4945799
Round Head Cap Screw
Cummins®

The 4945799 Round Head Cap Screw is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is designed for use in various applications within commercial trucks, contributing to the secure assembly of different truck systems.

Basic Concepts of Round Head Cap Screws

Round head cap screws are fasteners characterized by a rounded head and threaded body. They are commonly used in mechanical assemblies to secure components together. The rounded head provides a larger surface area for distribution of clamping force, reducing the risk of damage to the fastened material. These screws are typically driven using a hex socket, allowing for efficient and secure fastening ¹.

Purpose of the 4945799 Round Head Cap Screw in Truck Operation

This Cummins part plays a role in the operation and maintenance of commercial trucks by securing various components within the truck’s systems. Its applications range from fastening engine components to securing parts of the truck’s chassis and body. The screw ensures that these components remain firmly in place, contributing to the overall reliability and performance of the truck ².

Key Features

The 4945799 Round Head Cap Screw is crafted from high-quality materials, ensuring durability and resistance to wear. It features a specific thread type that provides a strong grip, enhancing the security of the fastened components. The rounded head design allows for even distribution of clamping force, minimizing the risk of damage to the materials being joined. Additionally, the screw may have special coatings or treatments to improve its resistance to corrosion and other environmental factors ³.

Benefits

This part offers several benefits, including durability, resistance to corrosion, and ease of installation. Its design ensures reliable performance in high-stress environments, making it suitable for the demanding conditions encountered in commercial truck operations. The screw’s ease of installation contributes to efficient maintenance and repair processes.

Installation Guidelines

Proper installation of the 4945799 Round Head Cap Screw involves several steps. First, ensure that the mating surfaces are clean and free of debris. Use the appropriate tool to drive the screw into place, applying the recommended torque specifications to achieve the desired clamping force without over-tightening. It is important to follow the manufacturer’s guidelines to ensure secure and reliable fastening.

Maintenance Tips

To ensure the longevity and performance of the 4945799 Round Head Cap Screw, regular inspections are recommended. Check for signs of loosening, corrosion, or damage, and address any issues promptly. Replacement intervals may vary depending on the specific application and environmental conditions, so it is important to follow the manufacturer’s recommendations for maintenance and replacement.

Troubleshooting Common Issues

Common problems associated with round head cap screws include loosening, corrosion, and damage. If a screw becomes loose, it should be re-tightened to the recommended torque specifications. Corrosion can be addressed by cleaning the affected area and applying a suitable corrosion-resistant coating. Damaged screws should be replaced to maintain the integrity of the fastened components.

Cummins: Manufacturer 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 strong reputation in the commercial truck industry for producing reliable and high-quality components. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of commercial truck operations.

Round Head Cap Screw 4945799 in Cummins Engines

The Round Head Cap Screw 4945799, manufactured by Cummins, is a component in the assembly of several Cummins engines. This screw is designed to provide secure fastening in various engine applications, ensuring that parts remain tightly secured under operational stresses.

QSB5.9 CM850 and QSC8.3 CM850 (CM2850)

In the QSB5.9 CM850 and QSC8.3 CM850 (CM2850) engines, the Round Head Cap Screw 4945799 is used in several key areas. These engines, known for their robust performance and reliability, often require precise fastening solutions to maintain structural integrity and operational efficiency. The screw is typically employed in securing engine covers, brackets, and other critical components that need to withstand high torque and vibration.

QSM11 CM570

The QSM11 CM570 engine also utilizes the Round Head Cap Screw 4945799 for similar purposes. This engine, designed for heavy-duty applications, demands components that can endure significant mechanical stress. The screw’s design ensures that it can maintain a tight hold on various parts, contributing to the engine’s overall durability and performance.

Each of these engines benefits from the use of this screw in maintaining the integrity of their assemblies, ensuring that all parts remain securely fastened and properly aligned. This is crucial for the longevity and efficiency of the engines, as any loosening or misalignment can lead to operational issues and potential failures.

Role of Part 4945799 Round Head Cap Screw in Engine Systems

The part 4945799 Round Head Cap Screw is instrumental in securing various components within engine systems, ensuring both the integrity and functionality of the assembly.

In the context of the Electronic Control Module (ECM) Wiring Harness, the Round Head Cap Screw is utilized to fasten the harness to the chassis or other structural elements. This secure attachment is essential for maintaining the harness’s position and protecting it from potential damage due to vibrations or movement.

When dealing with the Harness itself, these screws play a role in attaching smaller components or connectors that are part of the harness assembly. This ensures that all connections remain stable and undisturbed during engine operation.

For the Engine Control Wiring, the Round Head Cap Screw is often used to secure wiring looms or bundles to the engine bay. This not only organizes the wiring but also prevents it from coming into contact with moving parts or hot surfaces, which could lead to damage.

In the Engine Control Module (ECM), these screws are employed to attach the module to its mounting bracket or directly to the vehicle’s chassis. This secure attachment is vital for the module’s operation, as it ensures a stable platform for the ECM to function correctly.

Lastly, in the broader Wiring Harness system, the Round Head Cap Screw is used extensively to secure various points along the harness route. This includes attaching the harness to the firewall, under the dashboard, or within the engine compartment, ensuring that the harness remains in its intended path and does not interfere with other components.

Conclusion

The 4945799 Round Head Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its design and features ensure secure fastening, durability, and resistance to environmental factors, contributing to the overall reliability and performance of the vehicle. Proper installation, regular maintenance, and prompt troubleshooting of common issues are essential for maximizing the lifespan and effectiveness of this part.