103274
Hexagon Head Cap Screw
Cummins®

The Cummins 103274 Hexagon Head Cap Screw is a specialized fastener designed for use in heavy-duty truck maintenance and operation. This screw is integral to ensuring the secure assembly of various truck components, contributing to the overall reliability and performance of the vehicle. Its robust design and high-quality materials make it a preferred choice for professionals in the automotive industry.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. In the automotive industry, these screws are commonly used to join metal parts together, providing a strong and durable connection. Mechanically, the hexagonal shape of the head ensures that the screw can be turned smoothly without slipping, which is crucial for achieving the correct torque during installation ¹.

Purpose and Role in Truck Operation

The Cummins 103274 Hexagon Head Cap Screw plays a significant role in the operation and maintenance of heavy-duty trucks. It is utilized in various truck components, including engine mounts, chassis assemblies, and other critical areas where secure fastening is required. The screw helps maintain the structural integrity of these components, ensuring that they function correctly under the demanding conditions typical of heavy-duty truck operation ².

Key Features

The Cummins 103274 Hexagon Head Cap Screw boasts several key features that enhance its functionality and durability. It is composed of high-strength materials, typically alloy steel, which provides excellent resistance to wear and corrosion. The screw features a coarse thread type, which allows for quick and secure fastening. Additionally, its design includes a flat underside that ensures a flush fit with the surface it is installed on, contributing to a smooth and professional appearance.

Benefits

Using the Cummins 103274 Hexagon Head Cap Screw offers several benefits. Its high-strength material composition ensures improved reliability, making it less prone to failure under stress. The screw’s design allows for ease of installation, reducing the time required for maintenance tasks. Furthermore, its resistance to wear and corrosion extends the lifespan of the fastener, providing long-term value in heavy-duty truck applications ³.

Installation and Usage Guidelines

Proper installation of the Cummins 103274 Hexagon Head Cap Screw is vital to ensure optimal performance. The recommended torque specifications should be followed to achieve the correct tension without over-tightening, which could damage the screw or the components being joined. Using the appropriate tools, such as a torque wrench, is essential for accurate installation. It is also important to ensure that the surfaces being joined are clean and free of debris to prevent any issues during installation.

Troubleshooting and Maintenance

Common issues associated with Hexagon Head Cap Screws include loosening over time due to vibration or thermal expansion. Regular inspection and tightening can help prevent these issues. If corrosion is detected, the affected screws should be replaced to maintain the integrity of the assembly. Proper maintenance practices, such as applying a thread locker during installation, can also enhance the longevity and performance of the screw.

Safety Considerations

When handling and installing the Cummins 103274 Hexagon Head Cap Screw, it is important to observe several safety practices. Wearing personal protective equipment (PPE), such as gloves and safety glasses, can protect against injuries. Additionally, ensuring a stable work environment and using the correct tools will help prevent accidents during installation. Following manufacturer guidelines and torque specifications is also crucial for safe and effective use of the screw.

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 is renowned for its commitment to quality and innovation. The company’s extensive range of components, including the 103274 Hexagon Head Cap Screw, reflects its dedication to providing reliable and high-performance solutions for the automotive and heavy-duty truck industry.

Cummins Hexagon Head Cap Screw 103274 in Engine Applications

The Cummins Hexagon Head Cap Screw, part number 103274, is a critical component in various engine configurations. This screw is integral to the assembly and maintenance of several Cummins engines, ensuring secure fastening and structural integrity.

K19, K38, and K50 Engines

In the K19, K38, and K50 engines, the 103274 screw is used in multiple locations to secure various engine parts. Its application in these engines includes fastening components that are subject to high stress and vibration, ensuring that the engine operates smoothly and efficiently.

QSK19 CM850 MCRS, QSK50 CM2150 K107, and QSK50 CM2150 MCRS Engines

For the QSK19 CM850 MCRS, QSK50 CM2150 K107, and QSK50 CM2150 MCRS engines, the 103274 screw plays a vital role in maintaining the structural integrity of the engine. These engines, known for their robust performance, rely on the screw to secure critical components, ensuring longevity and reliability under demanding conditions.

QSK60 CM850 MCRS Engine

The QSK60 CM850 MCRS engine also utilizes the 103274 screw extensively. Given the high power output and demanding operational environments of this engine, the screw’s role in securing various parts is crucial. Its use in this engine ensures that all components remain tightly fastened, contributing to the engine’s overall performance and durability.

The consistent use of the 103274 screw across these engine models highlights its importance in maintaining the structural and operational integrity of Cummins engines.

Role of Part 103274 Hexagon Head Cap Screw in Engine Systems

Part 103274, the Hexagon Head Cap Screw, is integral to the assembly and securement of various components within engine systems. Its application spans across multiple subsystems, ensuring the integrity and functionality of the engine.

Gear Box Kit Items

In the assembly of gear box kit items, the Hexagon Head Cap Screw is used to fasten gears, bearings, and housing components. This securement is vital for maintaining the precise alignment and operational efficiency of the gear box, which is essential for transmitting power from the engine to the propeller.

Keel Cooler Plumbing

For keel cooler plumbing, the screw is employed to attach plumbing components such as fittings, brackets, and support structures. This ensures a leak-free and stable plumbing system, which is necessary for the efficient cooling of engine components and the prevention of overheating.

Marine Gear Mounting

When mounting marine gear, the Hexagon Head Cap Screw plays a role in securing the gear to the engine block or transmission housing. This securement is important for the stable operation of the marine gear, which is responsible for adjusting the engine’s power output to the propeller.

Mounting Propeller Shaft Flare

In the mounting of the propeller shaft flare, the screw is used to attach the flare to the propeller shaft. This attachment is necessary for the proper alignment and balance of the propeller, which directly affects the engine’s performance and the vessel’s propulsion.

Raw Water Inlet and Outlet Connections

For raw water inlet and outlet connections, the Hexagon Head Cap Screw is utilized to secure the connections to the engine block or pump housing. This ensures a secure and leak-free connection, which is essential for the efficient circulation of cooling water through the engine.

Raw Water Pump and Seawater Pump

In the assembly of raw water and seawater pumps, the screw is used to fasten pump components such as impellers, housings, and brackets. This securement is important for the reliable operation of the pumps, which are responsible for circulating cooling water through the engine and other components.

Water Inlet and Outlet Connections

Finally, for water inlet and outlet connections, the Hexagon Head Cap Screw is employed to secure these connections to various engine components. This ensures a stable and leak-free system, which is necessary for the efficient operation of the engine’s cooling system.

Conclusion

The Cummins 103274 Hexagon Head Cap Screw is a critical component in the maintenance and operation of heavy-duty trucks and engines. Its robust design, high-strength materials, and precise engineering make it an essential fastener for ensuring the secure assembly and structural integrity of various truck and engine components. Proper installation, regular maintenance, and adherence to safety guidelines are crucial for maximizing the performance and longevity of this part.