3101643
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, part number 3101643, manufactured by Cummins, is a specialized fastener designed for heavy-duty truck applications. Cummins, a renowned name in the automotive industry, is known for its commitment to quality and innovation. This part is engineered to meet the demanding requirements of heavy-duty trucks, ensuring reliable performance and durability in various structural and component applications.

Basic Concepts of Twelve Point Cap Screws

A Twelve Point Cap Screw is a type of fastener characterized by its twelve-sided head, which provides a larger contact area compared to traditional six-point screws. This design allows for better torque application and reduced risk of stripping during installation and removal ¹. The twelve-point configuration also offers enhanced security, making it less likely for the screw to loosen over time. Unlike six-point screws, twelve-point screws provide a more stable and secure fastening solution, particularly in high-stress environments.

Purpose of the 3101643 Twelve Point Cap Screw in Truck Operation

This Cummins part plays a significant role in the operation of heavy-duty trucks. It is utilized in various applications within the truck’s structure and components, including but not limited to, securing engine components, attaching body panels, and fastening chassis parts. Its robust design ensures that critical connections remain intact under the strenuous conditions typical of heavy-duty truck use.

Key Features

The 3101643 Twelve Point Cap Screw boasts several key features that enhance its performance and durability. It is composed of high-strength materials, typically alloy steel, which provides excellent resistance to wear and corrosion. The screw features a fine thread type, allowing for precise adjustments and secure fastening. Additionally, its unique twelve-point head design ensures easy installation and removal while minimizing the risk of damage to the screw or surrounding components.

Benefits of Using the 3101643 Twelve Point Cap Screw

Using this part offers several advantages. Its design allows for improved torque application, ensuring that components are securely fastened without over-tightening. The resistance to stripping makes it a reliable choice for applications where frequent disassembly and reassembly are required. Furthermore, the enhanced security provided by the twelve-point head reduces the likelihood of loosening, contributing to the overall safety and reliability of the truck.

Installation Guidelines

Proper installation of the 3101643 Twelve Point Cap Screw is crucial for ensuring secure and effective fastening. Begin by cleaning the mating surfaces to remove any debris or corrosion. Use a torque wrench to install the screw, applying the recommended torque specifications to avoid over-tightening. It is also advisable to use a thread locker to further secure the screw in place, especially in high-vibration environments. Ensure that the screw is installed perpendicular to the surface to maintain even pressure distribution.

Troubleshooting Common Issues

Common issues associated with Twelve Point Cap Screws include loosening and corrosion. To address loosening, inspect the screw regularly and re-torque as necessary. If corrosion is detected, clean the affected area thoroughly and apply a corrosion-resistant coating. In cases where the screw shows signs of wear or damage, replacement is recommended to maintain the integrity of the fastening application.

Maintenance Tips

Regular maintenance of the 3101643 Twelve Point Cap Screw is essential for ensuring longevity and reliable performance. Inspect the screw periodically for signs of wear, corrosion, or loosening. Re-torque the screw according to the manufacturer’s specifications to maintain the proper tension. Additionally, keep the surrounding area clean and free of debris to prevent contamination that could lead to premature failure.

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 dating back to 1919, Cummins has established a reputation for quality, innovation, and reliability in the automotive industry. The company’s commitment to excellence is evident in its extensive range of truck components, including the 3101643 Twelve Point Cap Screw, which is designed to meet the rigorous demands of heavy-duty applications.

Twelve Point Cap Screw 3101643 in Cummins Engines

The Twelve Point Cap Screw 3101643, manufactured by Cummins, is a critical component in various Cummins engine models. This part is designed to provide robust fastening capabilities, ensuring secure connections in the engine assembly.

ISZ13 CM2150 Z105

In the ISZ13 CM2150 Z105 engine, the 3101643 cap screw is utilized in several key areas where high-strength fastening is required. It helps maintain the integrity of engine components, ensuring that parts remain securely in place under operational stresses.

QSX15 CM2250 ECF and QSX15 CM2350 X105

For the QSX15 CM2250 ECF and QSX15 CM2350 X105 engines, the 3101643 cap screw is employed in similar critical applications. These engines, known for their durability and performance, depend on the reliability of the 3101643 screw to secure various components, contributing to the overall stability and efficiency of the engine.

QSZ13 CM2150 Z102

In the QSZ13 CM2150 Z102 engine, the 3101643 cap screw is also a vital part of the assembly. It is used in areas where precise and strong fastening is necessary to maintain the structural integrity of the engine under varying operational conditions.

The consistent use of the 3101643 cap screw across these Cummins engine models highlights its importance in ensuring the reliability and performance of the engines.

Part 3101643 Twelve Point Cap Screw Component Usage

The part 3101643 Twelve Point Cap Screw is integral to the assembly and securement of various engine components, ensuring both stability and efficient operation.

In the context of the flywheel, the Twelve Point Cap Screw is utilized to firmly attach the flywheel to the crankshaft. This securement is vital for the transmission of rotational energy from the engine to the transmission system. The screw’s design allows for a robust connection, minimizing the risk of loosening under the high torque and vibrations typical in engine operation.

For the flywheel mounting, the Twelve Point Cap Screw plays a significant role in maintaining the alignment and integrity of the flywheel within the engine assembly. Proper mounting is essential for the smooth operation of the engine, as it ensures that the flywheel can rotate without undue friction or misalignment, which could lead to increased wear and potential failure of the component.

In summary, the part 3101643 Twelve Point Cap Screw is a key element in the securement and alignment of the flywheel and its mounting, contributing to the overall reliability and performance of the engine system.

Conclusion

The 3101643 Twelve Point Cap Screw by Cummins is a vital component in heavy-duty truck applications, offering robust fastening capabilities and enhanced security. Its design and material composition ensure reliable performance under strenuous conditions, making it an essential part for maintaining the integrity and efficiency of heavy-duty engines and truck components.