5258673
Twelve Point Cap Screw
Cummins®

The 5258673 Twelve-Point Cap Screw is a specialized fastener produced by Cummins, a renowned manufacturer in the commercial truck industry. This component is integral to the assembly and maintenance of various truck components, ensuring the reliability and efficiency of truck operations.

Basic Concepts of Twelve-Point Cap Screws

A twelve-point cap screw is a type of fastener characterized by its hexagonal head with twelve points, as opposed to the six points found on standard hex cap screws. This design allows for greater torque application with reduced risk of cam-out, making it suitable for high-stress applications. Twelve-point cap screws are commonly used in mechanical assemblies where precision and strength are paramount, such as in the automotive and heavy-duty truck industries ¹.

Purpose and Role in Truck Operation

The 5258673 Twelve-Point Cap Screw plays a significant role in the operation of commercial trucks by securing critical components and assemblies. It is often used in engine components, transmission systems, and chassis assemblies, where it helps maintain structural integrity and operational efficiency. Its design ensures a secure fit, reducing the likelihood of loosening under vibration and stress, which are common in truck operations ².

Key Features

The 5258673 Twelve-Point Cap Screw features a robust design with a twelve-point head that provides enhanced torque application and reduced cam-out risk. It is typically made from high-strength materials, such as alloy steel, to ensure durability and resistance to wear. The screw’s precise threading and high-quality finish contribute to its reliable performance in demanding applications ³.

Benefits

Using the 5258673 Twelve-Point Cap Screw offers several advantages. Its design enhances durability and resistance to loosening, ensuring a secure fit in high-stress environments. The twelve-point head allows for easier installation and removal, reducing the risk of damage to the fastener or surrounding components. Additionally, its high-strength material composition ensures long-lasting performance, contributing to the overall reliability of truck operations ⁴.

Installation and Usage Guidelines

To ensure optimal performance and longevity, the 5258673 Twelve-Point Cap Screw should be installed according to manufacturer guidelines. Proper torque specifications should be followed to achieve the correct clamping force without over-tightening, which could lead to damage. Using the appropriate tools, such as a torque wrench, ensures accurate installation. Regular inspection and maintenance are recommended to monitor the condition of the fastener and address any issues promptly ⁵.

Troubleshooting Common Issues

Common issues with twelve-point cap screws may include loosening, corrosion, or damage due to over-tightening. To address these problems, regular inspections should be conducted to check for signs of wear or corrosion. If loosening is detected, re-torque the fastener to the specified value. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosive treatment can help prevent further degradation. Damaged screws should be replaced to maintain the integrity of the assembly ⁶.

Maintenance Tips

Regular maintenance of the 5258673 Twelve-Point Cap Screw is crucial to prevent failures and extend its service life. This includes periodic inspections for signs of wear, corrosion, or loosening. Cleaning the fastener and surrounding areas can prevent the buildup of debris and contaminants that may contribute to corrosion. Applying a protective coating or lubricant, as recommended by the manufacturer, can further enhance the screw’s resistance to environmental factors and mechanical stress ⁷.

Cummins: Manufacturer Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance truck components, Cummins has established a strong reputation for excellence. Their dedication to research and development ensures that their products, including the 5258673 Twelve-Point Cap Screw, meet the demanding requirements of modern truck operations. Cummins’ focus on customer satisfaction and continuous improvement underscores their position as a trusted provider of truck components ⁸.

Twelve-Point Cap Screw 5258673 in Cummins Engines

The Twelve-Point Cap Screw 5258673, manufactured by Cummins, is a critical component in several of their engine models. This screw is integral to the assembly and maintenance of the engines, ensuring secure fastening of various parts.

6C8.3 Engine

In the 6C8.3 engine, the 5258673 screw is utilized in several key areas. It is often found securing components within the engine block, ensuring that parts remain tightly fastened under operational stresses. This screw’s design allows for precise torque application, which is essential for maintaining the integrity of the engine’s structure.

QSC8.3 CM850 (CM2850) and QSC9 CM2250/QSL9 CM2250 Engines

For the QSC8.3 CM850 (CM2850) and QSC9 CM2250/QSL9 CM2250 engines, the 5258673 screw serves similar purposes. It is employed in securing various engine components, including those in the cylinder head, intake manifold, and exhaust systems. The screw’s twelve-point design provides a better grip and more surface area for the wrench, which is crucial for applications requiring high torque and precision.

In these engines, the 5258673 screw is often used in conjunction with other fasteners to ensure that all parts are held together securely. This is particularly important in high-performance and heavy-duty applications where the engine is subjected to significant mechanical stress.

The use of the 5258673 screw across these engine models highlights its versatility and importance in maintaining the structural integrity and performance of Cummins engines.

Role of Part 5258673 Twelve-Point Cap Screw in Engine Systems

In the intricate assembly of engine systems, the Part 5258673 Twelve-Point Cap Screw serves as a vital fastening component, ensuring the secure attachment of various parts. Its application is particularly significant in the integration of the engine oil cooler and the lubricating oil filter head.

Engine Oil Cooler

The engine oil cooler is a component designed to regulate the temperature of the engine oil, ensuring optimal performance and longevity of the engine. The Twelve-Point Cap Screw is employed to firmly attach the oil cooler to its mounting bracket. This secure fastening is essential for maintaining the structural integrity of the oil cooler, allowing it to function effectively without the risk of detachment or misalignment, which could lead to oil leaks or inefficient cooling.

Lubricating Oil Filter Head

In the lubricating oil filter head, the Twelve-Point Cap Screw plays a key role in securing the filter to the engine block or its designated mounting point. This secure attachment is fundamental for the filter to perform its function of purifying the engine oil by trapping contaminants. A properly fastened filter head ensures that the oil filtration process is unimpeded, contributing to the overall efficiency and reliability of the engine’s lubrication system.

The use of the Twelve-Point Cap Screw in these components underscores its importance in maintaining the structural and functional integrity of engine systems. Its design allows for a firm and durable connection, which is essential for the safe and efficient operation of the engine.

Conclusion

The 5258673 Twelve-Point Cap Screw is a critical component in the assembly and maintenance of Cummins engines and truck components. Its robust design, high-strength material, and precise threading ensure reliable performance in demanding applications. Proper installation, regular maintenance, and adherence to manufacturer guidelines are essential to maximize the benefits of this Cummins part and ensure the longevity and efficiency of truck operations.