3627945
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, Part #3627945 by Cummins, is a specialized fastener designed for use in commercial truck maintenance. It ensures the structural integrity of various truck components by providing a secure and reliable fastening solution. Its design and construction are tailored to meet the demanding requirements of heavy-duty applications, contributing to both the safety and performance of commercial trucks ¹.

Basic Concepts of Twelve Point Cap Screws

A twelve point cap screw is a type of fastener that features a twelve-sided head, as opposed to the six-sided head of standard cap screws. This design allows for greater torque application without the risk of cam-out, which occurs when a tool slips off the fastener head ². In the automotive industry, twelve point cap screws are commonly used in applications where high torque and secure fastening are required, such as in engine components, transmission systems, and chassis assemblies.

Purpose of the 3627945 Twelve Point Cap Screw in Truck Operation

This Cummins part is designed to secure various components within commercial trucks. It maintains the structural integrity of critical parts, ensuring that they remain firmly in place under operational stress. This fastener is particularly important in applications where vibrations and dynamic loads are present, as it helps to prevent loosening and ensures the continued safe operation of the truck ³.

Key Features of the 3627945 Twelve Point Cap Screw

The 3627945 Twelve Point Cap Screw is constructed with a focus on durability and performance. It is made from high-strength materials, typically alloy steel, which provides excellent resistance to wear and corrosion. The screw features a fine thread, which allows for precise adjustments and secure fastening. Additionally, the twelve-point head design enhances torque application efficiency and reduces the likelihood of stripping during installation or removal ⁴.

Benefits of Using the 3627945 Twelve Point Cap Screw

Using this part offers several advantages. The twelve-point head allows for increased torque application without cam-out, making it easier to achieve the required fastening force. This design also reduces the risk of stripping, ensuring a secure and lasting connection. Furthermore, the fine thread provides enhanced grip, which is particularly beneficial in applications where vibrations are common ⁵.

Installation Guidelines

Proper installation of the 3627945 Twelve Point Cap Screw is crucial for ensuring its effectiveness. Begin by cleaning the mating surfaces to remove any debris or corrosion. Use a torque wrench to apply the specified torque, ensuring that the fastener is tightened to the manufacturer’s recommendations. It is also advisable to use a socket designed for twelve-point fasteners to prevent damage to the screw head during installation.

Troubleshooting Common Issues

Common issues with twelve point cap screws include loosening due to vibrations and corrosion. To address loosening, ensure that the fastener is tightened to the correct torque specification and consider using a thread locker to enhance security. Corrosion can be mitigated by regularly inspecting the fastener and applying a corrosion-resistant coating if necessary. If corrosion is detected, clean the affected area thoroughly before re-installing the fastener.

Maintenance Tips

Regular maintenance of the 3627945 Twelve Point Cap Screw is important for ensuring its longevity and reliable performance. Inspect the fastener at regular intervals for signs of wear, corrosion, or loosening. Clean the screw and mating surfaces as needed to remove any buildup that could affect performance. Additionally, reapplying a corrosion-resistant coating can help protect the fastener from environmental factors.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. The company is committed to producing reliable and high-performance components, ensuring that their products meet the rigorous demands of heavy-duty applications.

Twelve Point Cap Screw 3627945 in Cummins Engines

The Twelve Point Cap Screw 3627945, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is designed to provide robust fastening in high-stress environments, ensuring the integrity and performance of the engine.

GTA38 G CMEICS G116C

In the GTA38 G CMEICS G116C engine, the Twelve Point Cap Screw 3627945 is utilized to secure critical components, ensuring they remain tightly fastened under operational stress. This screw’s design allows for precise torque application, which is essential for maintaining the alignment and stability of the engine parts.

K38, K50, KTA38GC CM558, QSK38 CM2150 MCRS, QSK38 CM850 MCRS

For the K38, K50, and KTA38GC CM558 engines, the Twelve Point Cap Screw 3627945 plays a vital role in fastening various engine components. Its twelve-point design provides a better grip and reduces the likelihood of rounding off, which is crucial for the longevity and reliability of the engine.

Similarly, in the QSK38 CM2150 MCRS and QSK38 CM850 MCRS engines, this screw is used to secure components that are subject to significant mechanical stress. The screw’s ability to withstand high torque and maintain its fastening integrity ensures the engine operates smoothly and efficiently.

QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108

In the QSK50 CM2150 K107, QSK50 CM2150 MCRS, and QSK50 CM2350 K108 engines, the Twelve Point Cap Screw 3627945 is employed in several key areas. Its application in these engines ensures that critical components are securely fastened, which is essential for the overall performance and durability of the engine. The screw’s design allows for easy installation and removal, facilitating maintenance and repairs.

Role of Part 3627945 Twelve Point Cap Screw in Engine Systems

The part 3627945 Twelve Point Cap Screw is instrumental in securing various components within engine systems. It is commonly used to fasten the base part to the engine block, ensuring a stable and secure connection. This screw plays a significant role in maintaining the integrity of the base parts, which are essential for the structural framework of the engine.

In the assembly of the long block, specifically the Long Block Assy. - 50, the Twelve Point Cap Screw is utilized to attach the base to the block. This connection is vital for the overall stability and alignment of the engine components.

Additionally, the screw is employed in the mounting of the cam follower and camshaft mounting follower. By securing these components, it ensures precise operation and reduces the likelihood of misalignment, which could lead to engine inefficiencies or failures.

The main bearings, which are critical for the smooth rotation of the crankshaft, also benefit from the secure fastening provided by the Twelve Point Cap Screw. This screw helps in maintaining the proper spacing and alignment of the main bearings, contributing to the engine’s overall performance and longevity.

Conclusion

In summary, the part 3627945 Twelve Point Cap Screw is a fundamental component in the assembly and maintenance of various engine parts, playing a key role in ensuring the structural integrity and operational efficiency of the engine system.