3093957
Hexagon Flange Head Cap Screw
Cummins®

The Cummins Hexagon Flange Head Cap Screw, part number 3093957, is a specialized fastener designed for heavy-duty truck applications. This screw ensures the secure attachment of various components within these vehicles, providing reliability and durability in demanding environments ¹.

Basic Concepts and Functionality

Hexagon Flange Head Cap Screws are engineered to provide secure fastening in mechanical systems. The hexagonal flange head design allows for efficient torque application, ensuring the screw is tightened to the appropriate level without slipping. These screws operate by threading into a pre-drilled hole, creating a strong and stable connection between components. Their design is intended to distribute load evenly, minimizing the risk of loosening under vibration or stress ².

Purpose and Role in Truck Operation

The 3093957 Hexagon Flange Head Cap Screw plays a significant role in the operation of heavy-duty trucks by securing critical components in place. It is often used in applications where high tensile strength and resistance to vibration are required. By maintaining a firm connection between parts, this screw contributes to the overall functionality and reliability of the truck’s mechanical systems ³.

Key Features

The 3093957 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance. Its hexagonal flange head provides a larger surface area for torque application, reducing the likelihood of cam-out during tightening. The screw is typically made from high-strength materials, such as alloy steel, which offers excellent resistance to corrosion and wear. Additionally, the flange design helps to distribute the load more evenly, reducing stress on the screw and the connected components ⁴.

Benefits

Using the 3093957 Hexagon Flange Head Cap Screw offers several advantages. The design of the screw provides improved fastening security, ensuring that components remain firmly attached even under significant stress or vibration. Its ease of installation and removal makes it a practical choice for maintenance and repair tasks. Furthermore, the high-quality material composition enhances the screw’s durability, contributing to prolonged service life ⁵.

Installation and Usage Guidelines

Proper installation of the 3093957 Hexagon Flange Head Cap Screw is vital for optimal performance. It is recommended to use the appropriate torque settings to ensure the screw is tightened to the manufacturer’s specifications. This helps to avoid over-tightening, which can lead to damage, or under-tightening, which may result in insufficient fastening security. The screw should be used in applications where its design and material properties are best suited, such as in areas exposed to high vibration or significant loads ⁶.

Troubleshooting and Maintenance

To troubleshoot common issues with the 3093957 Hexagon Flange Head Cap Screw, it is important to inspect the screw and the surrounding components for signs of wear or damage. Regular maintenance, such as checking for proper torque and ensuring that the screw remains free of corrosion, can help prolong its lifespan. If the screw shows signs of significant wear or damage, it should be replaced to maintain the integrity of the fastening ⁷.

Cummins: Manufacturer Overview

Cummins Inc. is a renowned manufacturer with a rich history in the diesel engine industry. The company is known for its commitment to quality, innovation, and customer satisfaction. Cummins’ expertise in engine manufacturing extends to the production of high-quality fasteners like the 3093957 Hexagon Flange Head Cap Screw. The company’s dedication to rigorous testing and quality control ensures that its products meet the demanding requirements of heavy-duty applications ⁸.

Compatibility with Cummins Engines

The Cummins Hexagon Flange Head Cap Screw part number 3093957 is a versatile component designed to fit a variety of Cummins engines. This screw is integral in securing various parts within the engine assembly, ensuring structural integrity and operational efficiency. Below is a detailed breakdown of the engines with which this screw is compatible:

15N Series Engines

• 15N CM2380 M104B

4B3.9 Series Engines

• 4B3.9

6B5.9 Series Engines

• 6B5.9

6C8.3 Series Engines

• 6C8.3

B4.5 Series Engines

• B4.5
• B4.5 CM2350 B129B
• B4.5 RGT

B5.6 Series Engines

• B5.6 CM2670 B152B

B5.9 Series Engines

• B5.9
• B5.9 CM2670 B166C
• B5.9 G

B6.7 Series Engines

• B6.7
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 G
• B6.7 CM2670 B153B
• B6.7 G CMOH6.0 B125

C GAS PLUS Series Engines

• C GAS PLUS CM556

C8.3 Series Engines

• C8.3
• C8.3 G

F2.8 Series Engines

• F2.8 CM2620 F135B

F3.8 Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B

F4.5 Series Engines

• F4.5 CM2620 F139B

G8.3 Series Engines

• G8.3
• G8.3 CM558

GTA8.3 Series Engines

• GTA8.3 CM558

ISB Series Engines

• ISB (Chrysler)
• ISB CM2150

The compatibility of the Hexagon Flange Head Cap Screw 3093957 across these diverse engine models underscores its importance in maintaining the structural integrity of Cummins engines. This screw is designed to withstand the rigors of engine operation, ensuring that critical components remain securely fastened ⁹.

