3100066
Hexagon Flange Head Cap Screw
Cummins®

The Hex Flanged Head Cap Screw (Part #3100066) manufactured by Cummins is a specialized fastener designed for use in commercial truck applications. This screw ensures the structural integrity and functionality of various truck components. Its design and construction are tailored to meet the demanding requirements of heavy-duty truck environments, providing reliable fastening solutions for critical parts ².

Basic Concepts

Hex Flanged Head Cap Screws are characterized by their hexagonal head and flanged design. The hexagonal head allows for efficient tightening and loosening using standard tools, while the flange provides additional stability by distributing the load and preventing the screw from pulling through the material. These screws are commonly used in the automotive industry for applications requiring secure and durable fastening, such as attaching brackets, panels, and other components ¹.

Purpose and Role in Truck Operation

This Cummins part serves a vital role in the operation of commercial trucks by securing various components and maintaining structural integrity. It is used to fasten parts that are subject to vibration, stress, and environmental factors. By providing a strong and stable connection, this screw helps ensure the reliable performance of truck systems and components, contributing to overall safety and efficiency ².

Key Features

The 3100066 features a hexagonal head that allows for easy and precise tightening using standard tools. The flanged design enhances stability by distributing the load and preventing the screw from pulling through the material. Constructed from high-quality materials, this screw offers excellent resistance to corrosion and wear, ensuring durability in demanding truck environments ².

Benefits

This part offers several benefits, including enhanced fastening strength, resistance to loosening, and durability. Its design provides a secure connection that can withstand vibration and stress, reducing the risk of component failure. The high-quality materials used in its construction ensure long-lasting performance, even in harsh conditions ².

Installation Guidelines

Proper installation of the 3100066 is important to ensure secure and reliable fastening. Follow these steps for installation:

1. Clean the installation area to remove any dirt, grease, or debris.
2. Align the screw with the designated hole and insert it until the flange is flush with the surface.
3. Use a torque wrench to tighten the screw to the specified torque value, ensuring even and consistent tightening.
4. Verify that the screw is securely fastened and that the flange is in proper contact with the surface ².

Troubleshooting and Maintenance

Common issues with Hex Flanged Head Cap Screws include loosening, corrosion, and damage. To address these problems:

• Regularly inspect screws for signs of loosening or corrosion and tighten or replace them as needed.
• Protect screws from environmental factors by applying a corrosion-resistant coating or sealant.
• Replace damaged screws promptly to maintain the integrity of the fastened components ².

Cummins Overview

Cummins Inc. is a leading manufacturer of diesel and natural gas engines, as well as related technologies. With a strong reputation in the automotive industry, Cummins is committed to producing high-quality components for commercial vehicles. Their Hex Flanged Head Cap Screw (Part #3100066) is a testament to their dedication to durability, performance, and reliability in heavy-duty applications ².

Applications in Cummins Engines

G855 and NH/NT 855 Engines

In the G855 and NH/NT 855 engines, the 3100066 is used to secure various components, including cylinder heads and engine blocks. Its robust design ensures that these parts remain tightly fastened under the extreme conditions these engines operate ².

GTA38 G CMEICS G116C and QSK50 CM2350 K108 Engines

For the GTA38 G CMEICS G116C and QSK50 CM2350 K108 engines, the 3100066 is integral to the assembly of critical engine parts. Its flanged head provides a larger surface area for torque application, which is essential for maintaining the structural integrity of these high-performance engines ².

N14 CELECT PLUS and N14 MECHANICAL Engines

In the N14 CELECT PLUS and N14 MECHANICAL engines, the 3100066 is utilized to fasten components that require precise alignment and secure fastening. This includes securing various engine covers and housings, ensuring that the engine operates smoothly and efficiently ².

X12 CM2350 X119B Engine

The X12 CM2350 X119B engine also relies on the 3100066 for fastening critical components. Its design allows for easy installation and removal, which is crucial during maintenance and repair operations. The screw’s ability to withstand high torque and stress makes it an ideal choice for this engine model ².

Role of 3100066 in Engine Systems

The 3100066 is integral to the assembly and functionality of various engine components. Its design allows for secure fastening, which is essential for maintaining the structural integrity and operational efficiency of the engine system ².

Bracket and Shipping

In the context of brackets used for shipping, the Hex Flanged Head Cap Screw ensures that components are securely fastened during transit. This prevents damage and ensures that parts arrive in optimal condition for installation ².

Breather and Crankcase

When installed in the breather system connected to the crankcase, this screw plays a role in maintaining the seal and structural stability of the breather housing. It helps in managing pressure and ensuring that the breather functions correctly to release excess pressure from the crankcase ².

Air Cleaner and Air Compressor

For air cleaner assemblies and air compressors, the screw is used to secure components such as the air cleaner housing and compressor mounts. This ensures that these parts remain firmly in place, allowing for efficient air filtration and compression ².

Air Connection and Exhaust Outlet

In air connection points and exhaust outlets, the screw helps in securing gaskets and flanges. This is important for maintaining airtight seals, which are vital for the proper functioning of the air intake and exhaust systems ².

Drive and Fan Components

The screw is extensively used in various fan components, including the fan arrangement, fan brace kit, fan bracket, and fan hub. It secures these parts to ensure that the fan operates smoothly and efficiently, contributing to effective engine cooling ².

Front Water Tube and Intake Manifold

In the front water tube and intake manifold, the screw is used to fasten components that are critical for the circulation of coolant and the intake of air-fuel mixture. This ensures that these systems operate under precise conditions for optimal engine performance ².

Primer and Engine Lubricating System

Within the primer system and engine lubricating system, the screw secures components that are essential for the initial startup and continuous lubrication of engine parts. This is important for reducing friction and wear ².

Radiator Cooling System

In the radiator cooling system, the screw is used to fasten components such as the radiator support and cooling fins. This ensures that the radiator maintains its structural integrity and operates efficiently to cool the engine ².

Resistor and Corrosion Protection

The screw also finds its use in securing resistors and corrosion protection components. This helps in maintaining electrical connections and protecting metal parts from corrosion, thereby extending the lifespan of the engine components ².

Conclusion

The 3100066 Hex Flanged Head Cap Screw is a versatile fastener that plays a significant role in the secure assembly and efficient operation of various engine systems. Its robust design, resistance to corrosion, and ease of installation make it an essential component in Cummins engines, contributing to the overall reliability and performance of commercial trucks ².