205393
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, identified by part number 205393, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This part plays a significant role in the assembly and maintenance of commercial trucks, ensuring the integrity and functionality of various mechanical systems.

Basic Concepts of Twelve Point Cap Screws

A Twelve Point Cap Screw is a type of fastener characterized by its twelve-sided head, which provides a larger contact area compared to traditional hex-head screws. This design allows for greater torque application with reduced risk of cam-out, making it suitable for high-stress applications. In mechanical assemblies, these screws are used to secure components that require a strong, durable connection ¹.

Purpose of the 205393 Twelve Point Cap Screw in Truck Operations

This Cummins part is integral to the operation and maintenance of commercial trucks. It is employed in applications where high tensile strength and resistance to loosening are required. This includes fastening engine components, securing chassis parts, and attaching body panels. Its role in these applications ensures that critical components remain securely in place, contributing to the overall reliability and safety of the vehicle.

Key Features of the 205393 Twelve Point Cap Screw

This part is distinguished by several key features. Its twelve-sided head design allows for more torque to be applied without the risk of rounding off the screw head. The screw is typically made from high-strength materials, such as alloy steel, to ensure durability under load. Additionally, it may feature a corrosion-resistant coating to enhance its longevity in various operating environments ².

Benefits of Using the 205393 Twelve Point Cap Screw

Utilizing this part offers several advantages. Its design allows for increased torque application, reducing the likelihood of screw head damage during installation. The material composition ensures high durability and resistance to loosening, even in high-stress environments. Furthermore, the ease of use with standard tools makes it a practical choice for both initial installation and maintenance procedures.

Installation and Usage Guidelines

Proper installation of this part involves several steps to ensure a secure fit. Begin by cleaning the mating surfaces to remove any debris or corrosion. Use a torque wrench to apply the specified torque, ensuring the screw is tightened to the manufacturer’s recommendations. It is also advisable to apply a thread locker to prevent loosening over time. Regular inspection after installation can help identify any issues early on.

Troubleshooting Common Issues

Common issues with Twelve Point Cap Screws include loosening over time, corrosion, and damage to the screw head. Loosening can often be addressed by re-torquing the screw to the specified value or by applying a thread locker. Corrosion may require cleaning the affected area and reapplying a protective coating. Damage to the screw head can be prevented by using the correct tools and avoiding excessive force during installation.

Maintenance Tips

To prolong the life of the 205393 Twelve Point Cap Screw, regular maintenance is recommended. This includes periodic inspection for signs of corrosion, loosening, or damage. Cleaning the screw and its mating surfaces can prevent buildup that may lead to failure. Replacement should be considered if significant wear or damage is observed, ensuring the continued reliability of the assembly.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. Their product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial vehicle operations.

Twelve Point Cap Screw 205393 in Cummins Engines

The Twelve Point Cap Screw 205393, manufactured by Cummins, is a critical component used in various Cummins engine models. This screw is integral to the assembly and maintenance of these engines, ensuring secure fastening and stability of different parts.

GTA38 G CMEICS G116C

In the GTA38 G CMEICS G116C engine, the Twelve Point Cap Screw 205393 is utilized in several key areas. It is often found securing the engine block, ensuring that all components are tightly fastened and properly aligned. This screw’s design allows for precise torque application, which is crucial for maintaining the integrity of the engine’s structure.

K19, K38, K50

The K19, K38, and K50 engines also benefit from the use of the Twelve Point Cap Screw 205393. In these models, the screw is typically employed in the assembly of the cylinder head, turbo housing, and other critical engine components. Its twelve-point design provides a better grip and more surface contact, which helps in distributing the load evenly and preventing stripping.

KTA19GC, KTA19GC CM558

For the KTA19GC and KTA19GC CM558 engines, the Twelve Point Cap Screw 205393 is used in the mounting of various engine accessories and components. These include the alternator, water pump, and other peripheral parts that require a reliable fastening method. The screw’s robust construction ensures that these components remain securely in place under the operational stresses of the engine.

KTA38GC CM558, QSK19 CM2350 K105, QSK19 CM2350 K114, QSK19 CM2350 K144G, QSK19 CM850 MCRS

In the KTA38GC CM558, QSK19 CM2350 K105, QSK19 CM2350 K114, QSK19 CM2350 K144G, and QSK19 CM850 MCRS engines, the Twelve Point Cap Screw 205393 is integral to the assembly of the engine’s internal and external components. It is used in securing the engine block, cylinder liners, and various other parts that require a high level of precision and strength. The screw’s design allows for easy installation and removal, which is essential during maintenance and repair operations.

