205679
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, identified by part number 205679, is a specialized fastener produced by Cummins, a renowned manufacturer in the commercial truck industry. This component is integral to the assembly and maintenance of various truck components, ensuring secure and reliable connections. Cummins is recognized for its commitment to quality and innovation in the production of automotive parts, making the Twelve Point Cap Screw a valuable component in the industry ².

Basic Concepts of Twelve Point Cap Screws

A Twelve Point Cap Screw is a type of fastener characterized by its hexagonal socket with six additional points, providing a total of twelve contact points. This design differentiates it from traditional hex cap screws and offers distinct advantages in terms of grip and resistance to cam-out. In the automotive industry, Twelve Point Cap Screws are commonly used in applications requiring high torque and secure fastening, such as in engine components, transmission systems, and chassis assemblies ³.

Purpose and Role in Truck Operation

The 205679 Twelve Point Cap Screw plays a significant role in the operation of commercial trucks by securing critical components and assemblies. It is utilized in various truck systems, including the engine, transmission, and chassis. By providing a strong and reliable fastening solution, this cap screw ensures that components remain securely in place under the demanding conditions of truck operation, contributing to the overall performance and safety of the vehicle ⁴.

Key Features

The 205679 Twelve Point Cap Screw boasts several key features that enhance its performance and reliability. Its twelve-point design offers improved grip and reduced risk of cam-out compared to standard hex cap screws. The screw is typically made from high-strength materials, such as alloy steel, to withstand the rigors of truck operation. Additionally, it features precise threading that ensures a secure and lasting connection, and it may include unique attributes such as corrosion-resistant coatings to enhance durability in harsh environments ¹.

Benefits

The 205679 Twelve Point Cap Screw offers several benefits that make it a preferred choice for truck manufacturers and maintenance professionals. Its design allows for improved torque application, reducing the likelihood of stripping or damaging the fastener during installation. The reduced risk of cam-out ensures a more secure connection, while the enhanced grip provided by the twelve-point socket minimizes the chance of loosening over time. Furthermore, the increased durability of the screw contributes to longer component lifespans and reduced maintenance requirements ².

Installation and Usage Guidelines

Proper installation of the 205679 Twelve Point Cap Screw is crucial for ensuring a secure and lasting connection. To install, use the appropriate torque wrench to achieve the specified torque value, which varies depending on the application and material being fastened. It is recommended to use a socket wrench with a twelve-point socket to engage the screw, ensuring a snug fit and minimizing the risk of damage. Follow best practices for thread lubrication and pre-tightening to facilitate smooth installation and optimal performance ³.

Troubleshooting and Maintenance

Common issues with Twelve Point Cap Screws may include loosening, corrosion, or damage to the socket. To troubleshoot, inspect the fastener for signs of wear or corrosion and replace if necessary. Ensure that the correct torque specifications are being used during installation to prevent over-tightening or under-tightening. Regular maintenance practices, such as cleaning and applying corrosion-resistant coatings, can help prolong the lifespan of the fastener and ensure reliable performance ⁴.

Cummins: Manufacturer Overview

Cummins is a leading manufacturer in the automotive industry, with a strong reputation for producing high-quality components for commercial trucks. Founded in 1919, Cummins has a long history of innovation and excellence in engine and powertrain technology. The company is committed to delivering reliable and durable parts that meet the demanding requirements of the trucking industry, making it a trusted partner for truck manufacturers and maintenance professionals alike ¹.

Twelve Point Cap Screw 205679 in Cummins Engines

The Twelve Point Cap Screw 205679, manufactured by Cummins, plays a crucial role in the assembly and functionality of various Cummins engines. This part is integral to ensuring the secure fastening of components within the engine, contributing to the overall stability and performance of the engine system.

In the K19 engine series, the Twelve Point Cap Screw 205679 is utilized in several key areas. Its design, featuring twelve points for better grip and torque, ensures that it can withstand the stresses and vibrations inherent in engine operations. This screw is often employed in the mounting of engine blocks, securing various sub-assemblies, and fastening critical components that require precise alignment and stability.

The cap screw’s robust construction and precise engineering make it suitable for high-stress environments, where reliability and durability are paramount. Its application in the K19 engines highlights Cummins’ commitment to using high-quality components that enhance engine performance and longevity.

For the K19 engines, the Twelve Point Cap Screw 205679 is essential in maintaining the integrity of the engine’s structure, ensuring that all parts are securely fastened and aligned. This contributes to the engine’s overall efficiency and operational safety ².

Part 205679 Twelve Point Cap Screw Component Usage

The part 205679 Twelve Point Cap Screw is integral to the secure assembly and operation of various engine components, particularly those involved in managing vibrations and ensuring stable mounting.

In the context of a damper, this cap screw plays a significant role in fastening the damper to the engine block or crankshaft. Its twelve-point design allows for enhanced torque application, reducing the risk of cam-out and ensuring a tight, secure fit.

For the vibration damper, the Twelve Point Cap Screw is used to attach the damper to the crankshaft. This connection is vital for absorbing torsional vibrations, which can otherwise lead to engine wear and reduced performance.

In a damper arrangement, multiple Twelve Point Cap Screws may be employed to secure various components together, ensuring that the damper system functions as a cohesive unit. This is particularly important in high-performance engines where precision and reliability are paramount.

When considering damper mounting, the Twelve Point Cap Screw ensures that the damper is mounted securely to the engine, minimizing any potential for movement or misalignment that could affect engine balance and performance.

In applications involving a vibration damper magtronic, the Twelve Point Cap Screw is used to attach the magtronic unit to the engine. This setup is essential for integrating electronic control with mechanical damping, enhancing the engine’s ability to handle varying loads and operating conditions.

Overall, the part 205679 Twelve Point Cap Screw is a key component in the assembly and secure operation of dampers and vibration control systems within engine applications ³.

Conclusion

The 205679 Twelve Point Cap Screw is a critical component in the automotive industry, particularly for commercial trucks and Cummins engines. Its unique design, robust construction, and precise engineering make it an essential part for securing various engine components, ensuring reliable performance and longevity. Proper installation and maintenance practices are vital to maximize the benefits of this cap screw, contributing to the overall efficiency and safety of the vehicle ⁴.