2887839
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, identified by part number 2887839, is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This screw plays a significant role in the assembly and maintenance of heavy-duty trucks, ensuring the integrity and efficiency of various mechanical systems.

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 screws. This design allows for greater torque application with reduced risk of cam-out, making it suitable for high-stress applications. In mechanical assemblies, these screws are used to secure components that require strong, reliable fastening. Their application ranges from engine components to chassis parts, where durability and resistance to loosening are paramount ¹.

Role of the 2887839 Twelve Point Cap Screw in Truck Operation

The 2887839 Twelve Point Cap Screw is integral to the operation and maintenance of heavy-duty trucks. It is employed in areas where secure fastening is required to withstand significant vibrational and operational stresses. This screw helps in maintaining the structural integrity of engine components, ensuring that parts remain securely fastened during operation, which is vital for the truck’s performance and safety ².

Key Features of the 2887839 Twelve Point Cap Screw

The 2887839 Twelve Point Cap Screw is designed with several key features that enhance its functionality. Its twelve-point head design allows for more torque to be applied with less likelihood of rounding off the corners, compared to traditional hex screws. The screw is typically made from high-strength materials, ensuring it can withstand the demanding conditions found in heavy-duty truck applications. Additionally, it may feature a corrosion-resistant coating to prolong its lifespan in various environmental conditions ³.

Benefits of Using the 2887839 Twelve Point Cap Screw

Incorporating the 2887839 Twelve Point Cap Screw into truck assemblies offers several advantages. Its design contributes to enhanced durability and reliability, reducing the likelihood of fastener failure under stress. The increased torque capacity and resistance to cam-out also mean that components can be more securely fastened, leading to improved performance and safety of the truck. Furthermore, the potential for corrosion resistance extends the screw’s lifespan, offering cost-effective maintenance solutions ⁴.

Installation and Usage Guidelines

To ensure optimal performance and longevity of the 2887839 Twelve Point Cap Screw, proper installation is crucial. Begin by cleaning the mating surfaces to remove any debris or corrosion. Use a torque wrench to apply the recommended torque specification, ensuring the screw is tightened to the manufacturer’s guidelines. Avoid over-tightening, as this can lead to damage or stripping of the screw. Regular inspection of the screw and its fastening area is recommended to identify any signs of wear or loosening.

Troubleshooting Common Issues

Frequent problems associated with Twelve Point Cap Screws include loosening due to vibration, corrosion, and damage from over-tightening. To address these issues, regularly inspect screws for signs of wear or corrosion. If a screw appears loose, re-tighten it to the specified torque. In cases of corrosion, consider replacing the screw to prevent further degradation. Always use the correct tools and torque specifications during installation to avoid damage.

Maintenance Tips

To prolong the lifespan of the 2887839 Twelve Point Cap Screw and ensure continued reliable operation, regular maintenance is recommended. This includes periodic inspection for signs of wear, corrosion, or loosening. Applying a corrosion-resistant coating or lubricant can help protect the screw from environmental factors. Additionally, ensuring that all mating surfaces are clean and free from debris before installation can prevent premature wear and ensure a secure fit.

Cummins: A Brief 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 has established a reputation for quality, reliability, and innovation in the automotive and heavy-duty truck industry. The company’s extensive product range includes engines, powertrains, and related components, all designed to meet the demanding requirements of various applications. Cummins’ commitment to excellence and customer satisfaction has made it a preferred choice for professionals in the industry.

Twelve Point Cap Screw Part 2887839 in Cummins Engines

The Twelve Point Cap Screw part number 2887839, manufactured by Cummins, is a critical component in the assembly and maintenance of several Cummins engine models. This part is integral to the structural integrity and operational efficiency of the engines, ensuring that various parts are securely fastened and aligned.

Application in QSK95 CM2350 Engines

The Twelve Point Cap Screw part number 2887839 is utilized in the QSK95 CM2350 engines, specifically in the variants K111 and K113. In these engines, the screw is employed in various applications where high strength and precision are required. Its twelve-point design allows for better torque application and reduced stripping, which is crucial for maintaining the alignment and securing of engine components under high stress conditions.

Importance of the Screw in Engine Assembly

In the QSK95 CM2350 K111 and K113 engines, the Twelve Point Cap Screw part number 2887839 is used in several key areas. These include, but are not limited to, fastening engine mounts, securing various brackets and covers, and ensuring the proper alignment of moving parts. The screw’s design and material properties make it suitable for these demanding applications, providing the necessary durability and resistance to wear and tear.

Ensuring Engine Reliability

The use of the Twelve Point Cap Screw part number 2887839 in Cummins engines is a testament to the importance of high-quality fasteners in engine reliability and performance. By using this specific screw, Cummins ensures that the engines can withstand the rigors of continuous operation, maintaining their structural integrity and operational efficiency over time.

Part 2887839 Twelve Point Cap Screw Component Usage

In the intricate assembly of engine systems, the part 2887839 Twelve Point Cap Screw plays a significant role in ensuring the secure attachment and reliable operation of various components. This screw is instrumental in fastening the lever and rocker assemblies, which are pivotal in the efficient functioning of the engine.

Lever Assembly

Within the lever assembly, the Twelve Point Cap Screw is used to attach the lever to its mounting bracket. This secure attachment is essential for the lever to transmit motion effectively, whether it is part of a control system or a mechanical linkage. The screw’s design allows for precise torque application, ensuring that the lever remains firmly in place under varying operational conditions.

Rocker Assembly

In the rocker assembly, the Twelve Point Cap Screw is employed to fasten the rocker to its support structure. The rocker, often used in valvetrain systems, relies on this secure attachment to maintain consistent valve operation. The screw’s twelve-point design provides enhanced grip and reduces the risk of cam-out, which is particularly beneficial in high-stress environments where the rocker experiences significant force and motion.

Rocker Lever Integration

When integrating the rocker lever into the engine system, the Twelve Point Cap Screw ensures that the lever is correctly aligned and tightly secured. This is vital for the synchronized movement of the rocker lever, which directly influences the opening and closing of valves. The screw’s robust construction and precise fit contribute to the durability and reliability of the rocker lever mechanism.

Conclusion

Overall, the part 2887839 Twelve Point Cap Screw is a key component in maintaining the structural integrity and operational efficiency of lever and rocker assemblies within engine systems. Its reliable performance under stress and its ability to provide a secure attachment make it an indispensable part in the complex interplay of engine components.