastening solutions that contribute to the overall reliability and performance of truck components.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient tightening and loosening using a wrench or socket, while the flange provides additional surface area to distribute load and prevent the screw from pulling through the material. In the context of truck components, these screws are used to secure various parts, ensuring they remain firmly in place under operational stresses ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is commonly used in applications where secure fastening is required, such as attaching brackets, panels, and other components that are subject to vibration and stress. Its design ensures that these parts remain securely fastened, contributing to the truck’s overall structural integrity and performance.

Key Features

The 3697706 boasts several key features that enhance its functionality and durability. Its hexagonal head design allows for easy and efficient tightening using standard tools, while the flange provides additional stability and load distribution. The screw is typically made from high-strength materials, ensuring it can withstand the rigors of commercial truck operation. These features collectively contribute to the screw’s reliability and longevity in demanding applications ².

Benefits

Using this part in truck maintenance offers several benefits. The screw’s design enhances fastening security, making it less likely to loosen over time due to vibration. Its ease of installation and removal simplifies maintenance procedures, reducing downtime. Additionally, the high-strength material properties ensure durability, providing long-lasting performance in commercial truck applications.

Installation and Usage Guidelines

Proper installation of the 3697706 is vital to ensure optimal performance and longevity. Begin by selecting the appropriate size and grade of screw for the application. Use a wrench or socket to tighten the screw to the specified torque, ensuring it is secure without over-tightening, which could damage the screw or the material it is fastening. Regularly inspect the screw for signs of wear or loosening, and re-tighten as necessary to maintain secure fastening.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. To address these issues, regularly inspect screws for signs of wear or corrosion and replace them if necessary. Ensure that screws are tightened to the correct torque specification to prevent loosening. Applying a thread locker can also help maintain secure fastening in high-vibration environments. Proper maintenance practices will prolong the life of the screw and ensure continued reliable performance ³.

Cummins: Manufacturer Overview

Cummins is a reputable manufacturer in the commercial truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance truck components, Cummins has established a strong reputation among truck operators and maintenance professionals. The company’s dedication to excellence is evident in its rigorous manufacturing processes and continuous investment in research and development, ensuring that its products meet the demanding requirements of commercial truck applications.

Hexagon Flange Head Cap Screw 3697706 in Cummins Engines

The Cummins part number 3697706, a Hexagon Flange Head Cap Screw, is a critical component in various Cummins engines. This screw is designed to secure different parts within the engine assembly, ensuring structural integrity and proper functioning. Here is how it fits into specific Cummins engines:

ISG11 CM2880 G108, ISG12 CM2880 G107, ISG12 G CMOH6.0 G111

In the ISG11 CM2880 G108, ISG12 CM2880 G107, and ISG12 G CMOH6.0 G111 engines, the 3697706 is used to fasten components that require a secure and reliable connection. These engines, known for their robust performance, benefit from the screw’s ability to withstand high stress and maintain tight tolerances.

QSG12/X12 CM2350 G110

The QSG12/X12 CM2350 G110 engine also utilizes the 3697706 screw to secure various parts. This engine, designed for efficiency and durability, relies on the screw’s precision and strength to ensure that all fastened components remain stable under operational conditions.

X11 CM2670 X126B, X12 CM2350 X119B, X12 CM2670 X121B, X13 CM2670 X122B

In the X11 CM2670 X126B, X12 CM2350 X119B, X12 CM2670 X121B, and X13 CM2670 X122B engines, the 3697706 plays a crucial role in maintaining the integrity of the engine assembly. These engines, which are part of the X series, are known for their versatility and performance. The screw’s design ensures that it can handle the specific demands of these engines, providing a reliable fastening solution.

The use of the 3697706 screw across these engines highlights its versatility and importance in Cummins engine assemblies. Its design and material properties make it suitable for a wide range of applications, ensuring that the engine components remain securely fastened and operational.

Role of Part 3697706 Hexagon Flange Head Cap Screw in Engine Systems

The part 3697706 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems. Its design and functionality are tailored to ensure robust fastening and reliable performance under demanding conditions.

Block Assembly

In the block assembly, the Hexagon Flange Head Cap Screw is used to fasten critical components such as the cylinder head to the engine block. This secure attachment is essential for maintaining the structural integrity of the engine. The screw’s flange head provides additional surface area, enhancing the stability and preventing loosening due to vibrations. This is particularly important in high-performance engines where the block experiences significant stress and movement.

Cylinder Head Mounting

When mounting the cylinder head, the Hexagon Flange Head Cap Screw plays a key role in ensuring a tight and even seal between the head and the block. Proper sealing is vital for maintaining compression within the combustion chambers, which directly affects engine efficiency and power output. The screw’s design allows for precise torque application, ensuring that the cylinder head is mounted with the correct tension. This precision is essential for optimal engine performance and longevity.

General Applications

Beyond specific components like the block and cylinder head, the Hexagon Flange Head Cap Screw is also used in various other applications within the engine system. It secures intake and exhaust manifolds, valve covers, and other ancillary components. Its versatility and reliability make it a preferred choice for engineers and mechanics looking to ensure that all engine components are securely fastened.

The use of the Hexagon Flange Head Cap Screw in these applications underscores its importance in maintaining the overall integrity and performance of the engine system.

Conclusion

The 3697706 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks and Cummins engines. Its design, featuring a hexagonal head and flanged base, ensures secure fastening and reliable performance under demanding conditions. The screw’s key features, including ease of use, high-strength materials, and precise torque application, contribute to its durability and effectiveness in various engine applications. Proper installation, regular maintenance, and adherence to torque specifications are essential for maximizing the screw’s performance and longevity. Cummins’ commitment to quality and innovation is reflected in the design and functionality of this critical fastening component.