3093802
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw (Part #3093802) manufactured by Cummins is a specialized fastener designed for use in commercial truck applications. This screw plays a role in ensuring structural integrity and performance within the vehicle. Its design and functionality are tailored to meet the demanding requirements of heavy-duty truck operations, providing reliable fastening solutions for various components ¹.

Basic Concepts

Hexagon Flange Head Cap Screws are characterized by their hexagonal head and flanged design, which offers enhanced grip and resistance to loosening. These screws are commonly used in the automotive industry for applications requiring secure fastening and high resistance to vibration. The flange provides additional surface area for torque application, ensuring that the screw remains tightly fastened under dynamic conditions ².

Purpose and Role in Truck Operation

In commercial trucks, the 3093802 Hexagon Flange Head Cap Screw serves the purpose of securing critical components, such as engine mounts, transmission brackets, and chassis parts. By maintaining a firm connection between these components, the screw contributes to the overall structural integrity of the vehicle. Its role in fastening ensures that components remain in place, even under the stress of heavy loads and rough road conditions, thereby supporting the truck’s performance and safety ³.

Key Features

The 3093802 Hexagon Flange Head Cap Screw features a hexagonal flange head, which provides a larger surface area for tool engagement, facilitating easier and more secure tightening. The screw is typically made from high-strength materials, such as alloy steel, to withstand the rigors of truck operations. Its thread specifications are designed to offer optimal grip and resistance to loosening, while the flange head enhances torque application and reduces the risk of screw rotation during installation.

Benefits

The 3093802 Hexagon Flange Head Cap Screw offers several benefits in truck applications. Its design provides improved fastening strength, ensuring that components remain securely attached. The resistance to loosening helps maintain the integrity of the fastening over time, even in vibrating environments. Additionally, the screw’s durability and compatibility with various truck components and systems make it a reliable choice for heavy-duty applications.

Installation and Usage Guidelines

Proper installation of the 3093802 Hexagon Flange Head Cap Screw is vital for ensuring optimal performance and longevity. Recommended torque settings should be followed to achieve the correct fastening tension without over-tightening, which could lead to damage. Tightening procedures should involve using the appropriate tools to engage the hexagonal head, ensuring even and consistent torque application. Best practices include inspecting the screw and mating surfaces for cleanliness and proper alignment before installation.

Troubleshooting and Maintenance

Common issues with the 3093802 Hexagon Flange Head Cap Screw may include loosening, corrosion, or damage. Regular inspections can help identify these problems early. If loosening is detected, re-tightening to the recommended torque settings is advised. Corrosion can be mitigated by applying a suitable anti-corrosive coating or lubricant during installation. Damaged screws should be replaced to maintain the integrity of the fastening. Routine maintenance, including periodic checks and re-torquing, can prolong the service life of the screw and ensure continued reliability in truck operations.

Cummins Overview

Cummins Inc. is a renowned manufacturer with a long-standing reputation in the automotive industry. The company is committed to producing high-quality components for commercial vehicles, including the 3093802 Hexagon Flange Head Cap Screw. Cummins’ history of innovation and dedication to excellence ensures that their products meet the stringent demands of heavy-duty truck applications, providing reliable performance and durability.

Hexagon Flange Head Cap Screw 3093802 in Cummins Engines

The Hexagon Flange Head Cap Screw part number 3093802, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is designed to secure different parts within the engine assembly, ensuring structural integrity and operational efficiency. Below is a detailed look at how this part integrates with specific Cummins engine models.

B5.9 and B6.7 Series

The Hexagon Flange Head Cap Screw 3093802 is utilized in the B5.9 CM2670 B166C and B6.7 CM2350 B135B engines. These engines are part of the B series, known for their robust performance in various applications. The screw is used to fasten components such as cylinder heads, intake manifolds, and exhaust systems, ensuring that these parts remain securely attached under high operational stresses.

ISBE and ISF Series

In the ISBE CM2150 and ISBE4 CM850 engines, the 3093802 screw is employed to secure critical engine components. Similarly, in the ISF2.8 CM2220 F129 engine, this screw is used to fasten parts that require precise alignment and secure fastening, such as turbochargers and various engine brackets.

