3648764
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw, specifically Part #3648764 by Cummins, is a vital component in the realm of commercial trucks. Cummins, a renowned manufacturer in the automotive industry, produces this screw, which is integral to the fastening systems used in truck assemblies. Understanding its design, function, and the role it plays can enhance the efficiency and reliability of truck operations.

Basic Concepts of Hexagon Head Cap Screw

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. The screw’s design includes a threaded shaft that engages with corresponding threads in the material it is fastening, providing a secure connection. This type of screw is commonly used in various applications due to its robustness and ease of use ¹.

Purpose of the 3648764 Hexagon Head Cap Screw in Truck Operations

This Cummins part serves a specific function in the assembly and maintenance of commercial trucks. It is employed in critical fastening applications where durability and reliability are paramount. This screw helps in securing components that are subject to significant stress and vibration, ensuring that parts remain firmly in place during operation.

Key Features

The 3648764 Hexagon Head Cap Screw boasts several key features that make it suitable for demanding applications. Its hexagonal head design allows for straightforward installation and removal using standard tools. The screw is crafted from high-quality materials, typically alloy steel, which provides excellent strength and durability. Additionally, it features precise thread specifications that ensure a secure fit and optimal performance in various truck components.

Benefits

This part offers numerous benefits that contribute to its widespread use in the trucking industry. Its durable construction ensures long-lasting performance even under harsh conditions. The material composition provides corrosion resistance, which is crucial for trucks operating in diverse environments. Furthermore, the screw’s design facilitates easy installation, reducing downtime during maintenance procedures.

Installation Process

Proper installation of the 3648764 Hexagon Head Cap Screw is crucial for ensuring its effectiveness. The process involves several steps: first, ensure the mating threads are clean and free of debris. Next, align the screw with the designated hole and begin threading it by hand to avoid cross-threading. Once started, use a wrench or socket to tighten the screw to the recommended torque specifications, which can typically be found in the manufacturer’s guidelines. Using the correct tools ensures that the screw is tightened to the appropriate level, providing a secure connection without over-tightening.

Troubleshooting Common Issues

Common issues with Hexagon Head Cap Screws can include loosening over time due to vibration, corrosion, or incorrect installation. To address these problems, regular inspections should be conducted to check for any signs of wear or loosening. If corrosion is detected, the affected area should be cleaned, and a corrosion-resistant coating may be applied. Ensuring that the screw is tightened to the proper torque during installation can prevent many of these issues.

Maintenance Tips

To ensure the longevity and performance of the 3648764 Hexagon Head Cap Screw, regular maintenance is recommended. This includes periodic inspections to check for any signs of wear, corrosion, or loosening. If any issues are detected, they should be addressed promptly to prevent further damage. Additionally, following the manufacturer’s guidelines for torque specifications during installation and re-tightening intervals can help maintain the screw’s effectiveness over time.

Cummins: Manufacturer Overview

Cummins is a well-established name in the automotive industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance components, Cummins has built a reputation for excellence. The company’s dedication to advancing technology and maintaining stringent quality control processes ensures that its products, like the 3648764 Hexagon Head Cap Screw, meet the demanding requirements of commercial truck applications ².

Hexagon Head Cap Screw 3648764 in Cummins Engines

The Hexagon Head Cap Screw part number 3648764, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is designed to provide secure fastening in applications where high strength and durability are essential.

K38 and K50 Engines

In the K38 and K50 engines, the 3648764 screw is utilized in several key areas. These engines, known for their robust performance, require reliable fastening solutions to maintain structural integrity and operational efficiency. The screw’s design ensures that it can withstand the stresses and vibrations inherent in engine operations, providing a stable connection that is crucial for the engine’s performance.

QSK50 CM2150 Series

For the QSK50 CM2150 engines, the 3648764 screw plays a vital role in securing various components. These engines are part of Cummins’ QSK series, which is recognized for its high power output and reliability. The screw’s precision in fitting and its ability to maintain a tight hold are essential for the smooth operation of these engines.

• QSK50 CM2150 K107
• QSK50 CM2150 MCRS

In both the K107 and MCRS variants of the QSK50 CM2150, the 3648764 screw is used in critical assemblies where it ensures that parts remain securely fastened under operational conditions. This is particularly important in maintaining the alignment and stability of engine components, which directly impacts the engine’s performance and longevity.

QSK50 CM2350 K108

The QSK50 CM2350 K108 engine also benefits from the use of the 3648764 screw. This engine variant is designed for high-performance applications, and the screw’s role in securing various parts is crucial. The screw’s design allows it to provide the necessary strength and stability, ensuring that the engine components remain securely fastened and aligned, which is essential for the engine’s efficiency and durability.

Role of Part 3648764 Hexagon Head Cap Screw in Engine Systems

Part 3648764, the Hexagon Head Cap Screw, is integral to the assembly and functionality of various engine components. Its primary role is to provide secure fastening, ensuring that components remain firmly in place under the dynamic conditions of engine operation.

Flywheel Housing and Mounting

In the flywheel housing, the Hexagon Head Cap Screw is used to attach the housing to the engine block. This secure attachment is vital for maintaining the alignment and stability of the flywheel, which is essential for smooth power transmission from the engine to the transmission system. Additionally, these screws are employed in the flywheel housing mounting process, where they help in securing the housing to its designated position, ensuring that it remains stable during engine vibrations.

Accessory Support

The Hexagon Head Cap Screw is also utilized in the accessory support arrangement. This includes securing various engine accessories such as alternators, power steering pumps, and air conditioning compressors to the engine block or other mounting points. The secure fastening provided by these screws ensures that these accessories operate efficiently and remain in place, even under the stress of engine vibrations and thermal expansion.

General Housing Applications

Across different housing components within the engine system, the Hexagon Head Cap Screw plays a significant role. Whether it is securing the housing for the timing belt tensioner, the water pump, or other critical engine components, these screws ensure that the housings remain intact and function as intended. This is particularly important in maintaining the integrity of fluid pathways and mechanical linkages within the engine.

Conclusion

In summary, the Hexagon Head Cap Screw (Part 3648764) is a fundamental fastening component in engine systems, providing the necessary secure attachment for a variety of critical engine parts. Its reliable performance under engine stress conditions makes it an indispensable part of engine assembly and maintenance ³.