Role of Part 3093957 Hexagon Flange Head Cap Screw in Engine Systems

The part 3093957 Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. Its robust design ensures reliable fastening in high-stress environments. Here’s how it integrates with specific engine systems:

Aftercooler Water Plumbing

In the aftercooler water plumbing system, this screw is used to secure fittings and connections, ensuring a leak-free pathway for coolant circulation. This helps in maintaining optimal temperatures and efficiency of the aftercooler.

Aftertreatment Device

For aftertreatment devices, the screw plays a role in attaching components such as sensors and housings. This ensures that the device operates within specified parameters, contributing to effective emissions control.

Air Compressor

Within the air compressor system, the screw is employed to fasten critical components like the compressor housing and intake manifolds. This secure attachment is vital for maintaining the compressor’s structural integrity and performance.

Auxiliary Cooling System

In auxiliary cooling systems, the screw is used to mount radiators, fans, and other cooling components. This ensures that these elements remain firmly in place, facilitating efficient heat dissipation.

Camshaft and Gear

For camshafts and gears, the screw is utilized to secure timing chain covers and sprockets. This attachment is essential for maintaining precise timing and smooth operation of the engine’s valvetrain.

Coolant Temperature Sensor

The screw is crucial for mounting the coolant temperature sensor to the engine block or cylinder head. Accurate sensor placement is necessary for reliable temperature readings and effective engine management.

Crankcase Breather Arrangement

In crankcase breather systems, the screw is used to attach breather tubes and filters. This ensures that the system effectively vents pressure and contaminants from the crankcase.

Cylinder Head

The screw is employed in cylinder head assemblies to secure gaskets, sensors, and other components. This ensures a proper seal and efficient operation of the combustion chamber.

Electronic Control Module Wiring Harness

For the electronic control module (ECM) wiring harness, the screw is used to mount the ECM and secure wiring connections. This ensures that the ECM remains stable and that electrical connections are secure.

Engine Control Wiring Harness

In engine control wiring harnesses, the screw is utilized to fasten wiring looms and connectors. This ensures that the wiring remains organized and protected from mechanical damage.

Exhaust Outlet Connection

For exhaust outlet connections, the screw is used to secure the exhaust manifold to the engine block. This ensures a tight seal, preventing exhaust leaks and maintaining efficient flow.

Fan Drive

In fan drive systems, the screw is employed to attach the fan to the engine or auxiliary systems. This ensures that the fan operates efficiently to cool the engine and other components.

Flexible Hose Assembly

The screw is used in flexible hose assemblies to secure connections between rigid and flexible sections. This ensures that the hose remains intact under varying temperatures and pressures.

Fuel Drain Plumbing

In fuel drain systems, the screw is utilized to mount drain valves and fittings. This ensures that fuel can be effectively drained when necessary, maintaining system integrity.

Fuel Filter Plumbing

For fuel filter plumbing, the screw is used to secure filter housings and connections. This ensures that the fuel filter remains in place and functions correctly to remove contaminants.

Fuel Plumbing

In fuel plumbing systems, the screw is employed to attach fuel lines and fittings. This ensures that the fuel delivery system remains secure and leak-free.

Fuel Pump Mounting

The screw is crucial for mounting fuel pumps to the engine or fuel tank. This ensures that the pump remains stable and operates efficiently.

Fuel Supply Plumbing

In fuel supply systems, the screw is used to secure fuel lines and connections. This ensures a consistent and reliable fuel supply to the engine.

Fuel Transfer Pump

For fuel transfer pumps, the screw is utilized to mount the pump and secure connections. This ensures that the pump operates efficiently to transfer fuel as needed.

Full Flow Oil Filter

The screw is employed in full flow oil filter assemblies to secure the filter housing. This ensures that the oil filter remains in place and functions correctly to clean the engine oil.

Kit, 50 DN Service

In service kits, the screw is used to attach various components and ensure they remain securely in place during maintenance procedures.

Nitrogen Oxide Sensor

For nitrogen oxide sensors, the screw is utilized to mount the sensor to the exhaust system. This ensures accurate readings and effective emissions control.

Oil Replenishing System

In oil replenishing systems, the screw is used to secure components such as pumps and valves. This ensures that the system operates correctly to maintain optimal oil levels.

Refrigerant Compressor

For refrigerant compressors, the screw is employed to mount the compressor and secure connections. This ensures that the compressor operates efficiently in air conditioning systems.

Turbocharger Oil Plumbing

In turbocharger oil systems, the screw is used to secure oil lines and fittings. This ensures that the turbocharger receives the necessary lubrication for optimal performance.

Conclusion

The Cummins Hexagon Flange Head Cap Screw, part number 3093957, is a critical component in heavy-duty truck applications. Its robust design, high-quality materials, and versatile compatibility with various Cummins engines make it an essential fastener for ensuring the secure attachment of critical components. Proper installation, regular maintenance, and understanding its role in different engine systems contribute to the overall reliability and performance of heavy-duty trucks.

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