3011712
Captive Washer Cap Screw
Cummins®

The Captive Washer Cap Screw, Part #3011712 by Cummins, is a specialized fastener designed for use in commercial truck maintenance. Cummins, a well-established manufacturer in the automotive industry, produces this component to meet the demanding requirements of heavy-duty applications. This screw plays a role in ensuring the reliability and durability of commercial trucks by securing various components and contributing to the overall structural integrity of the vehicle.

Basic Concepts

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer, which is held in place by a protrusion or step on the screw’s shank. This design eliminates the need for separate washers, streamlining the assembly process and reducing the risk of washer loss during installation. In mechanical assemblies, these screws are used to join components securely, distribute load evenly, and prevent damage to the joined surfaces.

Purpose and Function

The 3011712 Captive Washer Cap Screw is specifically engineered for use in commercial trucks. It serves to secure critical components, ensuring they remain firmly in place under various operating conditions. By providing a stable connection, this screw helps maintain the structural integrity of the truck, which is vital for safe and efficient operation. Its design allows for consistent torque application, which is important for maintaining proper tension and load distribution across the fastened components.

Key Features

The 3011712 Captive Washer Cap Screw boasts several specific characteristics that enhance its performance. It is typically made from high-strength materials, such as alloy steel, to withstand the rigors of heavy-duty use. The screw features a hexagonal head for easy installation using standard tools, and the integrated washer is designed to provide a uniform load distribution. Additionally, the screw may include coatings or treatments to improve corrosion resistance and longevity in harsh environments.

Benefits

Using the 3011712 Captive Washer Cap Screw offers several advantages. The integrated washer simplifies the installation process, reducing the time and effort required compared to using separate screws and washers. This screw also enhances reliability by ensuring consistent load distribution and preventing washer loss. Furthermore, its robust design contributes to maintenance efficiency, as it is less likely to loosen over time, thereby reducing the need for frequent re-tightening.

Troubleshooting and Maintenance

Common issues associated with Captive Washer Cap Screws include corrosion, loosening, and damage due to over-torquing. To troubleshoot these problems, it is important to inspect the screws regularly for signs of wear or corrosion. If corrosion is detected, cleaning the affected area and applying a protective coating can help mitigate further damage. Loose screws should be re-tightened to the manufacturer’s specified torque settings to ensure proper tension. In cases of damage, replacing the screw with a new one is recommended to maintain structural integrity.

Cummins Overview

Cummins is a renowned manufacturer with a strong reputation in the automotive industry. The company is committed to producing high-quality components that meet the stringent demands of commercial and industrial applications. Cummins’ dedication to innovation, quality, and customer satisfaction has established them as a trusted provider of automotive parts, including the 3011712 Captive Washer Cap Screw. Their products are designed to deliver reliable performance and durability, making them a preferred choice for professionals in the field.

Captive Washer Cap Screw (Part 3011712) in Cummins Engines

The Captive Washer Cap Screw (Part 3011712) is a component in several Cummins engine models, ensuring secure fastening and stability. This part is integral to the assembly and operation of various engine types, providing a reliable connection between different parts.

G855 Series

The G855 engine series, including its variants such as G855 CM558 and GTA855 CM558 (CM2358), utilizes the Captive Washer Cap Screw in several key areas. These engines are known for their robust design and high performance, and the cap screw plays a role in maintaining the integrity of the engine’s structure.

G101 Series

In the G101 engine, the Captive Washer Cap Screw is used to secure various components, ensuring that the engine operates smoothly and efficiently. This engine is part of the broader G series, which is recognized for its reliability and durability.

N14 Series

The N14 engine series, which includes models such as N14 CELECT, N14 CELECT PLUS, N14 G, and N14 MECHANICAL, also incorporates the Captive Washer Cap Screw. These engines are widely used in various applications due to their versatility and performance. The cap screw is important in maintaining the alignment and stability of the engine’s components.

NH/NT 855 Series

The NH/NT 855 engine model utilizes the Captive Washer Cap Screw to ensure that all parts are securely fastened. This engine is part of the larger NH/NT series, known for its efficiency and power.

QSN14 Series

The QSN14 engine series, including models such as QSN14 CM876 N103 and QSNT14 CM876 N102, also employs the Captive Washer Cap Screw. These engines are designed for heavy-duty applications and require robust fastening solutions to handle the demanding conditions they operate under.

In summary, the Captive Washer Cap Screw (Part 3011712) is a component across various Cummins engine models, ensuring the secure assembly and reliable operation of these engines.

Role of Part 3011712 Captive Washer Cap Screw in Engine Systems

The 3011712 Captive Washer Cap Screw is integral to the assembly and securement of various components within engine systems. It is specifically designed to provide a reliable fastening solution that ensures components remain firmly in place under operational stress.

In the context of the ebm-cover and ebm:cover, the 3011712 screw is utilized to attach these covers securely to the engine block, ensuring that they remain intact during engine operation. This is particularly important for maintaining the integrity of the engine’s external casing and protecting internal components from debris.

For the front gear and front gear cover, the screw plays a role in securing these components, which are essential for the transmission of power from the engine to other parts of the machinery. Proper fastening ensures that the gear cover remains sealed, preventing lubricant leakage and contamination.

In the case of the engine mount and engine mounting, the 3011712 screw is employed to fasten the engine securely to the vehicle’s frame. This is vital for absorbing vibrations and ensuring that the engine remains stable during operation, which contributes to the overall durability and performance of the engine system.

For the engine supports and front engine support, these screws are used to reinforce the structural integrity of the engine’s supporting framework. This is important for withstanding the dynamic forces generated during engine operation.

The fan bracket and fan drive components also benefit from the secure fastening provided by the 3011712 screw. These components are responsible for cooling the engine, and their secure attachment is necessary to ensure efficient operation and prevent failure under thermal stress.

Lastly, for the gear case cover mounting and gear cover mounting, the screw ensures that the gear case covers are tightly secured, which is essential for maintaining the precision alignment of gears and the overall efficiency of the gear system.

Overall, the 3011712 Captive Washer Cap Screw is a fundamental component in the securement and operational reliability of various engine system components.

Conclusion

The 3011712 Captive Washer Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and various Cummins engine models. Its design and features contribute to the reliability, durability, and efficiency of these systems. Regular maintenance and proper use of this screw are essential for ensuring the continued performance and safety of the vehicles and engines it supports.