ISG and ISX Series

The ISG11 CM2880 G108, ISG12 CM2880 G107, and ISG12 G CMOH6.0 G111 engines also utilize the 3093802 screw. These engines are part of the ISG series, which is known for its high power output and efficiency. The screw is used to secure components like valve covers and other critical parts that need to be tightly fastened to maintain engine performance.

The ISX12 CM2350 X102, ISX12 G CM2180 EJ, ISX12/ISX11.9 CM2250, ISX15 CM2250, ISX15 CM2250 SN, and ISX15 CM2350 X101 engines also incorporate the 3093802 screw. These engines are part of the ISX series, which is widely used in heavy-duty applications. The screw is used to fasten components such as engine blocks, cylinder heads, and other critical parts that require high-strength fastening.

L8.9 and QSB3.3 Series

The L8.9 and L8.9G CMOH2.0 L125B engines use the 3093802 screw to secure various engine components. These engines are known for their durability and performance in demanding applications. The screw is used to fasten parts that need to withstand high operational stresses.

QSC8.3 and QSK95 Series

The QSC8.3 CM850 (CM2850) and QSK95 CM2350 K111, QSK95 CM2350 K113 engines also incorporate the 3093802 screw. These engines are part of the QSK series, which is known for its high power output and efficiency. The screw is used to secure components such as engine blocks and other critical parts that require secure fastening.

Role of Part 3093802 Hexagon Flange Head Cap Screw in Engine Systems

The part 3093802 Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. Its application spans across multiple systems within an engine, ensuring that parts remain firmly in place under operational stress.

Turbocharger and Compressor Systems

In turbocharger and compressor setups, the Hexagon Flange Head Cap Screw is used to fasten the turbocharger to the engine block. This secure attachment is vital for the efficient transfer of air from the compressor to the intake manifold, enhancing air flow and overall engine performance. Additionally, it ensures that the turbocharger’s connection to the exhaust system is stable, allowing for optimal air compression and fuel efficiency.

Crankcase and Breather Systems

Within the crankcase and breather systems, this screw plays a role in securing the breather arrangement to the crankcase. This is important for maintaining the correct pressure within the crankcase, which is essential for the proper functioning of the engine’s lubrication system. It also helps in efficiently managing the air transfer between the crankcase and the atmosphere, reducing the risk of contamination in the engine oil.

Fuel and Air Systems

In fuel systems, the Hexagon Flange Head Cap Screw is utilized in the fuel injection pump and fuel control module mountings. It ensures that these components are securely attached to the engine block, which is necessary for precise fuel delivery and control. Similarly, in air systems, it is used in the air intake manifold and air filter connections, guaranteeing a stable and leak-free pathway for air to enter the engine, which is crucial for combustion efficiency.

Cooling and Lubrication Systems

For the auxiliary cooling outlet and the engine lubricating pump, this screw is essential in maintaining the structural integrity of these components. It ensures that the cooling system’s connections are secure, facilitating efficient heat dissipation from the engine. In the lubrication system, it helps in keeping the oil pump and related components firmly in place, ensuring consistent oil flow and engine protection.

Electrical and Drive Systems

In electrical systems, particularly with the electronic control module wiring harness and the fuel control module, the Hexagon Flange Head Cap Screw is used to secure these sensitive components. This is important for maintaining the integrity of the electrical connections and ensuring reliable engine operation. In drive systems, it is employed in the fan drive and alternator mountings, ensuring that these components are securely attached to the engine, which is vital for the engine’s auxiliary functions.

Performance and Upfit Kits

Lastly, in performance upfit kits, this screw is often used to secure additional components or modifications to the engine. This ensures that these enhancements are safely and effectively integrated into the engine system, allowing for improved performance without compromising safety or reliability.

Conclusion

The 3093802 Hexagon Flange Head Cap Screw is a vital component in Cummins engines, ensuring the secure fastening of critical engine components across various systems. Its robust design and high-strength materials make it suitable for the demanding conditions of heavy-duty truck operations. Proper installation, maintenance, and understanding of its role in engine systems are essential for ensuring the reliability and performance of commercial vehicles.