213723
Hexagon Head Cap Screw
Cummins®

The Cummins Hexagon Head Cap Screw (Part #213723) is a specialized fastener designed for heavy-duty truck applications. This screw is integral to the assembly and maintenance of various truck components, ensuring secure and reliable fastening. Its robust design and high-quality materials make it suitable for the demanding conditions encountered in heavy-duty truck operations ¹.

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. The screw features external threads that engage with internal threads in a mating part, creating a secure connection. The design of the hexagon head provides a larger surface area for tool contact, reducing the risk of cam-out and enhancing the efficiency of the fastening process ².

Purpose and Role in Truck Operation

The Cummins Hexagon Head Cap Screw plays a significant role in the operation and maintenance of heavy-duty trucks. It is used in various applications, including securing engine components, transmission parts, and chassis assemblies. The screw ensures that critical components remain firmly in place, contributing to the overall stability and performance of the truck. Its applications extend to both static and dynamic parts, where it must withstand significant stress and vibration ³.

Key Features

The Cummins Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. It is typically made from high-strength steel, which provides excellent tensile strength and resistance to wear. The screw features a coarse thread type, which allows for quick and secure fastening. The hexagonal head design ensures easy and efficient tightening with minimal risk of stripping or rounding. These features collectively contribute to the screw’s reliability in heavy-duty applications.

Benefits

Using the Cummins Hexagon Head Cap Screw in truck applications offers several benefits. Its high-strength material composition ensures enhanced durability, making it suitable for long-term use in demanding environments. The screw’s design provides resistance to corrosion, which is particularly important in applications exposed to moisture and chemicals. Additionally, the ease of installation, thanks to its hexagonal head, allows for quick and efficient fastening, reducing maintenance time and labor costs.

Installation Guidelines

Proper installation of the Cummins Hexagon Head Cap Screw is vital to ensure secure fastening and optimal performance. Begin by cleaning the mating surfaces to remove any debris or contaminants. Use a torque wrench to tighten the screw to the specified torque settings, which can be found in the truck’s maintenance manual. It is important to follow the recommended torque sequence to ensure even distribution of clamping force. Avoid over-tightening, as this can lead to thread damage or component failure.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration, corrosion, and wear. To troubleshoot these issues, regularly inspect the screws for signs of damage or corrosion. If a screw appears loose, re-tighten it to the specified torque settings. In cases of severe corrosion, replace the screw to prevent failure. Regular maintenance, including cleaning and lubrication of mating surfaces, can help prolong the lifespan of the screw and ensure ongoing performance.

Compatibility and Usage

The Cummins Hexagon Head Cap Screw is designed for use in various heavy-duty truck systems. It is compatible with a wide range of truck models and components, making it a versatile choice for fleet maintenance. Its applications include securing engine mounts, transmission components, and chassis parts. When selecting screws for specific applications, ensure they meet the required specifications for strength, size, and thread type.

Manufacturer Information - Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the automotive industry. The company’s expertise in diesel engines and components extends to the production of high-quality fasteners like the Cummins Hexagon Head Cap Screw, ensuring that their products meet the rigorous demands of heavy-duty applications.

Role of Part 213723 Hexagon Head Cap Screw in Engine Systems

The Cummins part 213723, a Hexagon Head Cap Screw, is integral to the assembly and maintenance of the QSK19 CM850 MCRS and QSK50 CM2150 MCRS engines. This screw is designed to secure various components within the engine, ensuring structural integrity and operational efficiency.

Drive System

In the drive system, the Hexagon Head Cap Screw ensures the secure attachment of drive components. It plays a significant role in maintaining the integrity of drive shafts, pulleys, and other rotating parts. The screw’s hexagonal head allows for efficient torque application, reducing the risk of slippage during installation and operation.

Fan Assembly

For the fan assembly, the Hexagon Head Cap Screw is used to fasten the fan blades to the fan hub. This secure connection is essential for the fan’s operation, ensuring that the blades remain firmly in place even under high rotational speeds. The screw’s design helps in withstanding the dynamic forces exerted on the fan during engine operation.

Manifold Connection

In the manifold, whether intake or exhaust, the Hexagon Head Cap Screw is employed to attach the manifold to the engine block or other components. This secure fastening is vital for maintaining the manifold’s alignment and sealing, which is crucial for efficient airflow and performance.

Exhaust System

Within the exhaust system, the Hexagon Head Cap Screw is used to connect various sections of the exhaust pipe and to attach the exhaust manifold to the engine. Its durability and resistance to high temperatures make it suitable for this application, ensuring a tight and lasting connection.

Mounting Brackets

For mounting brackets, the Hexagon Head Cap Screw provides a strong and reliable fastening solution. It is used to secure brackets that hold components such as the radiator, turbocharger, and other auxiliary parts in place. The screw’s ability to distribute load evenly across the fastening area enhances the structural integrity of the mounting system.

Radiator Attachment

In the radiator assembly, the Hexagon Head Cap Screw is utilized to attach the radiator to its mounting brackets and to secure the radiator cap. This ensures that the radiator remains firmly in position, allowing for efficient heat dissipation and maintaining the engine’s optimal operating temperature.

Turbocharger Mounting

For turbocharger applications, the Hexagon Head Cap Screw is essential in securing the turbocharger to the engine and exhaust system. Its high tensile strength and resistance to vibration make it ideal for this high-stress environment, ensuring that the turbocharger remains securely mounted during operation.

Conclusion

The Cummins Hexagon Head Cap Screw (Part #213723) is a critical component in the assembly and maintenance of heavy-duty truck engines and systems. Its robust design, high-strength materials, and efficient fastening capabilities make it an indispensable part in ensuring the reliability and performance of heavy-duty trucks. Proper installation, regular maintenance, and understanding its role in various engine systems are essential for maximizing the lifespan and effectiveness of this Cummins part.