4085705
Hexagon Head Cap Screw
Cummins®

The Cummins Hexagon Head Cap Screw, part number 4085705, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a range of components that ensure the reliability and efficiency of truck operations. This part is integral to the assembly and maintenance of various truck components, providing a secure and durable fastening solution.

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. These screws are commonly used in applications requiring a high degree of torque and resistance to loosening. Mechanically, the hexagonal head design distributes force evenly, reducing the risk of cam-out and ensuring a secure fit ¹.

Purpose of the 4085705 Hexagon Head Cap Screw in Truck Operation

This Cummins part 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, such as in engine components, chassis assemblies, and other critical areas. Its design ensures that parts remain securely fastened under the demanding conditions encountered in commercial truck operations.

Key Features of the 4085705 Hexagon Head Cap Screw

The 4085705 is designed with several key features that enhance its performance and reliability. It is constructed from high-quality materials, typically a grade of steel that offers excellent strength and durability. The screw features a specific thread type that provides a strong grip and resistance to loosening. The hexagonal head is meticulously designed to allow for easy installation and removal using standard tools.

Benefits of Using the 4085705 Hexagon Head Cap Screw

This part offers several advantages. Its durable material composition ensures longevity even under harsh operating conditions. The design of the screw provides resistance to loosening, which is crucial for maintaining the integrity of truck components. Additionally, the hexagonal head allows for straightforward installation and removal, making it a practical choice for both initial assembly and maintenance tasks.

Installation Guidelines

Proper installation of this part involves several steps to ensure a secure and lasting fit. Begin by cleaning the mating surfaces to remove any debris or contaminants. Use a torque wrench to install the screw, adhering to the specified torque settings to avoid over-tightening or under-tightening. Recommended tools include a socket wrench compatible with the hexagonal head and a torque wrench for precise application of torque.

Maintenance and Troubleshooting

To ensure the longevity and performance of the 4085705, regular maintenance is advisable. Inspect the screw periodically for signs of wear or damage. If corrosion is detected, clean the affected area and apply a suitable anti-corrosive treatment. Common issues may include loosening due to vibration; in such cases, re-torque the screw to the manufacturer’s specifications. If the screw shows significant wear, replacement may be necessary to maintain the integrity of the fastened components.

Cummins: Manufacturer 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 reliable and high-performance components. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to meet the rigorous demands of commercial trucking. Cummins’ commitment to quality and innovation ensures that their components, like the 4085705, deliver exceptional performance and durability.

Cummins Hexagon Head Cap Screw 4085705 in Engine Applications

The Cummins Hexagon Head Cap Screw, part number 4085705, is a critical component in various engine assemblies. This part is designed to provide secure fastening in high-stress environments, ensuring the integrity and reliability of the engine’s components.

K19 Engines

In the K19 engine series, the 4085705 screw is utilized in several key areas. It is often found securing various engine covers and housings, ensuring that these parts remain tightly fastened under operational stresses. This screw’s robust design helps maintain the structural integrity of the engine, preventing any potential loosening that could lead to operational failures.

NH/NT 855 Engines

For the NH/NT 855 engines, the 4085705 Hexagon Head Cap Screw plays a vital role in securing multiple components. It is commonly used in the assembly of engine blocks, cylinder heads, and other critical parts. The screw’s high-strength properties are essential in these applications, where it must withstand significant mechanical forces and thermal stresses. The precise fit and durability of this screw contribute to the overall performance and longevity of the NH/NT 855 engines.

Grouping of Engines

When considering the application of the 4085705 screw across different engine models, it is evident that this part is integral to the assembly and maintenance of both the K19 and NH/NT 855 engines. Its use in securing various engine components underscores its importance in ensuring the engines’ operational efficiency and reliability. The screw’s design and material properties make it suitable for the demanding conditions encountered in these engines, providing a dependable fastening solution.

Role of Part 4085705 Hexagon Head Cap Screw in Engine Systems

The 4085705 Hexagon Head Cap Screw is integral to the assembly and maintenance of various engine components, ensuring secure fastening and reliable operation. Here’s how it interfaces with specific engine systems:

Lubricating Oil Filter

In the lubricating oil filter system, the 4085705 Hexagon Head Cap Screw is often used to secure the filter housing to the engine block or filter mounting bracket. This ensures that the filter remains firmly in place, preventing any leaks or dislodgement that could compromise the filtration efficiency and lead to contaminated oil circulating through the engine ².

Radiator Mounting

For radiator mounting, the 4085705 Hexagon Head Cap Screw plays a key role in attaching the radiator to the engine bay framework. This secure attachment is essential for maintaining the radiator’s position and ensuring efficient coolant flow. Proper mounting prevents vibrations from dislodging the radiator, which could otherwise lead to overheating issues and reduced cooling efficiency.

Vibration Damper

In the context of the vibration damper, the 4085705 Hexagon Head Cap Screw is utilized to fasten the damper to the crankshaft or other rotating components. This secure connection is vital for the damper to effectively absorb and reduce vibrations generated during engine operation. A well-fastened vibration damper ensures smoother engine performance and reduces wear on connected components.

Conclusion

Overall, the 4085705 Hexagon Head Cap Screw contributes to the integrity and efficiency of these engine systems by providing robust and reliable fastening solutions. Its use in critical applications across various engine models underscores its importance in maintaining the operational reliability and performance of commercial trucks.