3950167
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3950167, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is significant for its role in fastening various components within commercial trucks, ensuring structural integrity and operational efficiency. Cummins, known for its high-quality engine and component manufacturing, provides this screw as part of its extensive range of truck parts.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient tightening and loosening using a wrench or socket, while the flange distributes the load over a larger area, reducing the risk of the screw pulling through the material. Within a truck’s mechanical system, these screws are used to secure components that require a high degree of stability and resistance to vibration.

Purpose and Role in Truck Operation

The 3950167 Hexagon Flange Head Cap Screw plays a specific role in the operation of a truck by securing critical components that are subject to significant stress and vibration. Its applications include fastening engine parts, transmission components, and chassis elements. The screw’s design ensures that these components remain firmly in place, contributing to the overall reliability and safety of the truck.

Key Features

The 3950167 Hexagon Flange Head Cap Screw features a hexagonal head that facilitates easy and precise tightening. The flange at the base of the screw provides additional surface area for load distribution, enhancing the screw’s performance under stress. Made from high-strength materials, this screw offers excellent durability and resistance to corrosion. Its design also includes features that prevent loosening due to vibration, ensuring long-term reliability in demanding truck environments.

Benefits

The benefits of using the 3950167 Hexagon Flange Head Cap Screw include improved fastening security, which is crucial for components that experience significant vibration and stress. The screw’s resistance to loosening ensures that critical parts remain securely fastened, reducing the risk of failure. Additionally, the ease of installation and removal, thanks to its hexagonal head, allows for efficient maintenance and repair processes.

Installation and Usage

Proper installation of the 3950167 Hexagon Flange Head Cap Screw involves using the correct torque specifications to ensure optimal performance and longevity. It is important to use the appropriate tools to tighten the screw to the manufacturer’s recommended torque settings. Following best practices, such as cleaning the installation surface and inspecting the screw for any damage before use, will help ensure reliable performance.

Troubleshooting and Maintenance

Common issues with the 3950167 Hexagon Flange Head Cap Screw may include loosening or corrosion. Regular inspection and maintenance can help identify and address these issues early. If corrosion is detected, cleaning the affected area and applying a corrosion-resistant coating can help prolong the screw’s service life. Ensuring that the screw is properly torqued during installation will also help prevent loosening.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s extensive product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial trucking. The 3950167 Hexagon Flange Head Cap Screw is a testament to Cummins’ commitment to quality and reliability in truck components.

Hexagon Flange Head Cap Screw 3950167 in Cummins Engines

The Hexagon Flange Head Cap Screw 3950167, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is designed to provide a secure fastening solution, ensuring that parts remain tightly secured under operational conditions. Its application spans across a range of Cummins engines, each with distinct characteristics and applications.

ISC Series Engines

The ISC series engines, including the ISC CM2150, ISC CM554, and ISC CM850, benefit from the use of the 3950167 screw. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The screw’s design ensures that critical components within these engines are held firmly in place, contributing to the engine’s overall durability and efficiency.

ISL Series Engines

Similarly, the ISL series engines, such as the ISL CM2150, ISL CM554, ISL G CM2180, and ISL9 CM2150 SN, utilize the 3950167 screw. These engines are designed for both on-highway and off-highway applications, providing a balance of power and fuel efficiency. The screw’s flange head and hexagon socket provide a strong grip, essential for maintaining the integrity of engine components under varying operational stresses.

L Series Engines

The L series engines, including the L GAS PLUS CM556 and L9 CM2670 L128B, also incorporate the 3950167 screw. These engines are typically used in applications requiring lower emissions and higher efficiency. The screw’s precision engineering ensures that components are securely fastened, contributing to the engine’s performance and longevity.

QSC Series Engines

The QSC series engines, such as the QSC8.3 CM554 and QSC8.3 CM850 (CM2850), utilize the 3950167 screw to maintain the structural integrity of their components. These engines are designed for high-performance applications, often found in construction and agricultural equipment. The screw’s design allows for easy installation and removal, facilitating maintenance and repairs.

QSK Series Engines

The QSK series engines, including the QSK95 CM2350 K111 and QSK95 CM2350 K113, also incorporate the 3950167 screw. These engines are known for their high power output and reliability, often used in marine and power generation applications. The screw’s robust design ensures that components remain securely fastened, even under extreme conditions.

QSL Series Engines

Lastly, the QSL series engines, such as the QSL8.9 CM2150 L141 and QSL9 CM554, QSL9 CM850 (CM2850), use the 3950167 screw. These engines are designed for high-performance applications, often found in heavy-duty trucks and industrial equipment. The screw’s precision engineering ensures that components are held securely, contributing to the engine’s overall performance and durability.

Role of Part 3950167 Hexagon Flange Head Cap Screw in Engine Systems

The part 3950167 Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. Its design allows for efficient torque transmission and robust fastening, which is essential for the reliable operation of engine systems.

Block and Cylinder Assembly

In the block and cylinder assembly, the Hexagon Flange Head Cap Screw ensures that the cylinder block is firmly attached to the engine frame. This secure attachment is vital for maintaining the structural stability of the engine, especially under the high stresses and vibrations generated during operation. The screw’s flange head provides additional surface area for distribution of clamping force, reducing the risk of component warping or misalignment.

Cylinder Block Kit

When integrating a cylinder block kit, the Hexagon Flange Head Cap Screw plays a significant role in attaching the cylinder block to the engine housing. This secure fastening is necessary to ensure that the cylinder block remains in precise alignment with other engine components, such as the pistons and crankshaft. Proper alignment is essential for optimal engine performance and longevity.

Housing and Front Gear

The screw is also used in securing the housing to the front gear. This application ensures that the front gear remains stable and correctly positioned, which is important for the smooth operation of the engine’s timing mechanism. The flange head of the screw provides extra stability, preventing any potential shifting that could lead to timing issues.

Short Block

In the short block assembly, the Hexagon Flange Head Cap Screw is employed to fasten the cylinder block to the crankcase. This secure attachment is necessary to maintain the structural integrity of the short block, ensuring that all internal components, such as the crankshaft and pistons, operate within their designed parameters.

Support and Rear Engine Components

The screw is also vital in supporting rear engine components, such as the rear engine housing and support structures. By providing a strong and reliable fastening solution, it ensures that these components remain securely in place, contributing to the overall stability and performance of the engine. The flange head design of the screw enhances its ability to distribute clamping force evenly, further ensuring that rear engine components do not shift or become misaligned during operation.

Conclusion

The 3950167 Hexagon Flange Head Cap Screw is a critical component in the operation and maintenance of Cummins engines and commercial trucks. Its design and features ensure secure fastening of critical components, contributing to the overall reliability, safety, and performance of the vehicle. Proper installation, maintenance, and understanding of its role in various engine systems are essential for maximizing the benefits of this Cummins part.

References