3104699
Studded Captive Washer Screw
Cummins®

The Studded Captive Washer Screw, identified by Part #3104699, is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This part plays a role in various truck applications, contributing to the overall efficiency and reliability of heavy-duty vehicles.

Basic Concepts

A Studded Captive Washer Screw is a type of fastener that includes a threaded stud, a captive washer, and a screw head. The captive washer is designed to remain attached to the stud, ensuring that it does not become misplaced during installation or operation. This screw functions within a truck’s mechanical system by providing a secure fastening solution that helps in joining various components together, ensuring they remain in place under operational stresses ¹.

Purpose and Role

In truck operations, the Studded Captive Washer Screw serves the purpose of securing components and maintaining structural integrity. It is often used in applications where vibrations and dynamic loads are common, such as in the engine compartment or chassis. By providing a robust connection between parts, it helps in ensuring that critical components remain securely fastened, which is vital for the safe and efficient operation of the vehicle ².

Key Features

The Studded Captive Washer Screw is characterized by several key features that enhance its performance. Its design includes a threaded stud that allows for easy installation and removal, a captive washer that prevents loss and ensures consistent torque application, and a screw head that provides a secure grip for tools. The material composition typically includes high-strength steel, which offers excellent durability and resistance to wear and tear.

Benefits

The benefits provided by the Studded Captive Washer Screw include improved durability, resistance to wear and tear, and enhanced fastening capabilities. Its design ensures that it can withstand the rigors of heavy-duty truck applications, providing a reliable fastening solution that contributes to the longevity and performance of the vehicle ³.

Installation and Usage

Proper installation of the Studded Captive Washer Screw involves ensuring that the stud is fully engaged with the mating thread and that the captive washer is correctly positioned. It is recommended to use the appropriate tools to achieve the specified torque, ensuring a secure and consistent fastening. Precautions should be taken to avoid over-tightening, which could lead to damage or failure of the screw or the components being fastened.

Troubleshooting and Maintenance

Common issues related to the Studded Captive Washer Screw may include loosening over time due to vibrations or corrosion. Regular inspection and maintenance are recommended to ensure its reliable operation. If loosening is detected, re-tightening to the specified torque is advised. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosive treatment can help prolong the lifespan of the screw.

Cummins Overview

Cummins is a reputable manufacturer with a long-standing history in the automotive and heavy-duty truck industry. Known for its commitment to quality, Cummins produces a wide range of components that are designed to meet the demanding requirements of heavy-duty applications. The company’s reputation is built on its dedication to innovation, reliability, and customer satisfaction, making it a trusted name in the industry.

Studded Captive Washer Screw (Part 3104699) in Cummins Engines

The Studded Captive Washer Screw, identified as part number 3104699 and manufactured by Cummins, plays a role in the assembly and maintenance of various Cummins engines. This particular hardware component is integral to ensuring the secure fastening of parts within the engine assembly, providing both stability and durability.

ISM CM570 and ISM CM876 Engines

In the ISM CM570 and ISM CM876 engines, the Studded Captive Washer Screw is used in several critical applications. These engines, known for their robust performance and reliability, require precise and dependable fastening solutions to maintain operational integrity. The screw is typically employed in areas where high-stress loads and vibrations are common, ensuring that components remain tightly secured under demanding conditions.

ISM11 CM876 SN Engine

For the ISM11 CM876 SN engine, the Studded Captive Washer Screw is similarly vital. This engine variant, which builds upon the legacy of its predecessors, incorporates advanced engineering to enhance performance and efficiency. The screw’s design, featuring studded and captive washer elements, provides an additional layer of security, preventing loosening due to operational stresses. This is particularly important in maintaining the alignment and integrity of engine components, contributing to the overall longevity and reliability of the engine.

Each of these engines benefits from the use of the Studded Captive Washer Screw, as it ensures that critical parts are fastened securely, reducing the risk of failure and enhancing the engine’s operational lifespan.

Role of Part 3104699 Studded Captive Washer Screw in Engine Systems

The 3104699 studded captive washer screw is a component in the assembly and maintenance of various engine systems, particularly in the support and front engine sections.

In the support section of an engine, this screw plays a role in securing components that require a stable and vibration-resistant connection. Its design allows for efficient load distribution, ensuring that the supported parts remain firmly in place under operational stress. This is particularly important in high-vibration environments where traditional fasteners might loosen over time.

In the front engine area, the 3104699 screw is often used to attach critical components such as sensors, brackets, and auxiliary systems. Its studded design provides additional security by preventing the washer from falling out, which is vital for maintaining the integrity of the connections. This feature is especially beneficial in applications where access for maintenance is limited, as it reduces the risk of part loss during disassembly.

Additionally, the screw’s captive washer design enhances the sealing capabilities between mating surfaces, which is important for preventing fluid leaks in systems where such connections are present. This is particularly relevant in fuel lines, coolant passages, and other fluid dynamics components within the front engine section.

Overall, the 3104699 studded captive washer screw contributes to the reliability and efficiency of engine systems by providing secure, vibration-resistant, and leak-proof connections.

Conclusion

The Studded Captive Washer Screw, part number 3104699, manufactured by Cummins, is a vital component in the automotive and heavy-duty truck industry. Its design and features ensure secure fastening, durability, and resistance to wear and tear, making it essential for the reliable operation of heavy-duty vehicles and engines. Proper installation, regular maintenance, and understanding its role in various engine systems are key to maximizing its benefits and ensuring the longevity of the vehicle.