3895440
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3895440, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is significant in the realm of truck maintenance due to its robust design and reliable performance. Cummins, known for its high-quality engine and component manufacturing, ensures that this screw meets the demanding standards required for commercial truck applications ¹.

Basic Concepts

Hexagon Flange Head Cap Screws are designed with a hexagonal head that provides a larger surface area for torque application, reducing the risk of cam-out during installation. These screws are typically made from materials such as alloy steel, which offers a balance of strength and durability. In the automotive industry, they are commonly used to secure various components, ensuring that parts remain firmly in place under operational stress ².

Purpose and Functionality

The 3895440 Hexagon Flange Head Cap Screw plays a role in the operation of a truck by securing critical components and contributing to the structural integrity of the vehicle. It is often used in applications where vibration and dynamic loads are present, ensuring that parts remain securely fastened. This screw helps maintain the alignment and functionality of truck components, which is vital for safe and efficient operation ³.

Key Features

The primary characteristics of the 3895440 Hexagon Flange Head Cap Screw include its hexagonal flange head design, which allows for easier and more secure fastening. The material composition, typically alloy steel, provides the necessary strength and durability for heavy-duty applications. Additionally, the threading specifications are designed to ensure a tight and secure fit, reducing the likelihood of loosening over time.

Benefits

The 3895440 Hexagon Flange Head Cap Screw offers several advantages. Its design enhances durability, making it suitable for demanding commercial truck environments. The screw’s resistance to loosening ensures that components remain securely fastened, even under vibration and dynamic loads. Furthermore, the ease of installation and removal simplifies maintenance procedures, allowing for quick and efficient repairs.

Installation and Usage

Proper installation of the 3895440 Hexagon Flange Head Cap Screw involves using the recommended torque specifications to ensure a secure fastening. It is important to follow best practices, such as using a torque wrench to apply the correct amount of force. This ensures that the screw is tightened to the manufacturer’s specifications, providing optimal performance and longevity.

Troubleshooting and Maintenance

Common issues with the 3895440 Hexagon Flange Head Cap Screw may include corrosion, stripping, or loosening. To address these problems, regular inspections should be conducted to identify any signs of wear or damage. Maintenance tips to prolong the lifespan of the screw include applying an anti-corrosion coating and ensuring that it is properly torqued during installation. Additionally, replacing screws that show signs of wear can prevent potential failures.

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 strong reputation in the commercial truck industry for producing reliable and high-performance components. The company’s extensive product offerings and commitment to innovation make it a trusted name among truck manufacturers and maintenance professionals.

Hexagon Flange Head Cap Screw (Part 3895440) in Cummins Engines

The Hexagon Flange Head Cap Screw, identified by part number 3895440, is a critical component in various Cummins engines. This screw is designed to provide secure fastening in applications that require robust and reliable connections. Here’s how it fits into different Cummins engine models:

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

The ISM series engines, including the ISM CM570, ISM CM570/870, ISM CM876, and ISM11 CM876 SN, utilize the Hexagon Flange Head Cap Screw in several critical applications. This screw is often used in the engine’s mounting system, ensuring that components are securely fastened and aligned. Its flange design provides a larger surface area for the application of torque, which is essential for maintaining the integrity of the engine’s structure.

L10 Series Engines

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

In the L10 series engines, such as the L10 CELECT, L10 GAS, and L10 MECHANICAL, the Hexagon Flange Head Cap Screw is employed in various structural and functional applications. These engines often require precise and reliable fastening solutions, and the flange head design of the screw ensures that it can withstand the operational stresses and torques. This screw is particularly useful in securing engine components to the frame or other structural elements, ensuring stability and durability.

M11 Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The M11 series engines, including the M11 CELECT, M11 CELECT PLUS, and M11 MECHANICAL, also benefit from the use of the Hexagon Flange Head Cap Screw. In these engines, the screw is often used in applications that require high strength and resistance to loosening. The flange head provides a larger bearing surface, which is crucial for maintaining the integrity of the engine’s components under high-stress conditions. This screw is typically used in securing various engine parts, ensuring that they remain tightly fastened and properly aligned.

QSM11 Series Engines

• QSM11 CM570
• QSM11 CM876

The QSM11 series engines, such as the QSM11 CM570 and QSM11 CM876, incorporate the Hexagon Flange Head Cap Screw in their design to ensure reliable and secure fastening. This screw is used in applications where precision and durability are paramount. The flange head design allows for effective torque application, which is essential for maintaining the structural integrity of the engine. It is commonly used in securing various engine components, ensuring that they remain tightly fastened and properly aligned.

Role of Part 3895440 Hexagon Flange Head Cap Screw in Engine Systems

The part 3895440 Hexagon Flange Head Cap Screw is integral to the secure assembly and operation of various engine components. Its design and function facilitate the reliable attachment and fastening of multiple parts within the engine system.

Cylinder Block and Cylinder Block Kit

In the cylinder block, the Hexagon Flange Head Cap Screw is used to fasten components such as the cylinder head, ensuring a tight seal that prevents coolant and oil leaks. Within the cylinder block kit, these screws secure the main bearing caps, which are essential for maintaining the crankshaft’s alignment and reducing friction.

Lubricating Pump Mounting Kit

The lubricating pump mounting kit relies on the Hexagon Flange Head Cap Screw to attach the pump securely to the engine block. This ensures that the pump operates efficiently, delivering the necessary lubrication to moving parts and reducing wear and tear.

Turbocharger Arrangement

In turbocharger setups, these screws are employed to mount the turbocharger to the engine, ensuring that it remains firmly in place under high-stress conditions. This secure attachment is vital for the turbocharger’s performance and durability, as it operates at high speeds and temperatures.

Lubricating Oil System

The lubricating oil system components, such as filters and passages, are often fastened using Hexagon Flange Head Cap Screws. This ensures that the oil flow is uninterrupted and that all moving parts receive consistent lubrication, which is essential for the engine’s longevity and performance.

General Application

Across these applications, the Hexagon Flange Head Cap Screw provides a robust fastening solution that can withstand the dynamic forces and high temperatures present in engine environments. Its flanged head design offers additional surface area for torque application, enhancing the screw’s ability to maintain a secure hold over time.

Conclusion

The 3895440 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of Cummins engines. Its robust design, reliable performance, and ease of installation make it an essential part for securing critical components in various engine systems. Regular maintenance and proper installation practices ensure the longevity and efficiency of this Cummins part.