212113
Twelve Point Cap Screw
Cummins®

The 212113 Twelve Point Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the automotive and heavy-duty truck industry, produces this component to meet the demanding requirements of truck mechanics and operations. This screw plays a role in ensuring the structural integrity and efficient operation of various truck components.

Basic Concepts of Twelve Point Cap Screws

A Twelve Point Cap Screw is a type of fastener characterized by its twelve-sided head, which provides a larger contact area compared to traditional hex-head screws. This design reduces the likelihood of cam-out, where the fastener rounds off during tightening or loosening ¹. Twelve Point Cap Screws are commonly used in mechanical applications where high torque and resistance to loosening are required.

Purpose and Role in Truck Operation

In the context of commercial truck operations, the 212113 Twelve Point Cap Screw serves a role within the truck’s mechanical systems. It is used to secure components that experience significant stress and vibration, such as engine mounts, transmission housings, and chassis parts. The screw’s design ensures that it remains tightly fastened, even under harsh operating conditions, thereby contributing to the overall reliability and safety of the truck.

Key Features

The 212113 Twelve Point Cap Screw boasts several key features that enhance its performance and durability. Its twelve-sided head design provides a more secure grip during installation and removal, reducing the risk of damage to the screw or the tool used. The screw is typically made from high-strength materials, such as alloy steel, which offers superior resistance to wear and corrosion. Additionally, the screw may feature a special coating or treatment to further improve its durability in challenging environments.

Benefits

Using the 212113 Twelve Point Cap Screw offers several benefits. Its design allows for improved torque application, ensuring that components are securely fastened without the risk of over-tightening or stripping. The screw’s resistance to loosening makes it ideal for applications where vibrations are common. Furthermore, its durability in harsh operating conditions contributes to the longevity of the truck’s mechanical systems, reducing the need for frequent replacements.

Installation Considerations

Proper installation of the 212113 Twelve Point Cap Screw is crucial for optimal performance and safety. It is important to follow torque specifications provided by the manufacturer to ensure that the screw is tightened to the correct level. Using the appropriate tools and techniques, such as a torque wrench, helps prevent damage to the screw or the components being fastened. Additionally, ensuring that mating surfaces are clean and free of debris contributes to a secure and lasting connection.

Troubleshooting and Maintenance

Common issues with the 212113 Twelve Point Cap Screw may include corrosion or stripping. Regular inspection and maintenance can help identify and address these problems early. If corrosion is detected, cleaning the affected area and applying a protective coating can prevent further damage. In cases of stripping, replacing the screw with a new one of the same specifications is recommended to maintain the integrity of the fastening.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer in the automotive and heavy-duty truck industry, with a history of producing high-quality components for commercial vehicles. The company’s reputation for reliability and innovation is reflected in its wide range of products, which are designed to meet the rigorous demands of truck operations. Cummins’ commitment to quality and performance makes its components, including the 212113 Twelve Point Cap Screw, a preferred choice for truck mechanics and fleet managers ².

Twelve Point Cap Screw Part 212113 in Cummins Engines

The Twelve Point Cap Screw part number 212113, manufactured by Cummins, is a component in various Cummins engine models. This screw is integral to the assembly and maintenance of several engine types, ensuring secure fastening and structural integrity.

N14 CELECT and N14 CELECT PLUS Engines

The Twelve Point Cap Screw is utilized in both the N14 CELECT and N14 CELECT PLUS engines. These engines are known for their robust design and efficiency, often used in heavy-duty applications. The screw is essential in securing various engine components, ensuring that the engine operates smoothly and reliably under demanding conditions.

N14 MECHANICAL Engine

In the N14 MECHANICAL engine, the Twelve Point Cap Screw plays a similar role. This engine variant is designed for applications requiring mechanical reliability and durability. The screw’s twelve-point design provides a better grip and more surface area for the wrench, facilitating easier and more secure fastening.

NH/NT 855 Engine

The NH/NT 855 engine also incorporates the Twelve Point Cap Screw. This engine is known for its versatility and is used in a range of applications, from construction to agricultural machinery. The screw’s design ensures that critical components are held firmly in place, contributing to the engine’s overall performance and longevity.

QSK19 CM850 MCRS and QSNT14 CM876 N102 Engines

The QSK19 CM850 MCRS and QSNT14 CM876 N102 engines are part of Cummins’ advanced engine lineup, designed for high-performance applications. The Twelve Point Cap Screw is used in these engines to secure various components, ensuring that the engines can withstand the rigors of heavy-duty use. The screw’s design allows for precise and reliable fastening, which is crucial for maintaining the engines’ integrity and performance.

Role of Part 212113 Twelve Point Cap Screw in Engine Systems

In the intricate assembly of engine systems, the Part 212113 Twelve Point Cap Screw plays a role in ensuring the secure and efficient operation of various components. This screw is integral in the fastening and stabilization of multiple engine parts, contributing to the overall performance and durability of the engine.

Damper and Vibration Control

The Twelve Point Cap Screw is utilized in the attachment of the damper, which is essential for controlling vibrations within the engine. By securely fastening the damper to the crankshaft, this screw helps in mitigating the vibrations that occur during engine operation, thereby enhancing the smoothness and reliability of the engine’s performance.

Damper Mounting

In the context of damper mounting, the Twelve Point Cap Screw ensures that the damper is firmly attached to its designated position. This secure attachment is vital for the damper to effectively absorb and dissipate the vibrational energy generated by the engine, protecting other components from excessive wear and tear.

EBM: Pulley Attachment

For the Engine Balancer Module (EBM) pulley, the Twelve Point Cap Screw is employed to fasten the pulley to the crankshaft. This secure connection is necessary for the proper functioning of the EBM, which plays a role in balancing the engine’s rotating assemblies, thereby reducing vibrations and improving engine efficiency.

Crankshaft Stabilization

The crankshaft, a central component in the engine, relies on the Twelve Point Cap Screw for stabilization. By securely attaching various components to the crankshaft, this screw ensures that the crankshaft operates smoothly and efficiently, contributing to the engine’s overall performance.

Engine Mounting

In engine mounting applications, the Twelve Point Cap Screw is used to fasten the engine to its mounting brackets. This secure attachment is essential for maintaining the engine’s position within the vehicle, ensuring that it operates within the designed parameters and reducing the risk of misalignment or damage.

Flywheel Attachment

The flywheel, which stores rotational energy and smooths out the power delivery from the engine, is another component where the Twelve Point Cap Screw plays a role. By securely attaching the flywheel to the crankshaft, this screw ensures that the flywheel can effectively perform its function, contributing to the engine’s smooth operation.

Mounting Damper and Pulley

Finally, the Twelve Point Cap Screw is utilized in the mounting of both the damper and the pulley. By providing a secure and stable connection for these components, this screw ensures that they can effectively perform their roles in controlling vibrations and balancing the engine, respectively.

Conclusion

The 212113 Twelve Point Cap Screw is a vital component in the assembly and operation of engine systems, contributing to the secure attachment and efficient functioning of various engine parts. Its design and features make it well-suited for the demanding conditions of commercial truck operations, ensuring the reliability and safety of the vehicle.