3171752
Hexagon Flange Head Cap Screw
Cummins®

The 3171752 Hex Flange Head Cap Screw is a specialized fastener produced by Cummins, a well-established manufacturer in the commercial truck industry. This screw is designed for use in various fastening applications within commercial trucks, contributing to the secure assembly and maintenance of truck components.

Basic Concepts of Hex Flange Head Cap Screws

Hex Flange Head Cap Screws are a type of fastener characterized by a hexagonal head and a flanged base. These screws are commonly used in applications requiring a high degree of fastening security and resistance to loosening. Mechanically, the hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area to distribute load and prevent the screw from pulling through the material ¹.

Purpose and Role in Truck Operation

In the context of commercial truck operations, the 3171752 Hex Flange Head Cap Screw plays a significant role in the assembly and maintenance of various truck components. It is utilized in applications where secure fastening is required, such as attaching brackets, panels, and other structural elements. The screw’s design ensures that components remain firmly in place, even under the dynamic conditions experienced by commercial trucks ².

Key Features

The 3171752 Hex Flange Head Cap Screw features a robust design that includes a hexagonal head for easy tool engagement and a flanged base to enhance load distribution. It is manufactured from high-quality materials, typically steel alloys, which provide excellent strength and durability. The screw may also include coatings or treatments to improve resistance to corrosion and wear, ensuring long-term performance in demanding environments.

Benefits

Using the 3171752 Hex Flange Head Cap Screw offers several benefits. The screw’s design allows for improved load distribution, which helps to prevent damage to the fastened materials. Enhanced fastening security is achieved through the combination of the hexagonal head and flanged base, reducing the risk of loosening over time. Additionally, the material composition and potential coatings contribute to resistance against corrosion and wear, prolonging the lifespan of the screw and the components it secures.

Installation Guidelines

Proper installation of the 3171752 Hex Flange Head Cap Screw is crucial for optimal performance. Begin by ensuring that the mating surfaces are clean and free of debris. Use a torque wrench to apply the specified torque, which can be found in the manufacturer’s guidelines, to achieve the correct tension without overtightening. It is also recommended to periodically check the fastening to ensure it remains secure, especially in applications subject to vibration or dynamic loads.

Troubleshooting and Maintenance

Common issues with Hex Flange Head Cap Screws include loosening and corrosion. To address loosening, verify that the correct torque was applied during installation and consider using lock washers or thread-locking compounds for added security. Corrosion can be mitigated by selecting screws with appropriate coatings or treatments and by regularly inspecting and maintaining the fastened components to ensure they remain in good condition.

Cummins: Manufacturer Overview

Cummins Inc. is a globally recognized leader in the design, manufacture, and distribution of diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established a reputation for producing high-quality, reliable components for the commercial truck industry. Their extensive product range and commitment to innovation make them a trusted source for truck components, including the 3171752 Hex Flange Head Cap Screw.

Cummins Hex Flange Head Cap Screw (Part 3171752) Compatibility with Engine Models

The Cummins Hex Flange Head Cap Screw, part number 3171752, is a versatile component designed to fit a variety of Cummins engine models. This screw is integral in securing various parts within the engine assembly, ensuring structural integrity and operational efficiency. Below is a detailed overview of its compatibility with different engine series:

G-Series Engines

• G8.3
• G8.3 CM558
• GTA8.3 CM558

These engines, part of the G-Series, benefit from the use of the Hex Flange Head Cap Screw in securing components such as valve covers, intake manifolds, and other critical parts. The screw’s design ensures a tight and reliable fit, which is crucial for maintaining engine performance and longevity.

QSB6.7 M CM2250

The QSB6.7 M CM2250 engine utilizes the Hex Flange Head Cap Screw to secure various engine components. Its robust design and precise fitment are essential for the engine’s overall structural integrity.

QSK Series Engines

• QSK45 CM500
• QSK60 CM500
• QSK60 CM850 MCRS
• QSK60 G CM2358 K110
• QSK60G
• QSK78 CM500
• QSK95 CM2350 K111

These engines, part of the QSK series, incorporate the Hex Flange Head Cap Screw in several applications. The screw’s flange head provides a larger surface area for better torque distribution, which is vital for the high-performance demands of these engines.

QSL Series Engines

• QSL8.9 CM2150 L141
• QSL9 CM850 (CM2850)
• QSL9 G CM558

The QSL series engines use the Hex Flange Head Cap Screw for securing various components, ensuring that the engine maintains its structural integrity under high-stress conditions.

QSM and QSV Series Engines

• QSM11 CM570
• QSV91-G4 CM558/CM700 V102
• QSV91G

These engines, part of the QSM and QSV series, also rely on the Hex Flange Head Cap Screw for securing critical components. The screw’s design ensures that these engines can operate efficiently and reliably under various conditions.

The Hex Flange Head Cap Screw, part number 3171752, is a critical component in the assembly and maintenance of these Cummins engines. Its compatibility across various engine models underscores its importance in ensuring the engines’ structural integrity and performance.

