3975805
Hexagon Flange Head Cap Screw
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$139.95 $166.54

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Hexagon Flange Head Cap Screw, identified by part number 3975805, is a component manufactured by Cummins, a well-established name in the automotive industry. This screw is significant in the realm of commercial trucks, where it plays a role in ensuring the secure assembly of various components. Cummins, known for its robust and reliable parts, provides this screw as part of its extensive lineup of automotive components.

Basic Concepts

Hexagon Flange Head Cap Screws are designed with a hexagonal head that facilitates easy tightening and loosening using a wrench or socket. This design ensures a firm grip, reducing the risk of slippage during installation or removal. In the automotive industry, these screws are commonly used to secure components that require a high level of durability and resistance to vibration. Their flanged head design also provides additional surface area for distribution of clamping force, enhancing the stability of the fastened components 1.

Purpose and Role in Truck Operation

The 3975805 Hexagon Flange Head Cap Screw serves a specific purpose in the operation of commercial trucks. It is utilized to secure critical components, ensuring they remain firmly in place under various operating conditions. This screw contributes to the structural integrity of the truck by maintaining the alignment and stability of parts that are subject to significant stress and vibration. Its role is particularly important in areas where components must withstand harsh environments and dynamic loads 2.

Key Features

The 3975805 Hexagon Flange Head Cap Screw boasts several key features that make it suitable for demanding applications. Its hexagonal flange head allows for efficient torque application, ensuring a secure fit. The screw is crafted from high-quality materials, typically featuring a corrosion-resistant coating to enhance its longevity in adverse conditions. Additionally, the thread specifications are designed to provide a strong and reliable connection, capable of withstanding significant tensile and shear forces 3.

Benefits

One of the primary advantages of the 3975805 Hexagon Flange Head Cap Screw is its enhanced durability. The materials used in its construction are selected for their ability to resist wear and tear, ensuring long-term performance. Corrosion resistance is another significant benefit, particularly for trucks operating in environments where exposure to moisture and chemicals is common. Furthermore, the design of the screw allows for ease of installation, reducing the time and effort required during maintenance procedures.

Installation Process

Proper installation of the 3975805 Hexagon Flange Head Cap Screw is crucial for ensuring its effectiveness. Begin by aligning the screw with the designated hole in the component. Using an appropriate wrench or socket, gradually tighten the screw to the recommended torque setting. It is important to follow the specified torque settings to avoid over-tightening, which can lead to damage, or under-tightening, which may result in an insecure connection. Ensure that the flange head is flush with the surface to maximize the distribution of clamping force.

Troubleshooting and Maintenance

Regular inspection of the 3975805 Hexagon Flange Head Cap Screw is recommended to identify any signs of wear or corrosion. If the screw appears loose, it should be re-tightened to the specified torque setting. In cases where corrosion is detected, cleaning the affected area and applying a corrosion-resistant coating can help prolong the lifespan of the screw. Should the screw become damaged or stripped, replacement with a new part is advised to maintain the integrity of the fastened components.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and related technologies. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability. The company’s product offerings cater to various industries, with a strong focus on the automotive sector, where their components are known for their durability and performance.

Cummins Part 3975805 Hexagon Flange Head Cap Screw in Engine Applications

The Cummins part 3975805, a Hexagon Flange Head Cap Screw, is a critical component in the assembly and maintenance of various engine models. This part is designed to provide secure fastening in high-stress environments, ensuring the integrity and performance of the engine systems.

L9 CM2670 and L128B Engines

In the L9 CM2670 and L128B engines, the Hexagon Flange Head Cap Screw is utilized in several key areas. These engines, known for their robust design and reliability, often require precise and durable fastening solutions. The part 3975805 is typically used to secure various components, including engine covers, brackets, and other structural elements. Its flange head design allows for a larger bearing surface, distributing the load more evenly and reducing the risk of stripping or loosening over time.

QSC8.3 CM850 (CM2850) Engines

For the QSC8.3 CM850 (CM2850) engines, the Hexagon Flange Head Cap Screw is equally essential. These engines are engineered for demanding applications, and the part 3975805 plays a vital role in maintaining the structural integrity of the engine. It is commonly used in securing engine mounts, exhaust systems, and other critical assemblies. The screw’s hexagonal shape ensures a tight and secure fit, which is crucial for the performance and longevity of these engines.

Common Usage Across Engine Models

Across the L9 CM2670, L128B, and QSC8.3 CM850 (CM2850) engines, the Hexagon Flange Head Cap Screw is a versatile component. Its design allows it to be used in various applications where a strong and reliable fastening solution is required. Whether securing engine covers, brackets, or other structural components, this part ensures that the engine operates smoothly and efficiently. The use of this screw in these engines highlights Cummins’ commitment to quality and durability in their engine components.

Hexagon Flange Head Cap Screw (Part 3975805) Usage in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 3975805, is integral to the assembly and maintenance of various engine systems. This screw is commonly utilized in securing components that require robust fastening solutions to ensure stability and reliability under operational stress.

Support Structures

In engine support structures, the Hexagon Flange Head Cap Screw is employed to fasten brackets, mounts, and other support elements. These structures are essential for maintaining the alignment and integrity of the engine within the vehicle’s chassis. The flange head design of the screw provides a larger surface area for distribution of clamping force, reducing the risk of damage to the fastened materials and enhancing the overall stability of the support framework.

Front Engine Components

For front engine components, such as the engine mount brackets and ancillary attachments, the Hexagon Flange Head Cap Screw plays a significant role. These screws are used to secure components that are exposed to dynamic loads and vibrations. The flange head not only aids in preventing the screw from pulling through the fastened material but also simplifies the tightening and removal processes, which is beneficial during routine maintenance or repairs.

Additionally, the screw’s design allows for efficient torque application, ensuring that components are fastened to the manufacturer’s specified torque settings. This is particularly important in front engine applications where precise fastening is required to maintain engine balance and performance.

Overall, the Hexagon Flange Head Cap Screw (part 3975805) is a versatile fastener that contributes to the structural integrity and operational reliability of engine systems. Its application in support structures and front engine components underscores its importance in ensuring that these critical areas of the engine are securely and effectively assembled.

Conclusion

The 3975805 Hexagon Flange Head Cap Screw is a critical component in the automotive industry, particularly for commercial trucks and various engine models. Its design, featuring a hexagonal flange head, ensures efficient torque application and a secure fit. The screw is crafted from high-quality, corrosion-resistant materials, providing durability and reliability in harsh environments. Proper installation and regular maintenance are essential to ensure the screw’s effectiveness and longevity. Cummins’ commitment to quality and innovation is evident in the design and application of this part, highlighting its importance in the assembly and maintenance of engine systems.


  1. Schuetz, T. (2016). Aerodynamics of Road Vehicles: Fifth Edition. SAE International.

  2. Gillespie, T. D. (2021). Fundamentals of Vehicle Dynamics. SAE International.

  3. Martyr, A. J. (2007). Engine Testing: Theory and Practice: Third Edition. SAE International.

SPECIFICATIONS

Comments
M12 x 1.75 x 45
Package Dimensions
2.3 x 0.5 x 0.5 in
Weight
0.15 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.