3102651
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, part number 3102651, is a component manufactured by Cummins, a prominent entity in the automotive and heavy-duty truck industry. This screw is crucial for the maintenance and operation of commercial trucks, offering a dependable fastening solution that aligns with the rigorous demands of truck components.

Basic Concepts

A Hexagon Flange Head Cap Screw is characterized by its hexagonal head and a flange beneath the head. The hexagonal head enables efficient torque application using standard tools, while the flange distributes load and prevents the screw from sinking into the material. In truck components, this screw is designed to secure various parts, ensuring they remain firmly in place under operational stress ¹.

Purpose and Role in Truck Operation

The 3102651 Hexagon Flange Head Cap Screw is vital for the operation and maintenance of commercial trucks. It is used in areas requiring secure fastening to withstand vibrations and dynamic loads typical in truck operations. Its application spans across various truck components, contributing to the overall safety and efficiency of the vehicle ².

Key Features

This Cummins part is distinguished by several key features. Its hexagonal head design facilitates easy and precise tightening and loosening with common tools. The flange provides additional surface area, enhancing the screw’s load distribution capabilities and preventing it from being pulled through the material. Additionally, the material properties of this screw, typically a high-strength alloy, contribute to its durability and resistance to corrosion, making it suitable for the harsh environments encountered by commercial trucks ³.

Benefits

Utilizing the 3102651 Hexagon Flange Head Cap Screw offers several advantages. It provides enhanced fastening security, ensuring that components remain securely attached under operational conditions. Its design resists vibration, which is common in truck operations, reducing the likelihood of loosening over time. Furthermore, the screw’s design allows for ease of installation and removal, facilitating maintenance procedures.

Installation and Usage Guidelines

To ensure optimal performance and longevity of the 3102651 Hexagon Flange Head Cap Screw, it is important to follow proper installation guidelines. Begin by selecting the appropriate size and grade of screw for the application. Use a torque wrench to apply the recommended torque specification, ensuring the screw is tightened to the manufacturer’s specifications without over-tightening. Regularly inspect the screw and surrounding area for signs of wear or damage, and replace as necessary to maintain secure fastening ⁴.

Troubleshooting and Maintenance

Common issues with the 3102651 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion. To address these issues, ensure the screw is properly torqued during installation and consider applying a thread locker to enhance resistance to vibration. Regular maintenance checks should be conducted to identify any signs of corrosion or damage. In cases where corrosion is present, cleaning the affected area and reapplying a corrosion-resistant coating can help prolong the screw’s service life.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history rooted in diesel engine technology, Cummins has expanded its expertise to include a wide range of power solutions. The company is renowned for its commitment to quality, innovation, and customer satisfaction, making it a trusted name in the automotive and heavy-duty truck industries.

Cummins Engine Compatibility with Part 3102651

The Hexagon Flange Head Cap Screw, part number 3102651, manufactured by Cummins, is a versatile component that fits into a variety of Cummins engines. This screw is designed to secure various parts within the engine assembly, ensuring structural integrity and operational efficiency.

ISB Series Engines

The ISB series engines, known for their durability and performance, include several models that utilize the 3102651 screw. These engines are:

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB5.9G CM2180
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• ISBE CM2150
• ISBE CM800
• ISBE4 CM850
• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250

These engines are widely used in various applications, from construction equipment to heavy-duty trucks, and the 3102651 screw plays a crucial role in maintaining their operational integrity.

Other Cummins Engines

In addition to the ISB series, the Hexagon Flange Head Cap Screw is also compatible with several other Cummins engines, including:

• 15N CM2380 M104B
• 4B3.9
• 6B5.9
• 6C8.3
• B3.3
• B5.9 G
• B6.7 CM2670 B153B
• B6.7 G CMOH6.0 B125
• B6.7S
• F2.8 CM2620 F135B

These engines, while differing in specifications and applications, all benefit from the reliable fastening provided by the 3102651 screw. Whether used in agricultural machinery, marine applications, or industrial equipment, this screw ensures that critical components remain securely fastened, contributing to the overall performance and longevity of the engine.

