138046
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw, Part #138046 by Cummins, is a specialized fastener designed for use in commercial trucks. This screw is integral to the assembly and maintenance of various truck components, ensuring secure and reliable fastening in demanding environments.

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 tightening and loosening using a wrench or socket. These screws are designed with a threaded shank that engages with internal threads in a component, providing a strong and durable connection. Cap screws are commonly used across various industries for their reliability and ease of use in fastening applications ¹.

Purpose of the 138046 Hexagon Head Cap Screw in Truck Operation

The 138046 Hexagon Head Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is used to secure critical components, contributing to the overall assembly and structural integrity of the truck. By providing a strong and reliable fastening solution, this screw helps ensure that truck components remain securely in place, even under heavy loads and harsh conditions ².

Key Features of the 138046 Hexagon Head Cap Screw

The 138046 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. It is composed of high-strength materials, typically alloy steel, which provides excellent tensile strength and resistance to wear. The screw features a coarse thread type, which offers a robust grip and efficient load distribution. Additionally, it may include special coatings or treatments, such as zinc plating or black oxide, to improve corrosion resistance and extend its service life ³.

Benefits of Using the 138046 Hexagon Head Cap Screw

Using the 138046 Hexagon Head Cap Screw offers several advantages. Its high-strength material composition ensures increased durability and resistance to failure under load. The screw’s corrosion-resistant coatings help protect it from environmental factors, enhancing its longevity. Furthermore, the hexagonal head design allows for easy installation and removal, making it a practical choice for maintenance and repair tasks.

Installation and Usage Guidelines

Proper installation of the 138046 Hexagon Head Cap Screw is crucial for ensuring a secure and lasting fastening. It is recommended to use the appropriate torque specifications provided by the manufacturer to achieve the correct tension without over-tightening, which could damage the screw or the component. Utilizing the right tools, such as a torque wrench, ensures precise application of force. Following best practices, such as cleaning the mating surfaces and inspecting the screw for any defects before installation, will help maintain the integrity of the fastening ⁴.

Troubleshooting Common Issues

Common problems associated with Hexagon Head Cap Screws include loosening, stripping, and corrosion. To address these issues, regular inspections should be conducted to check for signs of wear or damage. If a screw appears loose, it should be re-tightened to the specified torque. In cases of stripping, the damaged screw should be replaced with a new one. Corrosion can be mitigated by applying protective coatings or using screws with enhanced corrosion resistance.

Maintenance Tips

To ensure the longevity and performance of the 138046 Hexagon Head Cap Screw, regular maintenance is recommended. This includes periodic checks for tightness, especially after significant use or environmental exposure. Inspecting the screw for signs of wear, such as threading damage or head deformation, will help identify potential issues early. Additionally, maintaining protective coatings and applying lubricants where appropriate can prevent corrosion and facilitate easier future removal.

Cummins: A Brief Overview

Cummins Inc. is a renowned manufacturer of high-quality automotive and engine components, with a strong reputation in the commercial truck industry. Founded in 1919, Cummins has a long history of innovation and reliability, consistently delivering products that meet the demanding requirements of heavy-duty applications. The company’s commitment to excellence is evident in its wide range of components, including the 138046 Hexagon Head Cap Screw, which is designed to provide superior performance and durability in commercial truck operations.

Cummins Engine Part 138046: Hexagon Head Cap Screw

The Cummins part number 138046, a Hexagon Head Cap Screw, is a critical component in the assembly and maintenance of several Cummins engines. This screw is utilized in various applications across different engine models, ensuring structural integrity and proper functioning.

NH/NT 855 Engines

In the NH/NT 855 engines, the Hexagon Head Cap Screw is employed in several key areas. It is often used to secure components within the engine block, ensuring that parts remain tightly fastened and aligned. This screw’s design allows for easy installation and removal, making it a preferred choice for maintenance tasks.

V903 Engines

Similarly, in the V903 engines, the Hexagon Head Cap Screw plays a vital role in maintaining the structural integrity of the engine. It is used to fasten various parts, including those within the engine block and other critical assemblies. The screw’s robust design ensures that it can withstand the operational stresses of the engine, contributing to the overall reliability and performance of the V903.

N14 Engines

For the N14 engines, whether they are equipped with CELECT or MECHANICAL systems, the Hexagon Head Cap Screw is integral to the engine’s assembly. This screw is used in multiple applications, including securing the engine block, fastening components within the cylinder head, and ensuring that all parts are properly aligned and fastened. Its design allows for efficient assembly and disassembly, making it a crucial part of the engine’s maintenance routine.

6C8.3 Engines

In the 6C8.3 engines, the Hexagon Head Cap Screw is used in various applications to maintain the engine’s structural integrity. It is employed in securing components within the engine block and other critical assemblies. The screw’s design ensures that it can withstand the operational stresses of the engine, contributing to the overall reliability and performance of the 6C8.3.

Each of these engines benefits from the use of the Hexagon Head Cap Screw, which is designed to provide a secure and reliable fastening solution. Its use across different engine models highlights its versatility and importance in maintaining the integrity and performance of Cummins engines.

Role of Part 138046 Hexagon Head Cap Screw in Engine Systems

Part 138046, the Hexagon Head Cap Screw, is integral to the assembly and securement of various engine components. It is commonly used in the fastening of the cooler lubricating oil filter, ensuring that the filter is securely attached and functions effectively in maintaining the cleanliness of the engine oil.

In the engine mounting system, this screw plays a significant role in securing the engine to the chassis or frame of the vehicle. This is essential for maintaining the structural integrity and alignment of the engine within the vehicle.

For the filter cooler and lubricating oil filter cooler, the Hexagon Head Cap Screw is utilized to fasten these components, ensuring they remain in place and operate efficiently in cooling and filtering the engine oil.

The front engine support and front support components also benefit from the use of this screw. It helps in securing these supports, which are vital for maintaining the engine’s position and absorbing vibrations.

In the context of the full flow oil filter and conventional spin-on oil filter, the screw is used to ensure these filters are tightly secured, allowing for efficient oil filtration and preventing leaks.

Lastly, in the rear skid mounting support, the Hexagon Head Cap Screw is employed to secure this component, which is important for protecting the underside of the engine and other components from ground contact and impacts.

Overall, the Hexagon Head Cap Screw is a fundamental fastening component in various engine systems, ensuring the secure attachment and efficient operation of critical engine components.

Conclusion

The 138046 Hexagon Head Cap Screw by Cummins is a vital component in the assembly and maintenance of commercial trucks and engines. Its high-strength material, robust design, and corrosion-resistant features make it an ideal choice for securing critical components in demanding environments. Proper installation, regular maintenance, and timely troubleshooting are essential for ensuring the longevity and performance of this screw, contributing to the overall reliability and efficiency of truck and engine operations.