3688351
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3688351, is a specialized fastener produced by Cummins, a renowned manufacturer in the commercial truck industry. This screw is integral to the assembly and maintenance of various components in commercial trucks, ensuring secure and reliable fastening solutions.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of bolt 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 additional surface area to distribute load and prevent the screw from sinking into softer materials. Within a fastening system, this screw plays a role by securely joining components together, resisting loosening due to vibration and dynamic loads.

Purpose and Role in Truck Operation

The 3688351 Hexagon Flange Head Cap Screw is designed to play a specific role in the operation and maintenance 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 various structural elements. Its design ensures that critical components remain firmly in place, contributing to the overall safety and performance of the truck.

Key Features

The 3688351 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise tightening with standard tools. The flange beneath the head enhances the screw’s ability to distribute load, reducing the risk of damage to the fastened material. Additionally, the screw is crafted from high-quality materials, ensuring durability and resistance to corrosion. These features collectively contribute to the screw’s effectiveness and longevity in demanding truck applications.

Benefits

Using the 3688351 Hexagon Flange Head Cap Screw offers several advantages. The design of the screw enhances fastening security, making it less prone to loosening under vibration and dynamic loads. The flange provides additional surface area, which helps in distributing the load more evenly. Furthermore, the screw’s ease of installation and removal simplifies maintenance procedures, allowing for quick and efficient component changes or repairs.

Installation Guidelines

Proper installation of the 3688351 Hexagon Flange Head Cap Screw is vital for ensuring optimal performance and longevity. Begin by cleaning the mating surfaces to remove any debris or contaminants. Use a torque wrench to apply the specified torque, ensuring the screw is tightened to the manufacturer’s recommended levels. Avoid over-tightening, as this can lead to damage. Regularly inspect the screw and surrounding components for signs of wear or loosening, and re-torque 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 problems, regularly inspect screws for signs of wear or damage. If a screw appears loose, re-torque it to the specified levels. In cases of corrosion, consider replacing the screw to prevent further degradation. Maintenance tips include keeping mating surfaces clean and applying an appropriate anti-seize compound to reduce the risk of galling and facilitate easier removal in the future.

Cummins: Manufacturer Overview

Cummins is a well-established name in the automotive industry, known for its commitment to quality and innovation in manufacturing commercial truck components. With a rich history of producing reliable and high-performance parts, Cummins has built a reputation for excellence. The company’s dedication to advancing technology and maintaining stringent quality control processes ensures that its products, like the 3688351 Hexagon Flange Head Cap Screw, meet the demanding requirements of commercial truck applications.

Hexagon Flange Head Cap Screw 3688351 in Cummins Engines

The Cummins part number 3688351, a Hexagon Flange Head Cap Screw, is a critical component in several Cummins engine models. This screw is integral to the assembly and maintenance of these engines, ensuring secure fastening and structural integrity.

ISX15 CM2250 and ISX15 CM2250 SN

The ISX15 CM2250 and ISX15 CM2250 SN engines utilize the 3688351 screw in various applications. These engines are known for their robust performance and reliability, often found in heavy-duty applications. The screw’s role is to maintain the alignment and secure the components of the engine’s internal structure.

ISX15 CM2350 X101

In the ISX15 CM2350 X101 engine, the 3688351 screw is used to ensure the proper fastening of certain engine components. This engine variant is designed to deliver high power output and efficiency, making the secure fastening of parts crucial for its operation.

QSX15 CM2250 and QSX15 CM2250 ECF

The QSX15 CM2250 and QSX15 CM2250 ECF engines also incorporate the 3688351 screw. These engines are engineered for durability and performance, often used in demanding applications. The screw’s function is to maintain the structural integrity of the engine by securing various parts together.

QSX15 CM2350 X105

In the QSX15 CM2350 X105 engine, the 3688351 screw is essential for the assembly and maintenance of the engine. This engine variant is designed to provide high performance and reliability, and the screw’s role in securing components is vital for its operation.

X15 CM2350 X116B and X15 CM2350 X123B

The X15 CM2350 X116B and X15 CM2350 X123B engines both use the 3688351 screw. These engines are known for their efficiency and power, often used in various heavy-duty applications. The screw’s role is to ensure the secure fastening of components, contributing to the engine’s overall performance and longevity.

X15 CM2450 X134B

The X15 CM2450 X134B engine also incorporates the 3688351 screw. This engine variant is designed for high performance and durability, and the screw’s role in maintaining the structural integrity of the engine is crucial. The secure fastening of components ensures the engine operates efficiently and reliably.

Role of Part 3688351 Hexagon Flange Head Cap Screw in Engine Systems

Manifold Integration

In the context of engine manifolds, the part 3688351 Hexagon Flange Head Cap Screw is instrumental in securing manifold components. This screw is typically used to fasten the manifold to the engine block or other structural elements. Its hexagonal flange head design allows for efficient tightening and loosening, ensuring a secure fit that can withstand the high temperatures and pressures within the engine compartment. The screw’s design also helps in distributing the clamping force evenly, which is essential for maintaining the integrity of the manifold seal. This, in turn, ensures optimal airflow and fuel distribution, contributing to the engine’s overall performance and efficiency.

Air Intake System

Within the air intake system, the part 3688351 Hexagon Flange Head Cap Screw plays a significant role in assembling and securing various components. It is commonly used to attach the air intake housing to the engine or other mounting points. The screw’s flange head provides a broad contact surface, which enhances the stability of the connection and reduces the risk of vibration-induced loosening. This is particularly important in the air intake system, where consistent airflow is vital for engine performance. By ensuring a tight and secure fit, the screw helps maintain the structural integrity of the air intake system, allowing for efficient air delivery to the engine cylinders. This contributes to better combustion and ultimately, improved engine output.

Conclusion

The 3688351 Hexagon Flange Head Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its design, featuring a hexagonal head and a flange, ensures secure fastening and resistance to loosening under dynamic loads. The screw’s high-quality materials and precise installation guidelines contribute to its durability and reliability in demanding applications. Regular maintenance and proper installation are essential to ensure the screw’s effectiveness and longevity, ultimately supporting the safe and efficient operation of commercial trucks and engines.