3093744
Hexagon Head Cap Screw
Cummins®

The 3093744 Hexagon Head Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces this screw to meet the demanding requirements of heavy-duty applications. This screw is integral to the assembly and maintenance of commercial trucks, ensuring components are securely fastened.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The design of the screw includes a threaded shaft that engages with the internal threads of a nut or a tapped hole, creating a secure connection. This type of screw is commonly used in applications requiring strong, permanent fastening ¹.

Purpose of the 3093744 Hexagon Head Cap Screw in Truck Operation

The 3093744 Hexagon Head Cap Screw plays a role in the assembly and maintenance of commercial trucks by securing various components. It is used in applications where a robust and reliable fastening solution is required. This includes attaching engine components, chassis parts, and other critical assemblies that undergo significant stress and vibration ².

Key Features

The 3093744 Hexagon Head Cap Screw features a hexagonal head design, which provides a firm grip for tools, ensuring precise and efficient installation. It is composed of high-quality materials, typically alloy steel, which offers excellent strength and durability. The screw’s threading specifications are designed to ensure a secure fit, with precise pitch and thread depth to withstand high loads and vibrations common in truck operations ³.

Benefits

The 3093744 Hexagon Head Cap Screw offers several benefits, including durability due to its high-quality material composition. It also provides corrosion resistance, which is vital for components exposed to various environmental conditions. Additionally, the hexagonal head design allows for easy installation and removal, reducing the time and effort required during maintenance procedures.

Installation Guidelines

Proper installation of the 3093744 Hexagon Head Cap Screw involves several steps. First, ensure the mating surfaces are clean and free of debris. Use the appropriate wrench or socket to begin threading the screw into the designated hole. Apply steady, even pressure to avoid cross-threading. Torque specifications should be followed to achieve the correct tension without over-tightening, which can damage the screw or the component being fastened. Recommended tools include a torque wrench for precise application of torque.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration, corrosion, or over-tightening. Regular inspection and maintenance can help identify these issues early. If a screw appears loose, it should be re-tightened to the specified torque. Corrosion can be addressed by cleaning the affected area and applying a suitable anti-corrosive treatment. Proper maintenance practices, such as regular inspections and timely replacements, ensure the longevity and performance of the screws.

Cummins: Manufacturer Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its high-quality engines and components. Founded in 1919, Cummins has a long history of innovation and excellence. The company offers a wide range of products, including engines, filtration systems, and aftermarket parts, all designed to meet the rigorous demands of commercial trucking. Cummins is renowned for its commitment to quality, reliability, and customer satisfaction, making it a trusted name in the industry.

Hexagon Head Cap Screw 3093744 in Cummins Engines

The Hexagon Head Cap Screw 3093744, manufactured by Cummins, is a critical component in the assembly and maintenance of several Cummins engines. This part is designed to provide secure fastening in various engine applications, ensuring the integrity and functionality of the engine’s components.

Application in QST30 Engines

In the QST30 engines, the Hexagon Head Cap Screw 3093744 is utilized in several key areas. It is often employed in securing engine mounts, ensuring that the engine remains firmly attached to the vehicle chassis. Additionally, it is used in fastening various engine covers and panels, providing a reliable seal and protecting internal components from external elements.

Application in CM2350 and CM552 Engines

For the CM2350 and CM552 engines, the Hexagon Head Cap Screw 3093744 serves similar purposes. It is integral in the assembly of engine blocks, where it helps to secure the cylinder heads and other critical components. This screw ensures that all parts are tightly fastened, preventing any movement that could lead to engine failure. Furthermore, it is used in the mounting of ancillary components such as the alternator, air intake systems, and exhaust manifolds, ensuring these parts are securely in place and functioning optimally.

Grouping of Engines

The Hexagon Head Cap Screw 3093744 is a versatile component that finds application across multiple Cummins engine models. Its use in both the QST30 and CM series engines highlights its importance in maintaining the structural integrity and operational efficiency of these engines. By providing a reliable fastening solution, this screw contributes to the overall performance and longevity of the engines.

Role of Part 3093744 Hexagon Head Cap Screw in Engine Systems

The part 3093744 Hexagon Head Cap Screw is integral to the secure assembly and operation of various engine components. Its application ensures the stability and efficiency of the engine system by fastening critical parts together.

Thermostat Housing and Arrangement

In the thermostat housing arrangement, the Hexagon Head Cap Screw secures the housing to the engine block, ensuring a tight seal that prevents coolant leaks. This is essential for maintaining optimal engine temperature and efficient coolant flow.

Turbocharger and Compressor

Within the turbocharger assembly, the screw is used to fasten the compressor housing to the turbine housing. This secure connection is vital for the turbocharger’s ability to compress intake air effectively, enhancing engine performance and power output.

Camshaft and Gear

The screw plays a role in mounting the camshaft to the engine block and securing the timing gear. Proper fastening ensures precise timing and smooth operation of the valve train, which is fundamental for engine efficiency and reliability.

Refrigerant and Water Inlet Connection

In systems involving refrigerant and water inlet connections, the screw is employed to secure fittings and hoses. This ensures a leak-free connection, which is critical for the efficient transfer of fluids and maintaining system pressure.

Cooler and Engine Oil

For the engine oil cooler, the screw is used to attach the cooler to the engine block or oil lines. This secure attachment is necessary for effective heat dissipation from the engine oil, prolonging its lifespan and ensuring consistent lubrication.

Drive and Fan

In the drive and fan assembly, the screw secures the fan to the drive mechanism. This ensures that the fan operates correctly to provide adequate airflow for cooling the engine and other components.

Fuel Pump and Filter

The screw is utilized in the fuel pump and filter assembly to secure components in place. This ensures a stable fuel supply and prevents leaks, which is essential for consistent engine performance.

Lubricating Oil and Fuel Manifold

In the lubricating oil and fuel manifold systems, the screw fastens various components, ensuring a secure and leak-free connection. This is important for maintaining the integrity of the oil and fuel systems, which are vital for engine operation.

Injector and Fuel Supply Tube

The screw secures the injector to the engine block and the fuel supply tube to the injector. This ensures a stable fuel delivery system, which is essential for precise fuel injection and engine performance.

Front Engine Guard and Thermostat Housing

In the front engine guard and thermostat housing, the screw ensures that these components are firmly attached to the engine. This protects internal components and maintains the integrity of the cooling system.

Oil Pan Mounting

The screw is used in the mounting of the oil pan to the engine block. This secure attachment is necessary to prevent oil leaks and ensure the oil pan can effectively collect and store engine oil.

Aftercooler Water and Fuel Plumbing

In aftercooler water and fuel plumbing systems, the screw secures various connections and fittings. This ensures a leak-free system, which is essential for the efficient operation of the aftercooler and fuel system.

Fuel Pump and Resistor

The screw is employed in the fuel pump and resistor assembly to ensure components are securely fastened. This is important for maintaining a consistent fuel supply and protecting electrical components from corrosion.

Heat Shield

In heat shield applications, the screw secures the shield to the engine or exhaust components. This protects nearby parts from excessive heat, ensuring the longevity and safety of the engine system.

Conclusion

The 3093744 Hexagon Head Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its robust design, high-quality materials, and precise threading ensure secure fastening of critical components, contributing to the overall performance and longevity of the engine systems. Proper installation, regular maintenance, and timely replacement of this screw are essential practices to ensure the reliability and efficiency of commercial truck operations.