3694070
Studded Flange Cap Screw
Cummins®

The Cummins 3694070 Studded Flange Cap Screw is a specialized fastener designed for use in commercial trucks. It serves a pivotal role in securing various components within the truck’s mechanical system, ensuring stability and integrity under operational conditions. This part is particularly valued in the trucking industry for its robust design and reliable performance.

Basic Concepts

A Studded Flange Cap Screw, such as the Cummins 3694070, consists of a threaded stud that passes through a flange and is secured with a cap screw. The flange provides a broad surface area for distribution of clamping force, which enhances the screw’s ability to hold components firmly in place. This type of fastener is integral in applications where high tensile strength and resistance to vibration are required ¹.

Purpose and Role

The 3694070 Studded Flange Cap Screw plays a significant role in the operation of commercial trucks by securing critical components that are subject to dynamic loads and vibrations. It is commonly used in applications involving the attachment of heavy-duty components such as engine mounts, exhaust systems, and chassis parts. Its design ensures that these components remain securely fastened, contributing to the overall safety and efficiency of the vehicle ².

Key Features

The Cummins 3694070 Studded Flange Cap Screw is characterized by its durable construction, which typically includes high-strength steel for enhanced tensile strength. The studded design allows for easy installation and removal, while the flange distributes clamping force more evenly across the connected surfaces. Additionally, the cap screw is designed to resist corrosion, which is vital for maintaining integrity in various environmental conditions ³.

Benefits

Utilizing the Cummins 3694070 Studded Flange Cap Screw offers several advantages in truck operations. Its robust design contributes to the durability and reliability of the fastening application, reducing the likelihood of component failure. The screw’s resistance to corrosion and vibration ensures long-term performance, even in demanding operational environments. Moreover, its ease of installation and removal facilitates maintenance procedures, enhancing overall efficiency ⁴.

Installation Process

Proper installation of the Cummins 3694070 Studded Flange Cap Screw involves several steps to ensure secure fastening. Begin by aligning the stud with the designated hole in the flange. Insert the stud through the flange and into the corresponding threaded hole in the component being secured. Use a torque wrench to tighten the cap screw to the manufacturer’s specified torque setting, ensuring even clamping force across the flange. Safety precautions, such as wearing protective gloves and eyewear, should be observed during installation.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 3694070 Studded Flange Cap Screw, regular maintenance is recommended. Inspect the screw and flange for signs of wear or corrosion at routine intervals. Cleaning the surfaces before re-torquing the cap screw can prevent loosening due to debris accumulation. Additionally, applying a thread locker compound can enhance the screw’s resistance to vibration, further securing the fastening application.

Troubleshooting Common Issues

Common issues with the Cummins 3694070 Studded Flange Cap Screw may include loosening due to vibration or corrosion. If loosening is detected, re-torque the cap screw to the manufacturer’s specifications. In cases of corrosion, cleaning the affected areas and applying a corrosion-resistant coating can help. For severe damage or wear, replacement of the screw may be necessary to maintain secure fastening.

Manufacturer Overview - Cummins

Cummins is a renowned manufacturer in the automotive and heavy-duty truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance components, Cummins has established a strong reputation for excellence. Their products, including the 3694070 Studded Flange Cap Screw, are designed with precision engineering and rigorous testing to meet the demanding requirements of commercial truck applications.

Compatibility with Cummins Engines

The Studded Flange Cap Screw 3694070 is compatible with various Cummins engine models, ensuring the structural integrity and operational efficiency of the engines. Below is a detailed overview of its compatibility across different Cummins engine series.

B5.6 and B6.7 Series

The Studded Flange Cap Screw 3694070 is compatible with the B5.6 CM2670 B152B and B6.7 CM2670 B153B engines. These engines are part of the Cummins B Series, known for their reliability and performance in various applications. The screw is used in securing flanges that connect different parts of the engine, ensuring a tight and leak-proof seal.

ISB5.9 Series

For the ISB5.9 CM2880 engines, which include the B110, B140, and B149 variants, the Studded Flange Cap Screw 3694070 is essential. These engines are widely used in heavy-duty applications, and the screw’s robust design helps maintain the integrity of the engine’s connections under high stress and varying conditions.

ISBE4 Series

The ISBE4 CM850 engine also utilizes the Studded Flange Cap Screw 3694070. This engine is designed for on-highway applications, and the screw’s precision ensures that all flanges are securely fastened, contributing to the engine’s overall performance and longevity.

ISG and QSG Series

The ISG11 CM2880 G108, ISG12 CM2880 G107, and QSG12 CM2880 G112 engines are part of the Cummins ISG and QSG series, which are known for their efficiency and power. The Studded Flange Cap Screw 3694070 is used in these engines to secure flanges that are critical for maintaining the engine’s structural integrity and operational efficiency.

X11, X12, X12N, and X13 Series

The X11 CM2670 X126B, X12 CM2670 X121B, X12N CMMDG1 X143B, and X13 CM2670 X122B engines also incorporate the Studded Flange Cap Screw 3694070. These engines are designed for specific applications, and the screw’s design ensures that all flanges are securely fastened, contributing to the engine’s performance and durability.

X12N Series

The X12N CMMDG1 X143B engine, part of the X12N series, uses the Studded Flange Cap Screw 3694070 to secure its flanges. This engine is designed for specific heavy-duty applications, and the screw’s precision is crucial for maintaining the engine’s structural integrity.

X12/X12 CM2350 G110

The X12/X12 CM2350 G110 engine also utilizes the Studded Flange Cap Screw 3694070. This engine is designed for specific applications, and the screw’s robust design ensures that all flanges are securely fastened, contributing to the engine’s overall performance and longevity.

Role of Part 3694070 Studded Flange Cap Screw in Engine Systems

The Part 3694070 Studded Flange Cap Screw is instrumental in securing various components within engine systems, ensuring stability and efficient operation.

Drive System Integration

In the drive system, this screw is often used to fasten the drive belt tensioner. Proper tensioning of the drive belt is essential for the efficient transfer of power from the engine to auxiliary components such as the alternator, water pump, and air conditioning compressor. The studded flange design of the screw provides additional surface area for a secure fit, reducing the risk of loosening under vibration.

Fan Assembly

Within the fan assembly, the Part 3694070 screw plays a significant role in attaching the fan blades to the fan hub. This ensures that the fan operates smoothly, providing adequate airflow to cool the engine. Consistent and reliable cooling is vital for maintaining optimal engine temperature and preventing overheating.

Oil Pan Securing

The screw is also utilized in the attachment of the oil pan to the engine block. A secure oil pan is essential for maintaining the integrity of the lubrication system. It ensures that oil is properly contained and distributed throughout the engine, reducing the risk of leaks and ensuring that all moving parts are adequately lubricated.

Oil System Components

In the oil system, the Part 3694070 screw is employed to fasten various components such as the oil filter housing and oil pressure sensor. These components are critical for monitoring and maintaining the health of the engine’s lubrication system. A secure attachment ensures that these components function correctly, providing accurate readings and efficient filtration.

Conclusion

Overall, the Part 3694070 Studded Flange Cap Screw is a versatile fastener that enhances the reliability and performance of multiple engine components. Its design and functionality make it an essential part in the assembly and maintenance of engine systems.