4937261
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, specifically Part #4937261 by Cummins, is a vital component in the realm of commercial trucks. Cummins, a renowned manufacturer in the industry, produces this screw which is integral to the fastening systems used in various truck components. This overview will delve into the design, functionality, and significance of the Hexagon Flange Head Cap Screw in the context of commercial truck operations.

Basic Concepts of Hexagon Flange Head Cap Screw

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange beneath the head. This design allows for efficient tightening using a wrench or socket, while the flange provides a larger bearing surface that helps distribute the load and prevent the screw from pulling through the material. In fastening applications, these screws are used to securely join components, ensuring structural integrity and reliability ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is utilized in various truck components where secure and durable fastening is required. Applications include, but are not limited to, engine mounts, chassis components, and other critical assemblies where vibration resistance and load distribution are paramount ².

Key Features

The 4937261 boasts several key features that contribute to its effectiveness and durability. Its hexagonal head design allows for straightforward installation and removal using standard tools. The flange beneath the head provides an increased bearing surface, which helps in distributing the load more evenly and reducing the risk of the screw pulling through the material. Additionally, the screw is crafted from high-quality materials, ensuring it can withstand the rigors of commercial truck environments ³.

Benefits

Using the 4937261 in truck maintenance and assembly offers several benefits. The design enhances security by providing a robust fastening solution that resists loosening due to vibrations, a common issue in heavy-duty applications. The ease of installation, thanks to the hexagonal head, allows for quick and efficient assembly. Furthermore, the flange feature contributes to the screw’s durability by distributing loads more effectively ⁴.

Installation Guidelines

Proper installation of the 4937261 is crucial for ensuring secure fastening. Begin by aligning the screw with the designated hole in the component. Use a wrench or socket to tighten the screw, ensuring it is drawn up to the specified torque. It is important to follow the torque specifications provided by Cummins to avoid over-tightening, which can damage the screw or the component, and under-tightening, which can lead to insecure fastening ⁵.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibrations and corrosion. To address these, regular inspections should be conducted to ensure screws remain tight and free from corrosion. If a screw is found to be loose, it should be re-tightened to the specified torque. In cases of corrosion, the affected screw should be replaced to maintain the integrity of the fastening. Proper maintenance, including regular checks and timely replacements, will help prolong the lifespan of the screws and ensure ongoing performance ⁶.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history and a broad product range, Cummins has established a strong reputation in the commercial truck industry. The company is known for its commitment to quality and innovation, making it a trusted source for truck components. Cummins’ expertise in engine and component manufacturing ensures that their products, including the 4937261, meet the high standards required for commercial truck applications ⁷.

Hexagon Flange Head Cap Screw 4937261 in Cummins Engines

The Cummins part number 4937261, a Hexagon Flange Head Cap Screw, is a critical component in various Cummins engine models. This part is integral to the assembly and maintenance of these engines, ensuring secure fastening and proper operation.

B Series Engines

The B4.5 CM2350 B129B and B6.7 CM2350 B135B engines utilize the 4937261 screw for securing various components within the engine assembly. This screw is essential for maintaining the integrity of the engine’s structure and ensuring that parts remain tightly fastened during operation.

CM2670 Series Engines

The B6.7 CM2670 B153B engine also incorporates the 4937261 screw. This engine, like its counterparts, relies on this screw to secure critical components, ensuring the engine operates smoothly and efficiently.

F Series Engines

The F3.8 CM2350 F120B and F3.8 CM2620 F137B engines use the 4937261 screw for fastening various parts. This screw is crucial for maintaining the structural integrity of these engines, ensuring that all components are securely fastened.

The F4.5 CM2620 F139B engine also employs the 4937261 screw. This engine, similar to others in the series, depends on this screw to keep components tightly fastened, contributing to the engine’s overall performance and reliability.

ISB Series Engines

The ISB CM2150, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN, ISB4.5 CM2350 B104, and ISB6.7 CM2250 engines all utilize the 4937261 screw. This screw is essential for securing various components within these engines, ensuring that the engines maintain their structural integrity and operate efficiently.

ISBE Series Engines

The ISBE CM2150, ISBE CM800, and ISBE4 CM850 engines also incorporate the 4937261 screw. This screw is vital for maintaining the structural integrity of these engines, ensuring that all components are securely fastened and the engines operate reliably.

Hexagon Flange Head Cap Screw in Engine Systems

The part 4937261 is integral to the assembly and maintenance of various engine systems. Its design allows for secure fastening, which is essential for the structural integrity and performance of engine components.

Rear Engine Support

In the context of the rear engine support, the Hexagon Flange Head Cap Screw plays a significant role. This screw is used to fasten the rear engine support to the chassis, ensuring that the engine remains securely in place. The flange head provides additional surface area for distribution of clamping force, reducing the risk of stripping or damage to the fastened material. This is particularly important in high-vibration environments typical of engine compartments.

The screw’s hexagonal head allows for efficient torque application using common hand tools, facilitating easier installation and removal during maintenance procedures. The cap design of the screw helps in protecting the fastener from contaminants and corrosion, prolonging its service life and maintaining the reliability of the rear engine support.

Conclusion

The 4937261 Hexagon Flange Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its design, featuring a hexagonal head and a flange, ensures secure fastening and load distribution, which is essential for the structural integrity and performance of various truck and engine components. Proper installation, regular maintenance, and timely replacement of this screw are vital for ensuring the longevity and reliability of the fastening systems in commercial trucks.