Hexagon Flange Head Cap Screw (Part 3102651) Component Usage

The Hexagon Flange Head Cap Screw, identified by part number 3102651, is integral to the assembly and securement of various engine components. Its design allows for efficient torque transfer and secure fastening, which is essential for the reliable operation of engine systems.

Base Rail

In the context of the base rail, the Hexagon Flange Head Cap Screw is used to firmly attach the rail to the engine block. This ensures the structural integrity of the base rail, which supports other components and contributes to the overall stability of the engine.

Camshaft and Camshaft Cover

For the camshaft and camshaft cover, these screws play a role in securing the camshaft in place within the cylinder head and fastening the cover to protect the camshaft and its associated components. Proper fastening is vital for maintaining the precise alignment and operation of the camshaft.

Camshaft Mounting and Cylinder Head

When it comes to camshaft mounting and the cylinder head, the Hexagon Flange Head Cap Screw is employed to ensure that the camshaft is correctly positioned and that the cylinder head is tightly sealed against the engine block. This is important for the efficient operation of the valve train and the prevention of coolant or oil leaks.

Engine Cooling Fan Shroud and System

In the engine cooling fan shroud and cooling system, these screws are used to secure the shroud to the engine and to mount the cooling fan. This ensures that the cooling system operates efficiently by maintaining the correct airflow over the radiator and other cooling components.

Fan Drive Mounting

For fan drive mounting, the Hexagon Flange Head Cap Screw is utilized to attach the fan drive to the engine. This is essential for the proper functioning of the cooling fan, which helps regulate engine temperature.

Fuel Control Module and Supply Plumbing

In the fuel control module and fuel supply plumbing, these screws secure the module to the engine and fasten components of the fuel supply system. This ensures the reliable delivery of fuel to the engine and the secure mounting of fuel system components.

Idler Gear and Injector

The idler gear and injector benefit from the use of these screws for secure attachment to the engine. This is important for the smooth operation of the timing system and the precise delivery of fuel to the combustion chambers.

Injector Repair Kit and ISM Burn-Only Val/Mtg

In an injector repair kit and ISM burn-only val/mtg setup, the Hexagon Flange Head Cap Screw is used to reassemble and secure components after repair or maintenance, ensuring that the injector functions correctly and that the valve is properly mounted.

Mounting Plate and Oil Pan

For the mounting plate and oil pan, these screws are critical for securing the plate to the engine and attaching the oil pan. This ensures the structural integrity of the engine and the containment of engine oil.

Oil Replenishing System and Performance Parts

In the oil replenishing system and various performance parts, the Hexagon Flange Head Cap Screw is used to secure components that are essential for maintaining oil levels and enhancing engine performance.

Rear Gear Housing and Refrigerant Compressor

The rear gear housing and refrigerant compressor benefit from these screws for secure attachment to the engine. This is important for the operation of the gear housing and the efficient functioning of the refrigerant compressor in engine cooling systems.

Refrigerant Compressor Mounting and Rocker Lever

For refrigerant compressor mounting and the rocker lever, the Hexagon Flange Head Cap Screw ensures that these components are firmly attached to the engine, which is essential for their operation and the overall efficiency of the engine.

Single Head Gasket Kit and Turbocharger Arrangement

In a single head gasket kit and turbocharger arrangement, these screws are used to secure the head gasket and turbocharger components. This ensures a proper seal between the cylinder head and engine block and the secure mounting of the turbocharger.

Vibration Isolator

Finally, in the vibration isolator, the Hexagon Flange Head Cap Screw is used to attach the isolator to the engine, which helps reduce engine vibrations and contributes to a smoother operation of the engine.

Conclusion

The 3102651 Hexagon Flange Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and various Cummins engines. Its design and features ensure secure fastening, resistance to vibration, and ease of installation and removal, contributing to the overall safety, efficiency, and longevity of the vehicle and engine components.