3092552
Twelve Point Cap Screw
Cummins®

The Twelve-Point Cap Screw, Part #3092552, manufactured by Cummins, is a specialized fastener designed for use in heavy-duty trucks. Cummins, a well-established name in the automotive industry, is known for its commitment to quality and innovation. This particular cap screw is significant due to its robust design and the role it plays in ensuring the integrity and performance of various truck components.

Basic Concepts of Twelve-Point Cap Screws

A Twelve-Point Cap Screw is a type of fastener characterized by its hexagonal head with twelve points, as opposed to the more common six-point design. This design offers several advantages, including increased contact area and reduced likelihood of cam-out during tightening. In the automotive industry, twelve-point cap screws are often used in applications where high torque and resistance to loosening are required ¹.

Purpose and Role in Truck Operation

The 3092552 Twelve-Point Cap Screw is integral to the operation of heavy-duty trucks. It is utilized in various components and systems, such as engine mounts, transmission assemblies, and chassis structures. By providing a secure and stable connection, this cap screw helps maintain the structural integrity and performance of these critical truck components.

Key Features

The 3092552 Twelve-Point Cap Screw features a robust design that includes a twelve-point head for enhanced grip and reduced cam-out. It is made from high-strength materials, ensuring durability and resistance to wear. Additionally, the screw may have a zinc-plated or other protective coating to enhance corrosion resistance, making it suitable for use in harsh operating environments.

Benefits

Using the 3092552 Twelve-Point Cap Screw offers several benefits. Its design provides improved fastening strength, making it less likely to loosen over time compared to standard six-point cap screws. The material composition and protective coatings contribute to its longevity, even in demanding conditions. This results in reduced maintenance requirements and increased reliability for truck operators ².

Installation Guidelines

Proper installation of the 3092552 Twelve-Point Cap Screw is crucial for optimal performance. It should be installed using the appropriate torque specifications provided by the manufacturer to ensure a secure fit without over-tightening. Special considerations may include using a torque wrench and following any specific guidelines for the application to avoid damage to the screw or the components being fastened.

Troubleshooting and Maintenance

Common issues with the 3092552 Twelve-Point Cap Screw may include loosening or corrosion. Regular inspections can help identify these problems early. Maintenance tips include ensuring proper torque during installation, applying a thread locker if specified, and protecting the screw from exposure to corrosive elements. Addressing issues promptly can prolong the service life of the cap screw and maintain the performance of the truck.

Cummins: Manufacturer Overview

Cummins is a reputable manufacturer with a long history in the automotive industry. Known for its commitment to quality and innovation, Cummins produces a wide range of components for heavy-duty trucks. Their products are designed to meet the rigorous demands of commercial and industrial applications, ensuring reliability and performance. Cummins’ reputation is built on a foundation of engineering excellence and customer satisfaction.

Twelve-Point Cap Screw in Cummins Engines

The Twelve-Point Cap Screw part number 3092552, manufactured by Cummins, is a critical component in several Cummins engine models. This screw is designed to provide robust fastening capabilities, ensuring secure connections in various engine assemblies.

QST30 CM552 Engines

In the QST30 CM552 engines, the Twelve-Point Cap Screw 3092552 is utilized in several key areas. Its primary function is to secure different parts of the engine together, maintaining structural integrity and operational efficiency. This screw is often found in the engine’s head, block, and other critical assemblies where high-strength fastening is required.

Grouping of Engines

The Twelve-Point Cap Screw 3092552 is also integral to the assembly of other Cummins engines, including but not limited to, the QST30 series. This screw’s design allows it to withstand high levels of stress and torque, making it suitable for use in environments where reliability and durability are paramount.

The screw’s twelve-point design provides better grip and reduces the likelihood of rounding off, which is essential for the longevity and performance of the engine. Its application across various Cummins engine models underscores its versatility and importance in ensuring the engines’ operational efficiency.

Part 3092552 Twelve-Point Cap Screw Component Usage

The part 3092552 Twelve-Point Cap Screw is integral in securing various components within engine systems. Its design allows for efficient torque application and reliable fastening, which is essential for maintaining the integrity and performance of the engine.

Lever Systems

In lever systems, the Twelve-Point Cap Screw is used to attach the lever to its pivot point. This ensures that the lever remains securely in place during operation, allowing for precise control and movement. The screw’s design provides a strong grip, reducing the risk of loosening under dynamic loads. This is particularly important in high-stress environments where the lever may experience significant force and vibration.

Rocker Systems

Within rocker systems, the Twelve-Point Cap Screw plays a key role in attaching the rocker arm to its mounting bracket. The rocker arm is a pivotal component that translates the motion from the camshaft to the valves. Secure fastening is vital to ensure that the rocker arm maintains its position and operates smoothly. The Twelve-Point Cap Screw’s ability to withstand high torque without stripping or loosening ensures consistent valve operation, which is essential for engine efficiency and performance.

By utilizing the Twelve-Point Cap Screw in these applications, engineers and mechanics can achieve reliable and durable fastening solutions that contribute to the overall stability and functionality of the engine system.

Conclusion

The 3092552 Twelve-Point Cap Screw is a critical component in the operation of heavy-duty trucks and Cummins engines. Its robust design, high-strength materials, and protective coatings make it suitable for demanding environments. Proper installation and maintenance are essential to ensure optimal performance and longevity. Cummins’ commitment to quality and innovation is evident in the design and functionality of this part, contributing to the reliability and efficiency of truck and engine systems.