3047924
Hexagon Head Set Screw
Cummins®

Introduction

The Hexagon Head Set Screw, part number 3047924, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. This screw is integral to securing components and assemblies within the truck’s mechanical systems. Cummins, a renowned manufacturer in the commercial truck industry, produces this part to meet the demanding requirements of heavy-duty applications.

Basic Concepts of Hexagon Head Set Screws

A Hexagon Head Set Screw is a type of fastener characterized by its hexagonal head, which allows for easy tightening and loosening using a wrench or socket. The design of the set screw enables it to be driven into a part to create a secure fit without the need for a nut. Set screws are commonly used in mechanical assemblies to prevent relative motion between components, ensuring stability and proper function ¹.

Purpose of the 3047924 Hexagon Head Set Screw in Trucks

This Cummins part is utilized in various applications within commercial trucks to secure components such as bearings, gears, and pulleys. It plays a role in maintaining the alignment and integrity of these parts, which is vital for the overall performance and reliability of the truck. Common applications include securing the timing gear to the camshaft and fastening pulleys to shafts ³.

Key Features

The 3047924 Hexagon Head Set Screw is constructed from high-quality materials, typically alloy steel, to provide strength and durability. It features a specific thread type that ensures a secure grip on the components it fastens. Unique design elements, such as a chamfered end, enhance its functionality by allowing for easier insertion and a more precise fit ⁴.

Benefits

Using this part offers several advantages. Its design provides improved security by preventing components from loosening during operation. The hexagonal head allows for easy installation and removal using standard tools. Additionally, the material composition ensures durability, even in harsh operating conditions commonly encountered in commercial trucking ².

Installation and Usage

Proper installation of the 3047924 Hexagon Head Set Screw involves using the appropriate tools, such as a socket wrench, to achieve the recommended torque specifications. This ensures a secure fit without over-tightening, which could damage the screw or the component it is fastening. Best practices include cleaning the mating surfaces before installation and periodically checking the tightness of the screw to maintain a secure fit ³.

Troubleshooting and Maintenance

Common issues with the 3047924 Hexagon Head Set Screw may include loosening due to vibration or corrosion from exposure to the elements. Regular inspection and maintenance, such as tightening the screw to the specified torque and applying a corrosion-resistant coating, can help prolong its lifespan. If corrosion is detected, cleaning the affected area and reapplying the coating is recommended ⁴.

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 reputation for quality and reliability in the commercial truck industry. The company’s product range includes engines, powertrain components, and aftermarket parts, all designed to meet the rigorous demands of heavy-duty applications.

Compatibility with Cummins Engines

The Cummins part number 3047924, a Hexagon Head Set Screw, is designed to fit a variety of Cummins engines. This screw is a critical component in securing various parts within the engine assembly, ensuring that components remain tightly fastened and properly aligned during operation. Below is a detailed breakdown of the engines with which this part is compatible:

K-Series Engines

• K38
• K50

These K-Series engines, known for their robust design and reliability, utilize the Hexagon Head Set Screw 3047924 in several key areas. The screw is often used in the valve train, cylinder head, and other critical assemblies where precise fastening is essential.

N-Series Engines

• N14 CELECT
• N14 MECHANICAL

The N14 CELECT and N14 MECHANICAL engines, both variants of the N14 family, incorporate the Hexagon Head Set Screw 3047924 in various applications. This includes securing components in the fuel injection system, turbocharger assembly, and other critical engine parts. The screw’s design ensures that these components are held securely under the high stresses and vibrations typical of diesel engines.

QSK-Series Engines

• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

The QSK-Series engines, which are part of Cummins’ high-performance lineup, also utilize the Hexagon Head Set Screw 3047924. These engines, used in heavy-duty applications, require reliable fastening solutions to maintain performance and durability. The screw is used in various assemblies, including the engine block, cylinder head, and other critical areas where precise fastening is crucial.

NH/NT 855

The NH/NT 855 engine, another robust Cummins engine, also incorporates the Hexagon Head Set Screw 3047924. This engine, known for its power and reliability, uses the screw in several key areas, including the valve train and other critical assemblies where secure fastening is necessary.

Role of Part 3047924 in Various Components

The 3047924 Hexagon Head Set Screw is integral to the assembly and functionality of several key components in engine systems. Its application spans across various assemblies, ensuring secure fastening and reliable operation.

Base Part and Base Parts

In the construction of base parts, the 3047924 screw is utilized to fasten components securely to the base, providing stability and preventing movement during engine operation. This is particularly important in maintaining the alignment and integrity of the base part, which serves as the foundation for other assemblies.

Brake and Brake Mounting Kit

Within the brake system, the screw plays a role in securing brake components to the mounting kit. This ensures that the brake system remains firmly in place, allowing for efficient and safe operation. The screw’s hexagonal head allows for precise torque application, enhancing the reliability of the brake system.

C-Brake Kit and C-Brake (444) Kit

In the C-brake kit and the specialized C-brake (444) kit, the 3047924 screw is used to fasten brake components, ensuring they are held in the correct position. This is essential for the consistent performance of the braking system, particularly under varying operational conditions.

Engine Brake and Engine Brake Kit

For engine brake systems, the screw is employed in the engine brake kit to secure components within the assembly. This ensures that the engine brake functions correctly, providing the necessary compression release for efficient engine braking.

Engine Brake Mounting Kit

In the engine brake mounting kit, the screw is critical for attaching the engine brake to the engine. This secure attachment is vital for the engine brake to operate effectively, enhancing the overall performance and safety of the engine system.

Lever and Rocker Assemblies

The screw is also used in lever and rocker assemblies, such as the rocker housing, rocker housing assembly, rocker lever, and rocker lever assembly. It ensures that these components are tightly fastened, allowing for smooth and precise movement. This is particularly important in maintaining the functionality and durability of the rocker lever housing and associated parts.

Rocker Housing and Rocker Lever Housing

In the rocker housing and rocker lever housing, the 3047924 screw secures the housing to the engine or other structural components. This ensures that the rocker mechanism operates within the designed parameters, contributing to the engine’s overall performance and reliability.

Conclusion

The 3047924 Hexagon Head Set Screw, through its versatile application across these components, plays a significant role in ensuring the secure assembly and reliable operation of engine systems. Its compatibility with various Cummins engines and its use in critical assemblies underscore its importance in maintaining engine integrity and performance.