4930126
Hexagon Head Cap Screw
Cummins®

The Cummins Hexagon Head Cap Screw, part number 4930126, is a specialized fastener designed for use in commercial trucks. This part plays a significant role in ensuring the reliable performance of truck assemblies by providing secure and durable fastening solutions. Its design and material composition are tailored to meet the demanding requirements of heavy-duty applications, contributing to the overall efficiency and safety of commercial vehicles.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient torque application using common hand tools such as wrenches or sockets. The hexagonal shape prevents the screw from rounding off during tightening, ensuring a secure fit. This design is particularly advantageous in applications where frequent adjustments or removals are necessary, as it facilitates easy and precise manipulation ¹.

Purpose of the 4930126 Hexagon Head Cap Screw in Trucks

This Cummins part is integral to the operation of commercial trucks, where it is used in various assemblies that require robust and reliable fastening. Common applications include securing engine components, transmission parts, and chassis elements. By providing a strong and stable connection, this screw helps maintain the structural integrity and performance of critical truck systems.

Key Features

The 4930126 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. It is typically made from high-strength steel, which offers excellent resistance to wear and tear. The screw features a fine or coarse thread, depending on the specific application, allowing it to grip effectively in various materials. Additionally, it may be coated with a protective layer to resist corrosion, further extending its service life in harsh environments.

Benefits

Using the 4930126 Hexagon Head Cap Screw offers several benefits. Its high-strength material composition ensures improved resistance to loosening, even under vibrations and dynamic loads commonly experienced in truck operations. The hexagonal head design allows for easy installation and removal, reducing downtime during maintenance procedures. Furthermore, the potential corrosion-resistant coating enhances the screw’s longevity, making it a reliable choice for long-term use in commercial trucks.

Installation Guidelines

Proper installation of the 4930126 Hexagon Head Cap Screw is vital to ensure optimal performance and longevity. To install, first, ensure the mating surfaces are clean and free of debris. Use the appropriate wrench or socket to drive the screw into place, applying even torque to avoid cross-threading. It is recommended to use a torque wrench to achieve the specified torque value, ensuring a secure yet not overtightened connection. Regular inspection and tightening may be necessary to maintain the screw’s effectiveness over time.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibrations and corrosion in exposed applications. To troubleshoot, regularly inspect screws for signs of wear or corrosion. If loosening is detected, re-tighten the screw to the specified torque value. In cases of significant corrosion, replacement may be necessary to ensure continued reliable performance. Applying a thread locker can also help prevent loosening in high-vibration environments.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history dating back to 1919, Cummins has established itself as a trusted name in the automotive industry, known for its commitment to quality and innovation. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the rigorous demands of commercial and industrial applications. Cummins’ dedication to excellence ensures that its products, like the 4930126 Hexagon Head Cap Screw, deliver reliable performance and durability ².

Cummins Hexagon Head Cap Screw 4930126 in K38 and K50 Engines

The Cummins Hexagon Head Cap Screw part number 4930126 is a critical component in the assembly and maintenance of both the K38 and K50 engines. This screw is designed to provide a secure and reliable fastening solution, ensuring that various parts of the engine remain tightly connected under operational stresses.

In the K38 engine, the 4930126 screw is often utilized in applications where high-strength fastening is required. Its hexagonal head allows for easy and efficient tightening and loosening with a wrench or socket, making it ideal for use in areas that may require frequent access for maintenance or adjustments.

Similarly, in the K50 engine, the 4930126 screw plays a vital role in maintaining the structural integrity of the engine. Its robust design ensures that the screw can withstand the operational stresses and environmental conditions encountered in heavy-duty applications. The precision manufacturing of this screw by Cummins guarantees that it meets the stringent requirements for performance and durability in these demanding engines.

Both engines benefit from the use of the 4930126 screw in various applications, including securing engine covers, mounting brackets, and other critical components. The screw’s compatibility with both engines highlights its versatility and importance in the overall assembly and maintenance of these Cummins power units.

Role of Part 4930126 Hexagon Head Cap Screw in Engine Systems

In the intricate assembly of engine systems, the part 4930126 Hexagon Head Cap Screw serves as a fundamental fastening component. Its primary function is to securely join various engine components, ensuring structural integrity and proper operation.

Application in Rails

The 4930126 Hexagon Head Cap Screw is extensively used in the assembly of rails within engine systems. Rails often support moving parts or provide structural support. The screw’s hexagonal head allows for efficient torque application, ensuring that the rail remains firmly in place under operational stresses. This secure fastening prevents misalignment and potential damage to other engine components.

Integration with Bases

In the context of engine bases, the 4930126 Hexagon Head Cap Screw plays a significant role in anchoring the base to the engine frame or other supporting structures. The base is a critical component that provides a stable foundation for the engine. By using this screw, engineers ensure that the base is tightly secured, which is essential for maintaining the engine’s alignment and overall stability. This, in turn, contributes to the engine’s efficiency and longevity.

The 4930126 Hexagon Head Cap Screw, through its reliable fastening capabilities, enhances the performance and durability of engine systems by ensuring that critical components like rails and bases are securely attached.

Conclusion

The Cummins Hexagon Head Cap Screw, part number 4930126, is a vital component in the assembly and maintenance of commercial trucks and engines. Its robust design, high-strength material, and corrosion-resistant properties make it an ideal choice for heavy-duty applications. Proper installation and maintenance of this screw are essential to ensure the reliable performance and longevity of truck and engine systems.