4007563
Twelve Point Cap Screw
Cummins®

The 4007563 Twelve Point Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial truck maintenance and operation. Cummins, a well-established name in the commercial truck industry, produces this component to meet the rigorous demands of heavy-duty applications. This screw plays a role in ensuring the reliability and efficiency of truck assemblies.

Basic Concepts of Twelve Point Cap Screws

A twelve point cap screw is a type of fastener that features twelve sides instead of the six found on standard hex cap screws. This design allows for a tighter fit in the driving socket, which can reduce the risk of cam-out—a situation where the driving tool slips out of the fastener head ¹. Twelve point cap screws are commonly used in mechanical assemblies where precision and security are paramount.

Function and Role in Truck Operation

The 4007563 Twelve Point Cap Screw is specifically designed to secure various components within commercial trucks. Its primary role is to ensure that parts remain firmly in place, contributing to the overall structural integrity of the vehicle. By providing a secure fastening solution, this screw helps maintain the alignment and functionality of critical truck components.

Key Features

The 4007563 Twelve Point Cap Screw boasts several key features that enhance its performance and durability. Its twelve-sided design allows for more precise torque application compared to standard hex cap screws. The screw is crafted from high-quality materials to withstand the stresses and vibrations encountered in heavy-duty truck environments. Additionally, its design includes features that promote easier installation and removal, reducing the likelihood of damage to the fastener or surrounding components.

Benefits of Using Twelve Point Cap Screws

Twelve point cap screws offer several advantages in fastening applications. The increased number of sides provides a more secure fit in driving tools, which can lead to more consistent torque application. This design also reduces the risk of cam-out, ensuring that the fastener remains engaged during tightening or loosening. Furthermore, the enhanced security provided by twelve point cap screws can contribute to the longevity and reliability of mechanical assemblies ².

Installation and Usage Guidelines

Proper installation of the 4007563 Twelve Point Cap Screw is vital to ensure optimal performance. It is recommended to use the appropriate torque specifications provided by Cummins to avoid over-tightening or under-tightening. Best practices include using the correct socket size to engage all twelve sides of the screw head and ensuring that the driving tool is properly aligned to prevent damage. Regular inspection of the fastener during maintenance checks can help identify any signs of wear or loosening.

Troubleshooting Common Issues

Common issues with twelve point cap screws may include stripping or loosening over time. If a screw becomes stripped, it may need to be replaced to maintain the integrity of the assembly. Loosening can often be addressed by re-torquing the fastener to the manufacturer’s specifications. In some cases, applying a thread locker compound can help prevent future loosening.

Maintenance Recommendations

Routine maintenance of twelve point cap screws involves regular inspection for signs of wear, corrosion, or damage. Cleaning the fasteners and surrounding areas can prevent the buildup of debris that may affect performance. If a screw shows significant wear or damage, it should be replaced to ensure the continued reliability of the assembly. Following Cummins’ recommended maintenance intervals can help prolong the life of these fasteners.

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 strong reputation in the commercial truck industry for producing high-quality, reliable components. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of heavy-duty applications.

Twelve Point Cap Screw 4007563 in Cummins Engines

The Twelve Point Cap Screw 4007563, manufactured by Cummins, is a critical component in the assembly and maintenance of several Cummins engine models. This part is integral to the structural integrity and operational efficiency of the engines, ensuring that various parts are securely fastened and aligned.

Application in QSK45 CM500 and QSK78 CM500 Engines

In the QSK45 CM500 and QSK78 CM500 engines, the Twelve Point Cap Screw 4007563 plays a pivotal role in maintaining the alignment and stability of engine components. These engines, known for their robust performance and reliability, require precise fastening to ensure that all parts function correctly under high stress and operational conditions.

The cap screw is used in various applications within these engines, including:

• Securing Engine Blocks: Ensuring that the engine block remains intact and aligned, which is crucial for the engine’s overall performance.
• Fastening Accessory Components: Attaching various engine accessories and support structures, which need to be firmly in place to operate effectively.
• Mounting Points: Providing a reliable mounting point for different parts, contributing to the engine’s structural integrity.

The use of a twelve-point design in the cap screw allows for better torque application and reduced stripping, which is essential in the demanding environment of heavy-duty engines. This design feature ensures that the screw can withstand the high torque levels and operational stresses encountered in these engines.

By using the Twelve Point Cap Screw 4007563, Cummins ensures that the QSK45 CM500 and QSK78 CM500 engines maintain their operational efficiency and reliability, providing the performance that these models are known for.

Role of Part 4007563 Twelve Point Cap Screw in Engine Systems

The part 4007563 Twelve Point Cap Screw is integral to the assembly and maintenance of several key components within engine systems.

In the Cylinder Block, this cap screw is utilized to secure various components and accessories. It ensures that parts such as the cylinder head, oil pan, and other auxiliary components remain firmly attached, providing stability and preventing any unwanted movement during engine operation.

Within the Engine Crankshaft assembly, the Twelve Point Cap Screw plays a significant role in fastening the crankshaft to the cylinder block. This secure attachment is vital for maintaining the crankshaft’s alignment and ensuring smooth operation. Additionally, it is used in the attachment of crankshaft pulleys and other accessories, contributing to the overall integrity of the crankshaft system.

In the Engine Top Level Assembly Crankshaft, the Twelve Point Cap Screw is employed to fasten the crankshaft to the engine’s top-end components. This includes securing the crankshaft to the cylinder head and other upper engine components, ensuring that the entire assembly operates in unison. The screw’s design allows for precise torque application, which is essential for maintaining the correct tension and alignment within the engine’s top-end.

Overall, the part 4007563 Twelve Point Cap Screw is a fundamental component in ensuring the secure and efficient operation of these engine systems.

Conclusion

The 4007563 Twelve Point Cap Screw is a vital component in the maintenance and operation of commercial trucks and Cummins engines. Its unique design and high-quality materials ensure reliable performance in heavy-duty applications. Proper installation, regular maintenance, and adherence to manufacturer guidelines are essential to maximize the lifespan and efficiency of this Cummins part.