3081346
Hexagon Head Cap Screw
Cummins®

A Hexagon Head Cap Screw is a type of fastener commonly used in various mechanical assemblies, including commercial trucks. Its design allows for efficient torque application and secure fastening, making it a staple in the automotive and heavy-duty truck industries. This part is integral to maintaining the structural integrity and operational efficiency of truck components.

Basic Concepts of Hexagon Head Cap Screw

A Hexagon Head Cap Screw is characterized by its hexagonal head, which provides a surface for applying torque using a wrench or socket. This design allows for precise and controlled tightening, reducing the risk of over-tightening or stripping. The screw’s threaded shaft engages with the internal threads of a nut or directly into a tapped hole, creating a secure connection. The hexagonal shape of the head is advantageous as it resists rounding, ensuring consistent and reliable fastening.

Role of Part #3081346 in Truck Operation

The 3081346 Hexagon Head Cap Screw by Cummins plays a specific role in the operation and maintenance of commercial trucks. It is used in various truck assemblies where secure fastening is required. This includes applications in the engine compartment, chassis, and other critical areas where components need to be firmly attached to ensure safe and efficient truck operation. Its reliable performance under varying conditions makes it a preferred choice for truck manufacturers and maintenance professionals.

Key Features

The 3081346 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. It is made from high-quality materials, typically a grade of steel that offers excellent strength and corrosion resistance. The screw features a coarse or fine thread, depending on the application, which provides optimal engagement and holding power. Additionally, it may have special coatings or treatments, such as zinc plating or black oxide finish, to further improve its resistance to corrosion and wear.

Benefits

Using the 3081346 Hexagon Head Cap Screw in truck maintenance and repair offers several benefits. Its design ensures improved fastening security, reducing the likelihood of loosening due to vibration, which is common in heavy-duty truck operations. The ease of installation and removal, thanks to its hexagonal head, allows for quick and efficient maintenance procedures. Moreover, its durable construction and resistance to environmental factors contribute to its longevity and reliable performance.

Troubleshooting and Maintenance

Common issues associated with Hexagon Head Cap Screws include corrosion and stripping. Regular maintenance practices, such as inspecting for signs of wear or damage and replacing screws as needed, can help ensure longevity and reliable performance. Proper torque settings are crucial to avoid over-tightening, which can lead to stripping, or under-tightening, which can result in loosening. Routine inspections and adherence to manufacturer guidelines for torque settings are recommended to maintain the integrity of the fastening system.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a history of innovation and commitment to quality, Cummins serves the automotive, heavy-duty, and power generation industries. The company is known for its robust product range and dedication to advancing technology in the engine component industry.

Hexagon Head Cap Screw 3081346 in Cummins Engines

The Hexagon Head Cap Screw 3081346 is a critical component in various Cummins engines, providing essential fastening capabilities across different engine models. This screw is utilized in both the ISM and L10 series engines, as well as the M11 series engines, ensuring structural integrity and proper assembly.

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

The ISM series engines, including the ISM CM570, ISM CM570/870, ISM CM876, and ISM11 CM876 SN, incorporate the Hexagon Head Cap Screw 3081346 in several key areas. This screw is often used in the assembly of engine components, ensuring that parts are securely fastened together. Its application is critical in maintaining the structural integrity of the engine, particularly in areas where vibration and stress are common.

L10 Series Engines

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

In the L10 series engines, which include the L10 CELECT, L10 GAS, and L10 MECHANICAL models, the Hexagon Head Cap Screw 3081346 is employed in various fastening applications. This screw is integral to the assembly of engine components, ensuring that parts are securely attached and remain stable under operational conditions. Its use in these engines highlights its importance in maintaining the overall reliability and performance of the engine.

M11 Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL
• QSM11 CM570
• QSM11 CM876

The M11 series engines, which encompass the M11 CELECT, M11 CELECT PLUS, M11 MECHANICAL, QSM11 CM570, and QSM11 CM876 models, also rely on the Hexagon Head Cap Screw 3081346 for critical fastening tasks. This screw is used in the assembly of various engine components, ensuring that parts are securely fastened and remain in place under operational stresses. Its application in these engines underscores its importance in maintaining the structural integrity and performance of the engine.

Role of Part 3081346 Hexagon Head Cap Screw in Engine Systems

The part 3081346 Hexagon Head Cap Screw is integral in securing various components within engine systems, ensuring stability, efficiency, and safety. Here’s how it fits into the provided components:

Alternator and Mounting Components

• Alternator Location and Mounting: The Hexagon Head Cap Screw is used to fasten the alternator to its designated location on the engine. This secure attachment ensures the alternator remains stable during operation, minimizing vibrations that could affect its performance.
• Alternator Mounting Arrangement: In the alternator mounting arrangement, these screws play a role in maintaining the precise alignment of the alternator with respect to the engine’s crankshaft, which is essential for efficient power generation.

Turbocharger and Bracket Components

• Turbocharger Bracket and Lifting Arrangement: When installing or maintaining a turbocharger, the Hexagon Head Cap Screw is employed to secure the turbocharger bracket. This ensures the turbocharger is held firmly in place, even under the high stresses and temperatures it encounters.
• Turbocharger Connection: These screws are also used in the connection between the turbocharger and the engine, ensuring a leak-free and robust connection that can withstand the pressures involved in turbocharging.

Air Intake and Fuel System Components

• Air Intake Connection: In the air intake system, the Hexagon Head Cap Screw secures components such as the air intake manifold to the engine, ensuring a tight seal that prevents air leaks, which could otherwise reduce engine efficiency.
• Fuel Filter and Lubricating Oil Filter Mounting: These screws are vital in mounting fuel filters and lubricating oil filters to their respective housings. Secure mounting ensures these filters operate efficiently, providing clean fuel and oil to the engine.

Cooling System Components

• Thermostat Housing and Oil Filter Cooler: In the cooling system, the Hexagon Head Cap Screw is used to attach the thermostat housing and oil filter cooler to the engine. This secure attachment is necessary to maintain the integrity of the cooling system, ensuring optimal engine temperature regulation.
• Radiator Plumbing and Compressor Coolant Plumbing: These screws are also found in the plumbing connections for the radiator and compressor coolant systems. They ensure that all connections are tight, preventing coolant leaks and maintaining the efficiency of the cooling system.

Additional Components

• Front Gear Cover and Vibration Damper: The Hexagon Head Cap Screw is used to secure the front gear cover and vibration damper to the engine. This helps in reducing vibrations and ensuring the smooth operation of the engine.
• Refrigerant Compressor Mounting: In systems where a refrigerant compressor is used, these screws secure the compressor to the engine, ensuring it operates efficiently and reliably.
• Corrosion Resistor and Debris Shield: These screws are also employed in mounting corrosion resistors and debris shields, protecting various engine components from environmental damage and debris.

Conclusion

In summary, the part 3081346 Hexagon Head Cap Screw is a versatile fastener that plays a significant role in the secure and efficient operation of various engine components. Its application across different systems underscores its importance in maintaining the overall performance and reliability of the engine.

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