3093956
Hexagon Flange Head Cap Screw
Cummins®

The Hexagonal Flange Head Cap Screw, specifically Part #3093956 by Cummins, is a vital component in commercial truck applications. Cummins, a renowned manufacturer in the automotive industry, produces this screw to meet the demanding requirements of heavy-duty truck operations. This part is designed to provide reliable fastening solutions, ensuring the integrity and performance of various truck components.

Basic Concepts

Hexagonal Flange Head Cap Screws are engineered with a hexagonal head and a flanged base. This design allows for efficient torque application and prevents the screw from sinking into the material it is fastening. In the automotive industry, these screws are commonly used to secure critical components, ensuring they remain firmly in place under various operational stresses. The flange provides additional surface area, enhancing the screw’s stability and resistance to loosening ¹.

Purpose and Role in Truck Operation

The 3093956 Hexagonal Flange Head Cap Screw plays a significant role in the operation of commercial trucks. It is utilized to fasten components that are subject to vibration and dynamic loads, such as engine mounts, exhaust systems, and chassis parts. By securely holding these components in place, the screw contributes to the overall stability and performance of the truck. Its design ensures that critical parts remain aligned and functional, even under harsh operating conditions ².

Key Features

The 3093956 Hexagonal Flange Head Cap Screw boasts several key features that enhance its performance. Its hexagonal head allows for easy and precise tightening using a wrench or socket, reducing the risk of cam-out. The flanged base provides additional contact area, improving the screw’s resistance to loosening. Additionally, the screw is manufactured from high-quality materials, ensuring durability and corrosion resistance. The threading specifications are designed to provide a strong and secure hold, even in challenging environments ³.

Benefits

The advantages of using the 3093956 Hexagonal Flange Head Cap Screw are numerous. Its design enhances fastening capabilities, making it less likely to loosen over time compared to standard screws. The flanged head offers improved torque application, ensuring components are securely fastened. Furthermore, the screw’s material composition and threading specifications contribute to its durability, making it suitable for use in demanding commercial truck applications ⁴.

Installation and Usage

Proper installation of the 3093956 Hexagonal Flange Head Cap Screw is crucial for achieving optimal performance and longevity. It should be installed using the appropriate torque specifications to ensure a secure fit without over-tightening, which could damage the screw or the material it is fastening. Regular inspection and maintenance are recommended to ensure the screw remains in good condition and continues to perform effectively.

Troubleshooting and Maintenance

Common issues with the 3093956 Hexagonal Flange Head Cap Screw may include loosening, corrosion, or damage. If loosening is detected, re-tightening the screw to the specified torque is recommended. Corrosion can be addressed by cleaning the screw and applying a suitable corrosion-resistant coating. Damaged screws should be replaced to maintain the integrity of the fastened components. Regular maintenance, including inspection for signs of wear or corrosion, will help ensure continued reliable performance.

Cummins Overview

Cummins is a well-established manufacturer with a strong reputation in the automotive industry. Founded in 1919, the company has a long history of innovation and commitment to quality. Cummins is known for producing reliable and high-performance components, including the 3093956 Hexagonal Flange Head Cap Screw. Their dedication to excellence and continuous improvement ensures that their products meet the rigorous demands of commercial truck applications.

Hexagonal Flange Head Cap Screw 3093956 in Cummins Engines

The Hexagonal Flange Head Cap Screw part number 3093956, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is designed to secure different parts of the engine, ensuring structural integrity and operational efficiency. Below is a detailed look at how this part fits into specific Cummins engines:

15N CM2380 M104B, 4B3.9, 6B5.9, 6C8.3, B3.3, B4.5 CM2350 B129B, B5.6 CM2670 B152B, B5.9 CM2670 B166C, B6.7 CM2350 B135B, B6.7 CM2670 B153B, B6.7 CM2670 B164C, B6.7 G CMOH6.0 B125

The 3093956 screw is utilized in these engines to fasten various components, including but not limited to, the cylinder head, valve cover, and other critical engine parts. Its design ensures a tight and secure fit, which is essential for maintaining engine performance and preventing leaks.

C GAS PLUS CM556, D4.0 CM2620 D103B, F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2620 F137B, F4.5 CM2620 F141C

In these engines, the 3093956 screw is often used to secure the intake and exhaust manifolds. This application is crucial for maintaining the proper alignment and sealing of these components, which directly affects engine efficiency and emissions control.

ISB (Chrysler), ISB CM2150, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN, ISB4.5 CM2350 B104

For the ISB series engines, the 3093956 screw is frequently employed in securing the engine block and other heavy-duty components. Its robust design and high-strength properties make it suitable for the demanding conditions these engines operate under. This screw ensures that the engine block remains tightly fastened, which is vital for the engine’s structural integrity and performance.

