3913034
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3913034 and manufactured by Cummins, is a component used in the maintenance and assembly of commercial trucks. Cummins, a well-established name in the industry, produces this screw to meet the demanding requirements of heavy-duty applications. This screw is integral to ensuring the secure fastening of various components within commercial trucks, contributing to the overall reliability and performance of the vehicle.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener 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 and loosening using a wrench or socket, while the flange provides additional surface area to distribute the load and prevent the screw from pulling through the material. Within mechanical systems, these screws play a role in securely joining components, ensuring structural integrity and proper function ¹.

Purpose and Role in Truck Operation

The 3913034 Hexagon Flange Head Cap Screw serves a specific purpose in commercial trucks by securing critical components that are subject to significant stress and vibration. It is commonly used in applications where a high degree of fastening security is required, such as in the attachment of engine components, chassis parts, and other structural elements. By providing a robust connection, this screw helps maintain the alignment and integrity of these components, which is vital for the truck’s operation ².

Key Features

The 3913034 Hexagon Flange Head Cap Screw features a hexagonal head that allows for easy engagement with tools, facilitating efficient installation and removal. The flange at the base of the head distributes the clamping force over a larger area, reducing the risk of damage to the fastened material. Additionally, the screw is crafted from high-strength materials, ensuring it can withstand the rigors of commercial truck use. Its design also includes threading that provides a strong grip, enhancing the screw’s ability to maintain a secure hold ³.

Benefits

Utilizing the 3913034 Hexagon Flange Head Cap Screw offers several advantages. Its durable construction and high-strength material contribute to longevity, even under demanding conditions. The flange design reduces the likelihood of the screw loosening over time, which is particularly beneficial in applications where vibrations are common. Furthermore, the hexagonal head allows for straightforward installation and removal, saving time during maintenance procedures.

Installation Process

Proper installation of the 3913034 Hexagon Flange Head Cap Screw involves several steps to ensure a secure and lasting connection. Begin by aligning the screw with the designated hole, ensuring that the flange sits flush against the surface. Use a wrench or socket to tighten the screw gradually, applying even pressure to avoid cross-threading. It is important to follow the manufacturer’s torque specifications to achieve the correct clamping force without overtightening, which could damage the screw or the fastened material.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibrations and corrosion, which can compromise the fastening integrity. Regular inspection for signs of wear or damage is recommended to address these issues promptly. If a screw appears loose, it should be retightened to the specified torque. In cases of corrosion, the affected screw may need to be replaced to maintain the security of the fastening. Proper maintenance practices, such as applying an anti-seize compound during installation, can help prevent these issues.

Safety Considerations

When working with Hexagon Flange Head Cap Screws, it is important to observe safety guidelines to protect against injury and ensure the quality of the work. Wear appropriate personal protective equipment, including gloves and safety glasses, to guard against sharp edges and flying debris. Use the correct tools for installation and removal to avoid damaging the screw or the fastened components. Additionally, ensure that the work area is clean and well-lit to facilitate safe and accurate fastening procedures.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the needs of heavy-duty applications. Cummins’ commitment to excellence is reflected in the durability and performance of its components, such as the 3913034 Hexagon Flange Head Cap Screw.

Hexagon Flange Head Cap Screw 3913034 in Cummins Engines

The Cummins Hexagon Flange Head Cap Screw part number 3913034 is a critical component in several Cummins engine models. This screw is designed to secure various parts within the engine assembly, ensuring that components remain tightly fastened and in place during operation. Here’s how it fits into the different Cummins engines:

15N CM2380 M104B, 4B3.9, 6B5.9, 6C8.3, B3.3, B4.5 CM2350 B129B, B6.7 CM2350 B135B, B6.7 CM2670 B153B, B6.7S, C GAS PLUS CM556, C8.3 G

In these engines, the 3913034 screw is often used to secure the cylinder head to the engine block. This ensures that the combustion chamber is properly sealed, which is crucial for maintaining engine efficiency and performance.

