4935582
Captive Washer Cap Screw
Cummins®

The 4935582 Captive Washer Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the automotive industry, is renowned for its high-quality components that enhance the performance and reliability of commercial vehicles. This Cummins part is integral to the assembly and maintenance of these trucks, ensuring secure fastenings and contributing to the overall structural integrity of the vehicle.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer, which is held in place by a protrusion or groove on the screw’s shank. This design ensures that the washer remains attached to the screw during installation, reducing the risk of loss and simplifying the fastening process ¹. Captive Washer Cap Screws are commonly used in mechanical assemblies where vibration and movement can cause standard washers to become dislodged. They provide consistent pressure distribution and enhanced fastening security.

Purpose of the 4935582 Captive Washer Cap Screw

The 4935582 Captive Washer Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is designed to secure various components within the truck’s assembly, ensuring that parts remain firmly in place under the dynamic conditions experienced during operation. This screw helps maintain structural integrity by providing reliable fastening that can withstand the stresses and vibrations encountered in heavy-duty applications.

Key Features

The 4935582 Captive Washer Cap Screw boasts several key features that enhance its performance and reliability. Its design includes an integrated washer that is securely attached to the screw, ensuring it remains in place during installation. The screw is typically made from high-strength materials, such as alloy steel, which provides excellent durability and resistance to wear ². Additionally, the screw may feature a corrosion-resistant coating to protect against environmental factors, extending its service life in demanding conditions.

Benefits

Using the 4935582 Captive Washer Cap Screw offers several advantages. The integrated washer ensures consistent pressure distribution, which enhances the security of the fastening. This design reduces the likelihood of the washer becoming dislodged, simplifying the installation process and reducing maintenance requirements. The high-strength material and corrosion-resistant coating contribute to the screw’s durability, making it suitable for heavy-duty applications where reliability is paramount.

Installation Process

Proper installation of the 4935582 Captive Washer Cap Screw is crucial for optimal performance. The installation process involves selecting the appropriate drill size for the pilot hole, ensuring a snug fit for the screw. Using a torque wrench, the screw should be tightened to the manufacturer’s specified torque settings to avoid over-tightening, which can cause damage, or under-tightening, which can compromise the fastening ³. It is also important to use the correct tools and techniques to ensure the screw is installed perpendicular to the surface, maintaining the integrity of the fastening.

Troubleshooting and Maintenance

Common issues with the 4935582 Captive Washer Cap Screw may include loosening due to vibration or corrosion from exposure to harsh environments. To address these issues, regular inspections should be conducted to check for signs of wear or corrosion. If loosening is detected, the screw should be re-tightened to the specified torque settings. In cases of significant corrosion, replacement of the screw may be necessary to ensure continued reliable performance. Proper maintenance, including keeping the screw clean and free from debris, can help prolong its lifespan.

Compatibility and Applications

The 4935582 Captive Washer Cap Screw is designed for use in various commercial truck assemblies. It is compatible with specific models and components within the Cummins product range, ensuring a precise fit and reliable performance. This screw is typically used in applications where secure and durable fastening is required, such as in engine components, chassis assemblies, and other critical areas of the truck.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and quality, Cummins has established a strong reputation within the commercial truck industry. The company is committed to producing high-performance components that meet the demanding requirements of heavy-duty applications. Cummins’ dedication to quality and continuous improvement ensures that its products, including the 4935582 Captive Washer Cap Screw, deliver reliable performance and durability in commercial truck operations.

Application in Cummins Engines

QSC8.3 CM850 (CM2850)

In the QSC8.3 CM850 (CM2850) engine, the Captive Washer Cap Screw is utilized in several key areas. It is often employed in securing engine mounts, ensuring that the engine remains stable and properly aligned within the engine bay. This screw also plays a crucial role in fastening various engine components, such as the cylinder head and intake manifold, to the engine block. The captive washer design of the screw provides an added layer of security, preventing the screw from loosening due to vibrations or thermal expansion.

QSC8.3 CM850 (CM2850) Group

When considering the QSC8.3 CM850 (CM2850) group of engines, the Captive Washer Cap Screw is consistently used across different models within this series. This uniformity in application highlights the importance of this part in maintaining the structural and operational integrity of these engines. The screw’s design ensures that it can withstand the high stresses and temperatures encountered in engine operation, providing reliable performance over time.

By using the Captive Washer Cap Screw in these engines, Cummins ensures that the assembly process is both efficient and secure, reducing the likelihood of component failure and enhancing the overall reliability of the engine.

Role of Part 4935582 Captive Washer Cap Screw in Engine Systems

The 4935582 Captive Washer Cap Screw is integral to the secure assembly and reliable operation of various engine components. In the context of the harness and the Electronic Control Module (ECM) wiring, this screw plays a significant role.

Harness Assembly

In the harness assembly, the 4935582 Captive Washer Cap Screw ensures that the wiring is firmly attached to the chassis or other structural elements. This secure attachment is essential for maintaining the integrity of the electrical connections, preventing vibrations from loosening the harness over time. The captive washer within the screw design provides additional stability, ensuring that the screw remains in place even under dynamic engine conditions.

ECM Wiring

For the ECM wiring, the 4935582 Captive Washer Cap Screw is used to fasten the ECM to its mounting bracket. This secure fastening is vital for maintaining the ECM’s position and ensuring that it remains shielded from engine vibrations and external impacts. The captive washer feature of the screw helps in distributing the load evenly, reducing the risk of the screw pulling through the mounting bracket over time. This results in a more durable and reliable connection, which is essential for the consistent performance of the ECM.

In both applications, the 4935582 Captive Washer Cap Screw contributes to the overall reliability and longevity of the engine system by providing a secure and stable attachment point for critical components.

Conclusion

The 4935582 Captive Washer Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its design, featuring an integrated washer and high-strength materials, ensures reliable fastening and durability in heavy-duty applications. Proper installation and maintenance are crucial for optimal performance, and its use in critical engine components underscores its importance in ensuring the structural and operational integrity of the vehicle.