QSK38 CM2150 MCRS, QSK38 CM850 MCRS

The QSK38 CM2150 MCRS and QSK38 CM850 MCRS engines also incorporate the Twelve Point Cap Screw 205393 in their construction. This screw is used in the assembly of the engine’s head and block, ensuring that all parts are tightly fastened and properly aligned. Its use in these engines highlights its versatility and reliability in high-performance applications.

QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108

In the QSK50 CM2150 K107, QSK50 CM2150 MCRS, and QSK50 CM2350 K108 engines, the Twelve Point Cap Screw 205393 is employed in the mounting of various engine components, including the turbocharger and exhaust manifold. The screw’s design provides a secure fastening method that can withstand the high stresses and temperatures encountered in these engines. Its use ensures that all parts remain securely in place, contributing to the overall reliability and performance of the engine.

Role of Part 205393 Twelve Point Cap Screw in Engine Systems

This part is integral to the assembly and securement of various components within engine systems. Its application ensures the stability and integrity of the following components:

• Adapter: Secures the adapter to ensure proper alignment and connection between different engine parts.
• Front Drive: Plays a role in fastening the front drive components, contributing to the efficient transfer of power.
• Aftercooler Mounting Support: Essential for the secure attachment of the aftercooler, which is vital for cooling the compressed air from the turbocharger.
• Arrangement: Used in the precise arrangement of components to maintain the structural integrity of the engine.
• Turbocharger: Aids in the secure mounting of the turbocharger, ensuring it operates within specified parameters.
• Base Part: Critical for fastening the base part, which serves as the foundation for other components.
• Camshaft: Involved in the secure attachment of the camshaft, ensuring smooth operation of the valve train.
• EBM-Location: Utilized in the securement of the EBM (Electronic Brake Module) location, ensuring reliable brake system performance.
• Exhaust System Kit: Helps in the secure assembly of the exhaust system kit, maintaining the efficiency of exhaust flow.
• Flywheel Housing Support: Essential for the secure support of the flywheel housing, which is critical for the operation of the flywheel.
• Front PTO Adapter: Used in the secure attachment of the front PTO (Power Take-Off) adapter, ensuring efficient power transfer.
• Front PTO Stubshaft: Involved in the secure mounting of the front PTO stubshaft, which is essential for the operation of the PTO system.
• Intake Manifold: Plays a role in the secure attachment of the intake manifold, ensuring efficient air intake.
• Lever: Used in the secure attachment of various levers, ensuring their proper function within the engine system.
• Rocker: Involved in the secure mounting of rockers, which are essential for the operation of the valve train.
• Mounting Aftercooler: Critical for the secure attachment of the aftercooler, ensuring efficient cooling of compressed air.
• Rocker Arm Housing Mounting: Used in the secure attachment of the rocker arm housing, ensuring the stability of the rocker arm system.
• Rocker Arm Mounting Housing: Plays a role in the secure mounting of the rocker arm housing, which is vital for the operation of the valve train.
• Rocker Lever: Involved in the secure attachment of the rocker lever, ensuring its proper function within the engine system.
• Rocker Lever Assembly: Used in the secure assembly of the rocker lever, which is essential for the operation of the valve train.
• Rocker Lever Mounting Housing: Critical for the secure attachment of the rocker lever housing, ensuring the stability of the rocker lever system.
• Rocker Mounting Lever: Involved in the secure mounting of the rocker mounting lever, which is essential for the operation of the valve train.
• Shaft, Front Stub: Used in the secure attachment of the front stub shaft, ensuring efficient power transfer.
• Vibration Damper: Plays a role in the secure attachment of the vibration damper, which is vital for reducing engine vibrations.
• Vibration Damper Magtronic: Involved in the secure mounting of the vibration damper magtronic, ensuring efficient vibration damping.

Conclusion

The 205393 Twelve Point Cap Screw is a critical component in the assembly and maintenance of commercial trucks and Cummins engines. Its unique design, high-strength material, and corrosion-resistant properties make it suitable for high-stress applications. Proper installation, regular maintenance, and timely replacement are essential to ensure the continued reliability and performance of the vehicle.