4930115
Hexagon Head Cap Screw
Cummins®

Introduction

The Cummins 4930115 Hexagon Head Cap Screw is a specialized fastener designed for heavy-duty truck applications. This screw is essential for the assembly and maintenance of various components within Cummins engines and other truck systems. Its robust design and reliable performance make it a preferred choice for ensuring secure fastening of critical parts.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is characterized by its hexagonal head, which allows for efficient tightening and loosening using standard tools such as wrenches or sockets. The hexagonal design provides a secure grip, minimizing the risk of cam-out during use. These screws are commonly used in applications requiring strong, permanent fastening, as they distribute clamping force evenly across the fastened materials ¹.

Purpose and Role in Truck Operation

The 4930115 Hexagon Head Cap Screw plays a significant role in the operation and maintenance of heavy-duty trucks. It is utilized in various applications where secure and durable fastening is required. This includes the attachment of engine components, chassis parts, and other critical assemblies. The screw’s design ensures that it can withstand the high stresses and vibrations encountered in heavy-duty truck environments, contributing to the overall reliability and performance of the vehicle ².

Key Features

The Cummins 4930115 Hexagon Head Cap Screw boasts several key features that enhance its functionality and durability. It is typically made from high-strength materials such as alloy steel, which provides excellent resistance to wear and corrosion. The screw features a coarse thread, which allows for quick and secure fastening. Additionally, the hexagonal head design ensures compatibility with standard tools, facilitating easy installation and removal ³.

Benefits

Using the Cummins 4930115 Hexagon Head Cap Screw offers several benefits. Its high-strength material composition ensures durability and resistance to loosening under vibration, which is crucial in heavy-duty truck applications. The screw’s design also allows for easy installation and removal using common tools, reducing maintenance time and effort. Furthermore, its resistance to corrosion enhances its longevity, even in harsh operating environments ⁴.

Installation Guidelines

Proper installation of the Cummins 4930115 Hexagon Head Cap Screw is vital to ensure optimal performance and longevity. Begin by cleaning the fastening area to remove any debris or contaminants. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings to avoid over-tightening, which can lead to damage, or under-tightening, which can result in insufficient clamping force. Ensure that the screw is aligned correctly with the fastened components to distribute the clamping force evenly ⁵.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration and corrosion. Regular inspection and maintenance can help identify and address these issues promptly. If a screw shows signs of loosening, it should be re-tightened to the specified torque settings. In cases of corrosion, the affected screw should be replaced to prevent failure. Applying a thread locker can also help prevent loosening in high-vibration environments ⁶.

Compatibility and Usage

The Cummins 4930115 Hexagon Head Cap Screw is designed for use in various applications within Cummins engines and other truck systems. It is compatible with a range of components, including engine mounts, chassis parts, and other critical assemblies. Ensuring the correct screw size and type is used for each application is important to maintain the integrity and performance of the fastened components ⁷.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. Founded in 1919, Cummins has a long history of innovation and excellence in the automotive and heavy-duty truck industry. The company is known for its commitment to quality, reliability, and customer satisfaction, making it a trusted name in the industry ⁸.

Cummins Hexagon Head Cap Screw 4930115 in K38 and K50 Engines

The Cummins Hexagon Head Cap Screw 4930115 is a critical component in the assembly and maintenance of the K38 and K50 engines. This part is integral to the structural integrity and operational efficiency of these engines, ensuring that various parts are securely fastened and aligned.

K38 Engines

In the K38 engines, the 4930115 screw is utilized in several key areas. It is often employed in the cylinder head assembly, where it helps to secure the head to the engine block, ensuring a tight seal that is essential for maintaining compression and preventing leaks. Additionally, this screw is used in the engine’s valve train, where it fastens components such as valve covers and rocker arms, ensuring precise alignment and operation. The durability and strength of the 4930115 screw are crucial in withstanding the high stresses and temperatures encountered in the engine environment ⁹.

K50 Engines

Similarly, in the K50 engines, the 4930115 screw plays a vital role in maintaining the structural integrity of the engine. It is commonly found in the engine block, where it secures various components such as the oil pan and timing cover. This screw is also used in the engine’s cooling system, fastening parts like radiators and water pumps, which are critical for maintaining optimal engine temperature. The precision and reliability of the 4930115 screw ensure that these components remain securely in place, contributing to the overall performance and longevity of the K50 engines ¹⁰.

Common Usage in Both Engines

While the specific applications of the 4930115 screw may vary between the K38 and K50 engines, its role in ensuring secure and reliable fastening is consistent across both engine types. The screw’s design, with its hexagonal head, allows for easy and efficient tightening and loosening, making it a preferred choice for maintenance and assembly tasks. Its robust construction ensures that it can withstand the demanding conditions of engine operation, providing long-lasting performance and reliability ¹¹.

Conclusion

The Cummins 4930115 Hexagon Head Cap Screw is a vital component in the maintenance and assembly of Cummins engines and heavy-duty trucks. Its robust design, high-strength material, and reliable performance make it an essential fastener for ensuring secure and durable fastening of critical parts. Proper installation, regular maintenance, and understanding its applications in various engine components contribute to the overall reliability and performance of the vehicle.