Role of Part 3093956 Hexagonal Flange Head Cap Screw in Engine Systems

The part 3093956 Hexagonal Flange Head Cap Screw is integral to the assembly and functionality of various engine components. Its design allows for secure fastening, which is essential for maintaining the integrity and performance of the engine system.

Aftercooler

In the aftercooler system, the Hexagonal Flange Head Cap Screw is used to secure components that facilitate the cooling of compressed air. This ensures that the aftercooler operates efficiently, contributing to better engine performance and longevity.

Air Heater Starting Aid

For the air heater starting aid, this screw plays a role in attaching the heater elements and housing. Proper fastening is vital to ensure the heater functions correctly during cold starts, enhancing engine reliability in various operating conditions.

Compressor Coolant Arrangement

Within the compressor coolant arrangement, the screw is employed to secure coolant passages and fittings. This ensures that the coolant flow is maintained without leaks, which is essential for optimal compressor operation and temperature regulation.

Coolant Temperature Sensor

The coolant temperature sensor relies on secure mounting to provide accurate readings. The Hexagonal Flange Head Cap Screw ensures that the sensor is firmly in place, allowing for precise monitoring of coolant temperature and efficient engine management.

Crankcase Breather and Crankcase Breather Arrangement

In both the crankcase breather and its arrangement, the screw is used to attach breather components, ensuring that pressure within the crankcase is properly managed. This helps in maintaining engine health by preventing oil contamination and ensuring smooth operation.

Cylinder Head

The cylinder head assembly utilizes this screw to secure various components, including gaskets and sensors. Proper fastening is essential for maintaining compression integrity and ensuring that the cylinder head functions as intended.

Electrical Accessories and Electrical Starting Accessories

For electrical accessories and starting accessories, the screw is used to mount components securely. This ensures that electrical connections are stable and reliable, which is crucial for the operation of starting systems and other electrical components.

Engine Control Module Location and Engine Control Module Plumbing

In the engine control module (ECM) location and its plumbing, the screw is vital for securing the ECM and its associated plumbing. This ensures that the ECM remains in place and that all connections are secure, allowing for accurate engine control and monitoring.

Engine Coolant Vent

The engine coolant vent system uses the screw to secure vent components, ensuring that excess pressure is released safely. This helps in maintaining the integrity of the coolant system and preventing potential damage.

Engine Monitor Mounting and Engine Monitoring Wiring Harness

For engine monitor mounting and the wiring harness, the screw ensures that all monitoring components are securely attached. This is important for accurate data collection and reliable engine performance monitoring.

Exhaust Recirculation

In the exhaust recirculation system, the screw is used to attach recirculation valves and passages. This ensures that the system operates efficiently, contributing to reduced emissions and improved engine performance.

Front Gear Train Accessory Drive

The front gear train accessory drive system utilizes the screw to secure drive components. This ensures that all accessories driven by the gear train operate smoothly and reliably.

Fuel Filter Location and Fuel Shutoff Valve

At the fuel filter location and for the fuel shutoff valve, the screw is used to secure these critical components. This ensures that the fuel system remains intact and functions correctly, which is essential for engine operation.

Fuel System Primer

The fuel system primer relies on secure mounting to operate effectively. The screw ensures that the primer is firmly in place, allowing for easy and reliable priming of the fuel system.

Nitrogen Oxide Sensor

For the nitrogen oxide sensor, the screw is used to mount the sensor securely. This ensures that the sensor provides accurate readings, which is important for emission control and engine management.

Oil Cooler

In the oil cooler system, the screw is employed to attach cooler components and fittings. This ensures that the oil cooling process is efficient and that the engine operates within optimal temperature ranges.

Performance Parts

Various performance parts, such as upgraded sensors or custom fittings, often require secure mounting. The Hexagonal Flange Head Cap Screw ensures that these parts are firmly in place, allowing for enhanced engine performance.

Turbocharger Coolant Plumbing

Within the turbocharger coolant plumbing, the screw is used to secure coolant passages and fittings. This ensures that the turbocharger operates efficiently and remains cool, contributing to overall engine performance.

Valve Cover and Valve Cover Arrangement

The valve cover and its arrangement utilize the screw to secure the cover and associated components. This ensures that the valve train is protected and that the engine operates smoothly.

Conclusion

In summary, the 3093956 Hexagonal Flange Head Cap Screw is a versatile fastener that plays a significant role in the secure assembly and reliable operation of various engine components. Its design and features make it suitable for demanding commercial truck applications, ensuring the integrity and performance of critical engine systems.