Component Usage of Part 3171752 Hex Flange Head Cap Screw

Aftercooler

In the aftercooler system, part 3171752 is utilized to secure various components that facilitate the cooling of compressed air from the turbocharger. This ensures efficient and reliable operation of the aftercooler, contributing to optimal engine performance.

Air Cleaner

Within the air cleaner assembly, this hex flange head cap screw is employed to fasten components that filter incoming air, ensuring that only clean air enters the engine. This is essential for maintaining engine efficiency and longevity.

Arrangement - Crankcase Breather

For the crankcase breather arrangement, part 3171752 plays a role in securing elements that allow for the release of pressure and contaminants from the crankcase. This helps in maintaining a clean and pressurized crankcase environment.

Arrangement - Turbocharger

In turbocharger arrangements, this screw is used to fasten components that enhance the turbocharger’s efficiency. Proper securing of these parts ensures that the turbocharger operates within its optimal parameters, contributing to increased engine power and performance.

Base Rail

On the base rail, part 3171752 is crucial for mounting and securing various engine components. This ensures stability and proper alignment, which is vital for the overall structural integrity of the engine.

Bracket - Shipping

During shipping, this hex flange head cap screw is used in brackets to secure engine components, preventing damage and ensuring that parts remain in place during transit.

Cleaner - Air

In air cleaning systems, this screw is used to fasten components that filter air entering the engine, ensuring that the engine operates efficiently and remains free from contaminants.

Connection - Exhaust Outlet

At the exhaust outlet connection, part 3171752 is used to secure components that connect the exhaust system to the engine. This ensures a tight seal, preventing exhaust leaks and maintaining efficient exhaust flow.

Connection - Water Inlet

For water inlet connections, this screw is employed to fasten components that allow coolant to enter the engine. Proper securing ensures efficient coolant flow, which is essential for engine cooling.

Cooler - Marine Gear Oil

In marine gear oil coolers, part 3171752 is used to secure components that facilitate the cooling of gear oil. This ensures that the oil remains at an optimal temperature, enhancing the performance and longevity of marine gear systems.

Drive - Front Gear Train Accessory

Within the front gear train accessory drive, this screw is used to fasten components that drive various engine accessories. This ensures that these accessories operate efficiently and reliably.

Exchanger - Heat

In heat exchangers, part 3171752 is utilized to secure components that facilitate heat transfer. This ensures efficient operation of the heat exchanger, contributing to optimal engine performance.

Filter - Full Flow Oil

For full flow oil filters, this hex flange head cap screw is used to fasten components that filter oil circulating within the engine. This ensures that the engine receives clean oil, which is essential for its longevity and performance.

Fuel Plumbing

In fuel plumbing systems, this screw is employed to secure components that transport fuel to the engine. This ensures a reliable fuel supply, which is vital for engine operation.

Leak Test Kit

Within leak test kits, part 3171752 is used to fasten components that facilitate the detection of leaks in various engine systems. This ensures that any leaks are identified and addressed promptly, maintaining system integrity.

Module - Fuel Control

In fuel control modules, this screw is utilized to secure components that regulate fuel delivery to the engine. This ensures precise fuel control, which is essential for optimal engine performance.

Plumbing - Engine Coolant

For engine coolant plumbing, this hex flange head cap screw is used to fasten components that transport coolant throughout the engine. This ensures efficient coolant flow, which is vital for engine cooling.

Plumbing - Exhaust

In exhaust plumbing systems, this screw is employed to secure components that transport exhaust gases away from the engine. This ensures a reliable exhaust system, contributing to efficient engine operation.

Plumbing - Fuel Drain

For fuel drain plumbing, part 3171752 is used to fasten components that facilitate the draining of fuel from the engine. This ensures that any excess or contaminated fuel is removed efficiently.

Plumbing - Thermostat Housing

In thermostat housing plumbing, this screw is utilized to secure components that regulate the flow of coolant based on engine temperature. This ensures efficient engine cooling and optimal performance.

Pump - Lubricating Oil

Within lubricating oil pumps, part 3171752 is used to fasten components that circulate oil throughout the engine. This ensures that all moving parts are properly lubricated, enhancing engine performance and longevity.

Pump - Water

For water pumps, this hex flange head cap screw is employed to secure components that circulate coolant throughout the engine. This ensures efficient cooling, which is essential for engine operation.

Service Kit

In service kits, part 3171752 is used to fasten components that are essential for routine maintenance and repair of various engine systems. This ensures that all necessary components are securely in place during servicing.

Support - Rear Engine

For rear engine support systems, this screw is utilized to secure components that provide structural support to the engine. This ensures stability and proper alignment, which is vital for the engine’s overall performance.

System - Auxiliary Cooling

In auxiliary cooling systems, part 3171752 is used to fasten components that provide additional cooling to the engine. This ensures that the engine remains at an optimal temperature, enhancing its performance and longevity.

Conclusion

The 3171752 Hex Flange Head Cap Screw is a critical component in the assembly and maintenance of Cummins engines. Its robust design, compatibility with various engine models, and versatile applications across different engine systems underscore its importance in ensuring the structural integrity and performance of commercial trucks. Proper installation and maintenance of this Cummins part are essential for optimal engine operation and longevity.