3926846
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, specifically part #3926846 manufactured by Cummins, is a component that plays a significant role in commercial truck applications. This screw is designed to secure various components within the truck’s structure, ensuring both the stability and reliability of the assembly. Its unique design and features make it a preferred choice for applications where durability and ease of installation are paramount.

Basic Concepts

The Hexagon Flange Head Cap Screw is characterized by its hexagonal head and flange. The hexagonal head allows for efficient use with wrenches, providing a secure grip that facilitates easy installation and removal. The flange, a flat, circular plate at the base of the screw’s head, serves multiple purposes. It distributes the load more evenly across the surface it contacts, preventing the screw from being driven too far into the material. This design not only enhances the screw’s performance but also protects the connected parts from potential damage ¹.

Purpose and Function

In truck operations, the 3926846 Hexagon Flange Head Cap Screw is utilized to secure components, playing a role in maintaining the structural integrity of truck assemblies. It is commonly used in areas where vibrations and dynamic loads are present, ensuring that parts remain firmly in place under various operating conditions. The screw’s design allows it to withstand significant stress, making it suitable for critical applications within the truck’s structure ².

Key Features

The 3926846 Hexagon Flange Head Cap Screw boasts several key features that contribute to its effectiveness. The hexagonal head provides accessibility with standard wrenches, allowing for straightforward installation and removal. The flange not only aids in load distribution but also acts as a stop, preventing the screw from being over-driven. Additionally, the cap design offers a smooth surface, reducing the risk of damage to the parts it connects ³.

Benefits

Using the 3926846 Hexagon Flange Head Cap Screw offers several advantages. Its design enhances security by ensuring components are firmly held in place. The flange contributes to improved load distribution, reducing stress on the screw and the material it penetrates. Furthermore, the ease of installation and removal facilitated by the hexagonal head and flange design simplifies maintenance procedures, allowing for quick adjustments or replacements when necessary ⁴.

Troubleshooting and Maintenance

Common issues with the 3926846 Hexagon Flange Head Cap Screw may include loosening due to vibrations or corrosion over time. Regular inspections can help identify these problems early, allowing for timely corrections. To maintain the screw’s longevity and reliable performance, it is important to use the correct torque settings during installation. This ensures the screw is tightened to the appropriate level, balancing security with the risk of over-tightening.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and quality, Cummins serves commercial, industrial, and transportation markets worldwide. The company’s commitment to excellence is evident in its wide range of products, including the 3926846 Hexagon Flange Head Cap Screw, which embodies Cummins’ dedication to reliability and performance in demanding applications.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw Part 3926846

The Cummins Hexagon Flange Head Cap Screw part number 3926846 is a versatile component that fits a variety of Cummins engines. This screw is designed to secure various parts within the engine assembly, ensuring stability and integrity during operation. Below is a detailed breakdown of the engines that are compatible with this specific part:

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines, both part of the B series, are medium-duty diesel engines. The 3926846 screw is used in these engines to fasten components such as valve covers, oil pans, and other critical parts that require a secure and reliable fastening solution.

6C8.3 and C8.3 G Engines

The 6C8.3 and C8.3 G engines are high-performance diesel engines often used in heavy-duty applications. The 3926846 screw is utilized in these engines for securing components that are subjected to high stress and vibration, ensuring that the parts remain tightly fastened under demanding conditions.

B3.9 G, B4.5, B5.9 G, and B5.9 GAS PLUS CM556 Engines

These engines, part of the B series, are designed for various applications ranging from medium to heavy-duty. The 3926846 screw is used in these engines to fasten components such as intake manifolds, exhaust manifolds, and other critical parts that require a robust fastening solution.

B6.7 CM2670 B164C and ISB6.7 G CM2180 B118 Engines

The B6.7 CM2670 B164C and ISB6.7 G CM2180 B118 engines are high-performance diesel engines used in heavy-duty applications. The 3926846 screw is used in these engines to secure components such as cylinder heads, fuel injectors, and other parts that require a high level of precision and reliability.

C GAS PLUS CM556 and GTA8.3 CM558 Engines

The C GAS PLUS CM556 and GTA8.3 CM558 engines are designed for high-performance applications. The 3926846 screw is used in these engines to fasten components such as turbochargers, intercoolers, and other parts that are critical to the engine’s performance and durability.

