3937692
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3937692, is a component manufactured by Cummins. This screw is significant in the realm of commercial truck maintenance due to its robust design and reliable performance. Cummins, a well-regarded name in the automotive industry, ensures that this part meets high standards of quality and functionality ¹.

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 torque application using standard tools, while the flange provides additional surface area to distribute load and prevent the screw from sinking into the material. Within mechanical systems, these screws are used to secure components together, ensuring stability and integrity under various operational conditions ².

Purpose and Role in Truck Operation

The 3937692 Hexagon Flange Head Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is utilized in various truck components where secure fastening is required. This includes applications in the engine, transmission, and chassis, where the screw helps maintain the structural integrity and alignment of parts. Its design ensures that components remain firmly in place, even under the stress of heavy-duty operations.

Key Features

The 3937692 Hexagon Flange Head Cap Screw boasts several key features that contribute to its functionality and durability. Its hexagonal head design allows for easy and precise tightening using common tools. The flange at the base of the screw provides additional surface area, which helps in distributing the load and preventing the screw from pulling through the material. Additionally, the screw is made from high-quality materials that offer resistance to corrosion and wear, ensuring long-term reliability in demanding environments.

Benefits

Using the 3937692 Hexagon Flange Head Cap Screw offers several benefits. The design of the screw enhances fastening security, making it less likely to loosen over time. Its resistance to vibration is particularly advantageous in the dynamic environment of a commercial truck, where components are subject to constant movement and stress. Furthermore, the ease of installation and removal simplifies maintenance procedures, allowing for quick and efficient repairs or adjustments.

Installation and Usage Guidelines

To ensure optimal performance and longevity, proper installation of the 3937692 Hexagon Flange Head Cap Screw is crucial. Begin by selecting the appropriate size and type of screw for the application. Use a torque wrench to apply the recommended torque specifications to avoid over-tightening, which can damage the screw or the material it is securing. Ensure that the flange is flush with the surface to maximize load distribution. Regularly inspect the screw for signs of wear or corrosion and replace it if necessary to maintain the integrity of the fastened components.

Troubleshooting and Maintenance

Common issues with the 3937692 Hexagon Flange Head Cap Screw may include signs of wear, corrosion, or failure to maintain a secure fastening. Regular inspections can help identify these issues early. If corrosion is detected, cleaning the affected area and applying a corrosion-resistant coating can help prolong the screw’s lifespan. In cases where the screw shows significant wear or damage, replacement is recommended to ensure continued reliability and safety. Maintaining a clean and dry environment around the screw can also contribute to its longevity.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer in the commercial truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable automotive components, Cummins has established a strong reputation for delivering products that meet the demanding requirements of heavy-duty applications. Their focus on research and development ensures that components like the 3937692 Hexagon Flange Head Cap Screw are designed to offer superior performance and durability, contributing to the overall efficiency and safety of commercial trucks ³.

Compatibility with Cummins Engines

The Hexagon Flange Head Cap Screw part number 3937692, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is integral for securing various components within the engine assembly, ensuring structural integrity and operational efficiency. Below is a detailed breakdown of the engines with which this screw is compatible:

Cummins B-Series Engines

• B4.5
• B4.5 CM2350 B129B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C

Cummins F-Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B

Cummins ISB Engines

• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

Cummins ISBE Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

Cummins ISC Engine

• ISC CM850

Cummins ISF Engines

• ISF2.8 CM2220 F129
• ISF3.8 CM2220 AN

The Hexagon Flange Head Cap Screw 3937692 is meticulously engineered to meet the specific requirements of these engines, ensuring a secure fit and reliable performance across the board.

Role of Part 3937692 Hexagon Flange Head Cap Screw in Engine Systems

The Hexagon Flange Head Cap Screw (part number 3937692) is a versatile fastener utilized across various engine systems to ensure secure and reliable connections. Its application spans multiple components, contributing to the overall functionality and durability of the engine.

Aftercooler and Turbocharger Arrangement

In the aftercooler and turbocharger arrangement, the Hexagon Flange Head Cap Screw is employed to fasten critical components such as the housing and plumbing connections. This ensures that the cooling and turbocharging processes are efficient and that the components remain securely in place under high-pressure conditions.

Compressor and Refrigerant Cooler

Within the compressor and refrigerant cooler systems, this screw plays a significant role in securing the housing and various plumbing components. Its robust design helps maintain the integrity of the cooling system, ensuring optimal performance and reliability.

Engine Oil and Crankcase Systems

The engine oil and crankcase systems benefit from the use of the Hexagon Flange Head Cap Screw in securing the breather and crankcase breather components. This helps in maintaining proper ventilation and pressure within the crankcase, contributing to the engine’s longevity.

Drive Systems

For components like the fan drive, fuel pump drive, and water pump drive, the screw is used to fasten the drive mechanisms to their respective housings. This ensures that the drives operate smoothly and efficiently, reducing the risk of mechanical failure.

Front and Rear Engine Support

In the front engine support and rear engine support systems, the Hexagon Flange Head Cap Screw is crucial for mounting and securing the engine to the subbase and support structures. This provides stability and reduces vibrations, enhancing the engine’s performance and durability.

Auxiliary Cooling System

The auxiliary cooling system, including the radiator and cooler, utilizes this screw to fasten the package and guard components. This ensures that the cooling system remains intact and functions effectively, even under demanding conditions.

Flywheel and Rear Gear Housing

In the flywheel and rear gear housing, the screw is used to secure the lever and rocker components. This ensures precise and reliable operation of the gear system, contributing to the engine’s overall efficiency.

Alternator and Dampener Guard

The alternator and damper guard systems also benefit from the use of the Hexagon Flange Head Cap Screw. It secures the mounting components, ensuring that these systems operate smoothly and reliably.

Conclusion

In summary, the Hexagon Flange Head Cap Screw (part number 3937692) is an essential component in various engine systems, providing secure and durable connections that contribute to the engine’s overall performance and reliability.