D4.0 CM2620 D103B, F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2620 F137B, F3.8 F102

For the D4.0 CM2620 D103B and the F3.8 series engines, the 3913034 screw is utilized in securing various auxiliary components, such as the intake manifold and exhaust manifold. This helps maintain the structural integrity of these components, ensuring they function correctly without any leaks.

F4.5 CM2620 F139B, F4.5 CM2620 F141C

In the F4.5 CM2620 F139B and F4.5 CM2620 F141C engines, the screw is used to fasten the turbocharger housing to the engine block. This is vital for ensuring the turbocharger operates efficiently and securely.

ISB (Chrysler), ISB CM2150, ISB CM550, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN, ISB4.5 CM2350 B104, ISB5.9G CM2180

For the ISB series engines, the 3913034 screw is commonly used in securing the valve cover to the engine block. This ensures that the valve cover remains tightly sealed, preventing any oil leaks and maintaining the engine’s lubrication system integrity.

In summary, the Cummins Hexagon Flange Head Cap Screw 3913034 plays a crucial role in securing various components across different Cummins engine models, ensuring the engine operates efficiently and reliably.

Role of Part 3913034 Hexagon Flange Head Cap Screw in Engine Systems

The part 3913034 Hexagon Flange Head Cap Screw is integral to the secure assembly and operation of various engine components. Its application spans across multiple systems, ensuring robust connections and reliable performance.

Turbocharger Arrangement

In turbocharger setups, the Hexagon Flange Head Cap Screw is used to fasten the turbocharger housing to the engine block. This secure attachment is vital for maintaining the integrity of the turbocharger system, which is responsible for compressing the air entering the engine, thereby enhancing performance and efficiency.

Compressor and Refrigerant Systems

Within compressor and refrigerant systems, this screw plays a role in attaching the compressor housing to its mounting bracket. This ensures that the compressor operates within its designed parameters, contributing to the efficient compression of refrigerant or air, which is essential for cooling and air conditioning functions.

Fuel System Components

The Hexagon Flange Head Cap Screw is employed in the duplex fuel filter and fuel pump coupling assemblies. It secures these components in place, ensuring a leak-free connection that is critical for the consistent delivery of fuel to the engine. Additionally, it is used in the fuel valve control module and fuel control module mounting, providing a stable platform for these modules to operate efficiently.

Heat Exchanger and Cooler Systems

In heat exchanger and cooler systems, this screw is used to attach the heat exchanger housing to the engine or other components. This secure attachment is necessary for the efficient transfer of heat, whether it be for cooling engine oil, refrigerant, or other fluids.

Engine Oil and Duplex Oil Filter

The screw is also utilized in the engine oil system, particularly in securing the duplex oil filter housing. This ensures that the oil filtration process is effective, contributing to the longevity and performance of the engine by maintaining clean oil circulation.

Gauge and Sensor Mounting

For components like the oil level gauge and various sensors, the Hexagon Flange Head Cap Screw provides a secure mounting solution. This is essential for the accurate reading and monitoring of engine parameters, allowing for timely maintenance and adjustments.

Exhaust and Recirculation Systems

In exhaust and recirculation systems, this screw is used to attach components such as the exhaust recirculation valve and charge air bypass plumbing. This secure attachment ensures that these systems operate within their designed specifications, contributing to reduced emissions and improved engine efficiency.

Corrosion Resistance and Longevity

The material properties of the Hexagon Flange Head Cap Screw, often including corrosion-resistant features, make it suitable for use in environments where exposure to elements like heat, moisture, and chemicals is common. This resistance ensures the longevity of the screw and the components it secures, reducing the need for frequent replacements and maintenance.

Conclusion

The 3913034 Hexagon Flange Head Cap Screw is a versatile and essential component in the maintenance and assembly of commercial trucks and various engine systems. Its robust design, high-strength materials, and secure fastening capabilities contribute to the overall reliability and performance of the vehicle. Proper installation, regular maintenance, and adherence to safety guidelines are crucial for maximizing the benefits of this Cummins part.