5286931
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, specifically Part #5286931 by Cummins, is a vital component in the maintenance and assembly of commercial trucks. Cummins, a well-established manufacturer in the automotive industry, produces this screw to meet the demanding requirements of heavy-duty applications. This screw is designed to provide reliable fastening solutions, ensuring the integrity and performance of truck assemblies.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange distributes load and prevents the screw from sinking into the material. In a truck’s assembly, this screw plays a role in securing various components, ensuring they remain firmly in place under operational stress ¹.

Purpose and Role in Truck Operation

This Cummins part is utilized in commercial trucks to fasten critical components such as engine mounts, transmission housings, and chassis parts. Its design ensures that these components remain securely attached, contributing to the overall stability and performance of the truck. Proper fastening is crucial for maintaining the alignment and functionality of these parts, which are subject to significant stress and vibration during operation ².

Key Features

The 5286931 features a hexagonal head that allows for easy and precise torque application. The flange at the base of the screw provides additional surface area, enhancing load distribution and preventing the screw from embedding into the material. Additionally, the screw is made from high-quality materials, ensuring durability and resistance to corrosion, which is particularly important in the harsh environments commercial trucks often operate in.

Benefits

Using this part offers several advantages. Its hexagonal head design allows for efficient and consistent torque application, reducing the risk of over-tightening or under-tightening. The flange enhances load distribution, minimizing the likelihood of the screw sinking into the material. Furthermore, the high-quality material composition ensures enhanced durability and resistance to loosening, contributing to the longevity and reliability of the fastening solution.

Installation Process

To install the 5286931, begin by ensuring the mating surfaces are clean and free of debris. Position the screw in the designated hole and use a torque wrench to apply the recommended torque specification. It is important to follow the manufacturer’s guidelines to ensure proper installation and avoid over-tightening, which can lead to damage. Regularly inspect the screw to ensure it remains securely fastened and shows no signs of wear or corrosion.

Troubleshooting and Maintenance

Common issues with this Cummins part may include loosening over time due to vibration or corrosion. Regular inspections should be conducted to check for any signs of wear, corrosion, or loosening. If loosening is detected, re-torque the screw to the manufacturer’s specified torque value. In cases of significant corrosion, replacement of the screw may be necessary to maintain the integrity of the fastening solution.

Safety Considerations

When working with the 5286931, it is important to follow safety precautions to prevent accidents. Always wear appropriate personal protective equipment, such as gloves and safety glasses, to protect against injury. Ensure that the work area is clean and free of obstacles. Use the correct tools and torque specifications to avoid over-tightening, which can lead to damage or failure of the screw. Additionally, be mindful of the potential for sharp edges on the screw, and handle it with care to prevent cuts or injuries.

Cummins Overview

Cummins is a renowned manufacturer with a long-standing reputation in the automotive industry. The company is committed to producing high-quality truck components that meet the rigorous demands of commercial applications. With a history of innovation and excellence, Cummins continues to be a trusted name in the production of reliable and durable truck parts, including the 5286931.

Cummins Engine Models Utilizing Part 5286931

B5.6 CM2670 B152B and B6.7 CM2670 B153B

In the B5.6 CM2670 B152B and B6.7 CM2670 B153B engines, the Hexagon Flange Head Cap Screw is utilized in various applications, including securing engine covers, brackets, and other structural components. Its design allows for precise torque application, which is essential for maintaining the engine’s operational efficiency and safety.

ISB5.9 CM2880 B110, ISB5.9 CM2880 B140, ISB5.9 CM2880 B149

The ISB5.9 CM2880 engines, specifically the B110, B140, and B149 variants, also incorporate the Hexagon Flange Head Cap Screw in their construction. This screw is used to fasten critical components such as the cylinder head, intake manifold, and exhaust system. The flange head design provides a larger surface area for better torque distribution, ensuring that these components remain securely fastened under varying operational conditions.

ISBE4 CM850

In the ISBE4 CM850 engine, the Hexagon Flange Head Cap Screw is employed in several key areas, including the fastening of the engine block and various auxiliary systems. Its robust design and precise threading make it an ideal choice for applications requiring high strength and durability.

QSB5.9 CM2880 B115 and QSB7 CM2880 B117

For the QSB5.9 CM2880 B115 and QSB7 CM2880 B117 engines, the Hexagon Flange Head Cap Screw is used in the assembly of the engine block, valve covers, and other structural components. The screw’s ability to withstand high torque and its resistance to loosening make it a reliable choice for these applications.

Role of Part 5286931 in Engine Systems

Oil Pan Assembly

In the oil pan, the Hexagon Flange Head Cap Screw is used to fasten the pan to the engine block. This secure attachment is essential for:

• Seal Integrity: Ensuring that the oil pan remains sealed, preventing oil leaks which could lead to engine damage.
• Structural Support: Providing the necessary support to withstand the vibrations and stresses encountered during engine operation.
• Alignment: Keeping the oil pan properly aligned with other engine components, which is vital for the efficient flow of oil throughout the lubrication system.

General Pan Applications

Beyond the oil pan, the Hexagon Flange Head Cap Screw is also employed in various other pan applications within the engine system. These include:

• Sump Pans: Used in sump lubrication systems to secure the sump pan, ensuring it remains in place and sealed.
• Accessory Pans: Fastening accessory pans that house additional components such as filters or sensors, maintaining their position and functionality.

In each of these applications, the screw’s design—featuring a hexagonal flange head—offers enhanced torque application and resistance to loosening, which is particularly beneficial in the dynamic environment of an engine. This ensures that the pans remain securely attached, contributing to the overall reliability and performance of the engine system ³.

Conclusion

The Cummins part number 5286931 is a versatile and essential component across a range of Cummins engine models, ensuring the secure fastening of critical engine parts and contributing to the overall reliability and performance of the engines. Its design and features make it a reliable choice for various applications within engine systems, from oil pans to accessory pans, ensuring structural integrity and operational efficiency.