4329948
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4329948, is a component manufactured by Cummins, a well-regarded name in the automotive and heavy-duty truck industry. This screw is integral to the assembly and maintenance of heavy-duty trucks, ensuring secure fastening and reliable performance under demanding conditions.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area to distribute load and prevent the screw from sinking into softer materials. In a truck’s assembly, this screw is used to join various components securely, contributing to the structural integrity and operational efficiency of the vehicle ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of heavy-duty trucks. It is designed to fasten critical components, ensuring they remain securely in place during operation. This screw is often used in applications where vibration and dynamic loads are common, such as in the engine compartment or chassis. Its design helps maintain the alignment and integrity of parts, which is vital for the truck’s performance and safety ².

Key Features

The 4329948 boasts several key features that enhance its functionality. The hexagonal head design allows for easy and precise tightening using common tools, reducing the risk of damage to the screw or surrounding components. The flange characteristic provides additional bearing surface, which helps distribute the load more evenly and prevents the screw from pulling through the material. Additionally, the screw is typically made from high-strength materials, ensuring it can withstand the rigors of heavy-duty applications ³.

Benefits

Using this part offers several advantages. Its durable material composition ensures long-lasting performance even under extreme conditions. The design resists loosening due to vibration, which is common in heavy-duty truck operations. Furthermore, the ease of installation, thanks to its hexagonal head, allows for quick and efficient fastening, reducing downtime during maintenance procedures.

Installation Process

Proper installation of the 4329948 is crucial for optimal performance and longevity. Begin by ensuring the mating surfaces are clean and free of debris. Use a torque wrench to apply the recommended torque specification to achieve the proper clamping force without over-tightening, which could damage the screw or the components being fastened. It is also beneficial to apply a thread locker to the screw threads to prevent loosening over time.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. Regular inspection during maintenance checks can help identify problems early. If corrosion is detected, cleaning the affected area and reapplying a corrosion-resistant coating can help. For screws that have loosened, re-tightening to the specified torque and applying a thread locker can prevent future issues. Replacing screws that show signs of wear or damage is also recommended to maintain the integrity of the assembly.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer in the automotive industry, with a history of producing high-quality components for heavy-duty trucks. The company is known for its commitment to innovation, quality, and reliability. Cummins’ reputation is built on a legacy of engineering excellence and a dedication to meeting the demanding requirements of the heavy-duty truck market. Their components, including the 4329948, are designed to deliver performance and durability in challenging environments.

Hexagon Flange Head Cap Screw 4329948 in Cummins Engines

The Cummins Hexagon Flange Head Cap Screw part number 4329948 is a critical component in various Cummins engine models. This screw is designed to provide secure fastening in high-stress environments, ensuring the integrity and reliability of the engine’s components.

QSK19 CM2350 K105 and QSK19 CM2350 K114

In the QSK19 CM2350 K105 and QSK19 CM2350 K114 engines, the 4329948 screw is utilized in several key areas. These engines, known for their robust performance, require reliable fastening solutions to maintain the structural integrity of their components under demanding conditions. The screw’s flange head design allows for a secure grip, while its hexagonal shape facilitates easy and efficient tightening with a wrench or socket.

QSK50 CM2350 K108

The QSK50 CM2350 K108 engine also incorporates the 4329948 screw in its assembly. This engine, part of the Cummins QSK series, is designed for heavy-duty applications and demands high-performance fastening solutions. The screw’s ability to withstand significant stress and vibration makes it an ideal choice for securing various engine components, ensuring longevity and reliability in demanding environments.

QST30 CM2350 T101

In the QST30 CM2350 T101 engine, the 4329948 screw plays a crucial role in maintaining the engine’s structural integrity. This engine, known for its versatility and efficiency, relies on the screw’s robust design to secure components that are subjected to high loads and stresses. The screw’s flange head and hexagonal shape provide a secure and reliable fastening solution, contributing to the overall performance and durability of the engine.

Each of these engines benefits from the use of the 4329948 screw, ensuring that critical components remain securely fastened under the demanding conditions they operate in. This screw’s design and material properties make it an essential component in the assembly and maintenance of these Cummins engines.

Role of Part 4329948 Hexagon Flange Head Cap Screw in Engine Systems

The part 4329948 Hexagon Flange Head Cap Screw is integral to the assembly and securement of various components within engine systems. Its design allows it to provide a robust fastening solution that ensures components remain firmly in place under operational conditions.

In the context of an aftertreatment device, the Hexagon Flange Head Cap Screw is often used to secure the device to the engine or exhaust system. This securement is vital for maintaining the structural integrity of the aftertreatment system, which is responsible for reducing emissions by treating exhaust gases before they are released into the atmosphere.

When considering the broader device category, this screw plays a similar role. It is employed in the fastening of sensors, actuators, and other auxiliary devices that are essential for the monitoring and control of engine performance. The flange head of the screw provides additional surface area for torque application, ensuring that these devices are held securely in place, even under the vibrations and thermal cycles experienced during engine operation.

In the specific case of aftertreatment, the screw is particularly important for the attachment of components such as Diesel Particulate Filters (DPFs) and Selective Catalytic Reduction (SCR) systems. These components require precise mounting to function effectively, and the Hexagon Flange Head Cap Screw ensures that they are correctly positioned and maintained under the harsh conditions of the exhaust system.

Overall, the part 4329948 Hexagon Flange Head Cap Screw is a fundamental component in the securement and reliability of engine systems, particularly in the context of aftertreatment and device integration. Its robust design and secure fastening capabilities are essential for the proper functioning and durability of engine components.

Conclusion

The 4329948 Hexagon Flange Head Cap Screw is a critical component in the assembly and maintenance of heavy-duty trucks and Cummins engines. Its design, featuring a hexagonal head and flanged base, ensures secure fastening and reliable performance under demanding conditions. The screw’s key features, including its ease of installation and resistance to vibration, make it an invaluable part in ensuring the structural integrity and operational efficiency of vehicles. Proper installation and maintenance practices are essential to maximize the benefits of this Cummins part, contributing to the longevity and reliability of the engine systems it supports.