G5.9, G5.9 CM558, G8.3, G8.3 CM558, and ISB (Chrysler) Engines

The G5.9, G5.9 CM558, G8.3, G8.3 CM558, and ISB (Chrysler) engines are medium to heavy-duty diesel engines. The 3926846 screw is used in these engines to secure components such as valve covers, oil pans, and other parts that require a secure fastening solution.

ISB3.9 CM2220 B107, ISB5.9 CM2880 B127, ISB5.9G CM2180, ISBE CM2150, ISBE4 CM850, ISC CM2150, and ISC CM554 Engines

These engines, part of the ISB and ISC series, are designed for a variety of applications. The 3926846 screw is used in these engines to fasten components such as cylinder heads, intake manifolds, and other parts that require a reliable fastening solution.

Role of Part 3926846 Hexagon Flange Head Cap Screw in Engine Systems

The part 3926846 Hexagon Flange Head Cap Screw is integral to the assembly and securement of various components within engine systems. Its robust design allows it to withstand high stress and torque, making it suitable for applications where stability and durability are paramount.

Accessories

In the context of accessories, this screw is often used to secure additional components to the engine, ensuring they remain firmly in place under operational conditions. This includes mounting brackets for auxiliary equipment such as alternators or air conditioning compressors.

Fuel System

Within the fuel system, the Hexagon Flange Head Cap Screw plays a role in attaching fuel filters, fuel pump mounting brackets, and fuel inlet fittings. Its flange head provides additional surface area for a secure fit, reducing the risk of leaks and ensuring consistent fuel delivery.

Heat Shield Arrangement

For heat shield arrangements, this screw is employed to attach heat shields to various engine components. This helps in managing thermal expansion and protecting nearby parts from excessive heat, thereby enhancing the overall durability and performance of the engine.

Turbocharger

In turbocharger applications, the screw is used to secure the turbocharger to the engine block or exhaust manifold. This ensures that the turbocharger remains stable during high-speed operation, contributing to efficient airflow and improved engine performance.

Marine Gear Oil and Front Gear

When dealing with marine gear oil systems and front gears, the Hexagon Flange Head Cap Screw is utilized to secure covers and housings. This prevents oil leaks and maintains the integrity of the gear system, which is essential for smooth operation in marine environments.

Cylinder Block Kit and Filter

In cylinder block kits, this screw is often used to attach various components such as filters and gauges. Its reliable fastening capability ensures that these components remain securely in place, contributing to the engine’s overall efficiency and reliability.

Lubricating Oil Fitting and Fuel Pump Coupling

For lubricating oil fittings and fuel pump couplings, the screw provides a stable attachment point. This is vital for maintaining the proper flow of lubricants and fuel, which are essential for the engine’s operation and longevity.

Front Cover Hardware Kit and Front Gear Cover

In front cover hardware kits and front gear covers, the screw is used to secure these components to the engine. This ensures that the covers remain intact, protecting internal components from debris and contaminants.

Gauge and Oil Level Housing

When installing gauges and oil level housings, the Hexagon Flange Head Cap Screw offers a secure attachment method. This is important for accurate monitoring of oil levels and other vital engine parameters.

Long Block and Long Block Kit

In long block and long block kit assemblies, this screw is used to fasten various components together. Its strength and reliability make it ideal for withstanding the rigors of engine operation.

Engine Control Module and Fuel Pump Mounting

For engine control modules and fuel pump mountings, the screw ensures that these critical components are securely attached. This is essential for maintaining the engine’s electronic systems and fuel delivery.

Plumbing and Turbocharger Repair Kit

In plumbing applications and turbocharger repair kits, the screw is used to secure pipes and turbocharger components. This ensures that all connections remain tight and leak-free, contributing to the engine’s overall performance.

Heat Shield and Timing Pin Housing

Finally, in heat shields and timing pin housings, the Hexagon Flange Head Cap Screw provides a robust fastening solution. This is vital for protecting the engine from heat and ensuring precise timing, respectively.

Conclusion

The 3926846 Hexagon Flange Head Cap Screw by Cummins is a critical component in various commercial truck and engine applications. Its design, characterized by a hexagonal head and flange, offers advantages in terms of ease of installation, load distribution, and durability. The screw’s compatibility with a wide range of Cummins engines underscores its versatility and importance in maintaining the structural integrity and performance of engine systems. Regular maintenance and proper installation practices are essential to ensure the longevity and reliability of this Cummins part.