137932
Hexagon Head Cap Screw
Cummins®

The Cummins Hexagon Head Cap Screw (Part #137932) is a specialized fastener designed for use in heavy-duty truck maintenance and operation. This screw is integral to ensuring the secure assembly of various truck components, contributing to the overall reliability and performance of the vehicle.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of bolt characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. These screws are widely used in mechanical assemblies to secure components together. They function by converting torque applied to the head into clamping force, which holds parts in place ¹.

Purpose and Role in Truck Operation

This Cummins part plays a significant role in the operation and maintenance of heavy-duty trucks. It is utilized in various truck components, including engine mounts, transmission housings, and chassis assemblies. The screw ensures that these components remain securely fastened under the demanding conditions encountered in heavy-duty applications ².

Key Features

The Cummins Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. It is typically made from high-strength steel, ensuring robustness under heavy loads. The screw features a coarse thread, which provides excellent holding power, and a hexagonal head design that facilitates easy installation and removal. Additionally, the screw may include features such as a corrosion-resistant coating to prolong its lifespan in harsh environments ³.

Benefits

Using the Cummins Hexagon Head Cap Screw in truck maintenance offers several benefits. Its high-strength material and coarse thread design contribute to improved reliability, ensuring that components remain securely fastened. The hexagonal head allows for straightforward installation, reducing the time required for maintenance tasks. Furthermore, the screw’s resistance to loosening helps maintain optimal performance over time ⁴.

Installation Guidelines

Proper installation of the Cummins Hexagon Head Cap Screw is crucial for ensuring secure fastening. Begin by cleaning the mating surfaces to remove any debris or corrosion. Insert the screw into the designated hole and use a wrench or socket to tighten it to the specified torque. It is important to follow the recommended torque specifications to avoid over-tightening, which can damage the screw or the component, and under-tightening, which can lead to loosening.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues. If a screw appears loose, it should be re-tightened to the specified torque. In cases of severe corrosion, replacement may be necessary to ensure continued reliability. Proper lubrication of threads during installation can also help prevent seizing and facilitate future removal.

Safety Considerations

When working with Hexagon Head Cap Screws, it is important to observe several safety considerations. Use the appropriate tools to avoid damaging the screw or the component. Wear personal protective equipment (PPE), such as gloves and safety glasses, to protect against injuries. Ensure that the work area is clean and free from hazards to prevent accidents during installation or maintenance.

Cummins 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 innovation in the automotive and heavy-duty truck industry. The company’s product offerings include a wide range of components and systems designed to enhance the performance and reliability of heavy-duty vehicles.

Cummins Hexagon Head Cap Screw 137932 in NH/NT 855 Engines

The Cummins Hexagon Head Cap Screw part number 137932 is a critical component in the NH/NT 855 engine series. This screw is designed to secure various parts within the engine, ensuring that they remain firmly in place during operation. Its hexagonal head allows for easy tightening and loosening with a wrench or socket, making it an ideal choice for high-stress applications.

In the NH/NT 855 engines, the 137932 screw is often used in areas where durability and reliability are paramount. This includes securing engine blocks, cylinder heads, and other critical components. The screw’s material and construction are specifically engineered to withstand the high temperatures and pressures found within these engines.

The use of the 137932 screw in the NH/NT 855 engines highlights Cummins’ commitment to quality and precision. By utilizing this part, engine manufacturers can ensure that their products meet the stringent demands of modern diesel engines. The screw’s design and material properties contribute to the overall performance and longevity of the engine, making it a vital component in the assembly process.

Role of Part 137932 Hexagon Head Cap Screw in Engine Systems

This part is integral to the assembly and functionality of several key components within engine systems. Its design and specifications make it particularly suitable for applications where secure fastening and resistance to vibration are required.

Bracket Assembly

In the context of bracket assemblies, the Hexagon Head Cap Screw ensures that various brackets are securely fastened to the engine block or other structural components. This secure attachment is vital for maintaining the structural integrity of the engine, especially under the dynamic conditions of operation. The screw’s hexagonal head allows for efficient torque application, ensuring that the bracket remains firmly in place.

Fan & Support TCC (Torque Converter Cooler)

For the fan and support TCC, the Hexagon Head Cap Screw plays a significant role in attaching the fan to its support structure. This attachment is essential for the proper functioning of the cooling system, as it ensures that the fan operates within the correct alignment and under the necessary tension. The screw’s ability to withstand high torque without stripping or loosening is particularly beneficial in this application.

Fan Hub Bracket

When it comes to the fan hub bracket, the Hexagon Head Cap Screw is used to fasten the hub to the fan blades. This connection is critical for the efficient operation of the cooling fan, as it ensures that the fan blades are securely attached and can rotate smoothly. The screw’s design helps in distributing the load evenly, preventing any potential failure points.

Torque Converter Cooler

In the torque converter cooler system, the Hexagon Head Cap Screw is employed to secure the cooler to its mounting bracket. This secure attachment is important for the cooler’s effectiveness in dissipating heat from the torque converter fluid. The screw’s resistance to corrosion and its robust construction ensure long-term reliability in this demanding environment.

Overall, the part 137932 Hexagon Head Cap Screw is a versatile and reliable component that enhances the performance and durability of various engine system components. Its application in these areas underscores the importance of using high-quality fasteners in automotive engineering.

Conclusion

The Cummins Hexagon Head Cap Screw (Part #137932) is a critical component in the maintenance and operation of heavy-duty trucks and engines. Its robust design, high-strength material, and hexagonal head make it an ideal choice for securing various components under demanding conditions. Proper installation, regular maintenance, and adherence to safety guidelines are essential for ensuring the reliability and performance of this screw in automotive applications.