3094522
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, Part #3094522 by Cummins, is a specialized fastener designed for use in commercial truck maintenance and operation. This component is integral to ensuring the secure assembly of various truck components, contributing to the vehicle’s overall functionality and safety. Its design and material composition are tailored to withstand the demanding conditions encountered in commercial trucking, making it a vital part of truck maintenance routines ¹.

Basic Concepts of Twelve Point Cap Screws

A twelve point cap screw is a type of fastener characterized by its hexagonal socket head, which provides a larger contact area compared to traditional hex-head screws. This design allows for more torque to be applied without stripping the head, making it suitable for high-stress applications. In the automotive industry, twelve point cap screws are commonly used in applications requiring secure fastening and resistance to loosening, such as in engine components, chassis assemblies, and other critical areas ².

Purpose and Role in Truck Operation

The Twelve Point Cap Screw, Part #3094522, plays a specific role in the operation of commercial trucks by securely fastening components that are subject to vibration and high stress. Its application ensures that critical parts remain firmly in place, contributing to the truck’s overall performance and safety. By providing a reliable fastening solution, this cap screw helps maintain the integrity of truck assemblies under various operating conditions ³.

Key Features

The Twelve Point Cap Screw, Part #3094522, features a robust design with a twelve-sided socket head, allowing for increased torque application without the risk of cam-out. It is manufactured from high-strength materials, ensuring durability and resistance to corrosion. The screw’s unique head design also facilitates easier installation and removal, even in tight spaces, enhancing its utility in truck maintenance ⁴.

Benefits

Utilizing the Twelve Point Cap Screw, Part #3094522, offers several advantages, including improved torque application due to its larger contact area, enhanced resistance to stripping, and increased security in fastening applications. These benefits contribute to more reliable and durable truck assemblies, reducing the likelihood of fastener failure and the need for frequent maintenance.

Installation Guidelines

Proper installation of the Twelve Point Cap Screw, Part #3094522, involves using the correct torque specifications to ensure optimal performance and longevity. It is recommended to use a torque wrench to apply the specified torque, avoiding over-tightening which can lead to damage. Additionally, ensuring the mating surfaces are clean and free of debris will help achieve a secure and lasting fastening.

Troubleshooting and Maintenance

Common issues with the Twelve Point Cap Screw, Part #3094522, may include loosening due to vibration or corrosion. Regular inspection and maintenance, such as checking for tightness and signs of corrosion, can help identify potential problems early. In cases where corrosion is present, cleaning the affected area and applying a suitable anti-corrosion treatment can prolong the life of the fastener.

Compatibility and Applications

The Twelve Point Cap Screw, Part #3094522, is designed for use in various applications within commercial trucks, including but not limited to, engine components, chassis assemblies, and other critical areas requiring secure fastening. Its compatibility with a wide range of truck models makes it a versatile choice for truck maintenance professionals.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the commercial truck industry, Cummins is known for its high-quality components and innovative solutions. The company’s commitment to excellence and customer satisfaction has established it as a trusted source for truck components, including the Twelve Point Cap Screw, Part #3094522.

Twelve Point Cap Screw 3094522 in Cummins Engines

The Twelve Point Cap Screw 3094522, manufactured by Cummins, is a critical component in several of their engine models. This screw is integral to the assembly and maintenance of the engines, ensuring structural integrity and operational efficiency.

B3.3 and QSB3.3 Series

In the B3.3 and QSB3.3 engines, the 3094522 screw is used in various applications, including securing engine components and ensuring proper alignment of parts. These engines, known for their reliability and performance, benefit from the precision and strength provided by this screw.

QSB3.3 CM2150 and QSB3.3 CM2250 EC

For the QSB3.3 CM2150 and QSB3.3 CM2250 EC engines, the 3094522 screw plays a vital role in maintaining the structural integrity of the engine’s components. Its use in these models ensures that the engine operates smoothly and efficiently, with the screw’s design providing the necessary strength and durability.

QST30 CM552

In the QST30 CM552 engine, the 3094522 screw is utilized in critical areas where high strength and precision are required. This engine, designed for heavy-duty applications, relies on the screw to maintain the alignment and stability of its components, ensuring optimal performance under demanding conditions.

Each of these engines, while differing in their specific applications and capabilities, shares a common reliance on the 3094522 screw for its operational integrity and performance.

Part 3094522 Twelve Point Cap Screw Component Usage

The Part 3094522 Twelve Point Cap Screw is instrumental in ensuring the secure assembly and reliable operation of various engine components. Its design allows for efficient torque application and resistance to loosening, making it a preferred choice for high-stress applications within engine systems.

Camshaft and Gear

In the camshaft and gear assembly, the Twelve Point Cap Screw is used to fasten the camshaft to the engine block. This ensures precise alignment and secure mounting, which is essential for the smooth operation of the valve train. The screw’s twelve-point design provides enhanced grip, reducing the risk of cam lobe wear and ensuring consistent valve timing.

Housing

For engine housing components, the Twelve Point Cap Screw plays a role in attaching the housing to the engine frame. This secure attachment is vital for maintaining the structural integrity of the engine, especially under varying operational conditions. The screw’s design allows for easy installation and removal without damaging the housing or the frame.

Flywheel

In flywheel applications, the Twelve Point Cap Screw is employed to attach the flywheel to the crankshaft. This connection is fundamental for transmitting power from the engine to the transmission. The screw’s robust design ensures that the flywheel remains firmly in place, even under high torque conditions, contributing to the engine’s overall performance and durability.

Injector

For fuel injectors, the Twelve Point Cap Screw is used to secure the injector to the engine block or cylinder head. This ensures a leak-free seal and proper alignment, which is essential for accurate fuel delivery and combustion. The screw’s design facilitates precise torque application, enhancing the injector’s performance and reliability.

Lever

In lever mechanisms, such as those found in valvetrain systems, the Twelve Point Cap Screw is utilized to attach levers to pivot points or mounting brackets. This secure attachment is crucial for the lever’s function, ensuring it operates smoothly and efficiently under the engine’s dynamic conditions.

Rocker

For rocker arms, the Twelve Point Cap Screw is employed to fasten the rocker to the engine block or cylinder head. This secure connection is vital for transmitting motion from the camshaft to the valves, ensuring precise valve actuation. The screw’s design allows for consistent torque application, enhancing the rocker arm’s performance and longevity.

Module

In engine control modules and other electronic components, the Twelve Point Cap Screw is used to attach the module to the engine or chassis. This secure mounting is essential for protecting the module from vibrations and ensuring stable operation. The screw’s design provides a reliable connection, contributing to the module’s functionality and durability.

Vent Tube

For vent tubes and other ancillary components, the Twelve Point Cap Screw is utilized to secure these parts to the engine or frame. This ensures proper venting and drainage, which is important for maintaining engine health and performance. The screw’s design allows for easy installation and removal, facilitating maintenance and repairs.

Conclusion

The Twelve Point Cap Screw, Part #3094522 by Cummins, is a critical component in the maintenance and operation of commercial trucks. Its robust design, high-strength materials, and unique twelve-point head make it ideal for high-stress applications within engine systems. Proper installation, regular maintenance, and understanding its role in various engine components ensure the longevity and reliability of truck assemblies.