3010595
Captive Washer Cap Screw
Cummins®

The Cummins Captive Washer Cap Screw, part number 3010595, is a specialized fastener designed for use in commercial truck maintenance. Cummins, a well-established manufacturer in the diesel engine and related technologies sector, produces this component. The screw is integral to ensuring the secure fastening and sealing of various truck components, contributing to the overall reliability and performance of the vehicle.

Basic Concepts

A Captive Washer Cap Screw is a type of fastener that incorporates a washer within its design. The captive washer is attached to the screw, typically by a small stem or post, and moves with the screw as it is tightened or loosened. This design ensures that the washer remains in place, providing a consistent sealing effect and helping to prevent the screw from loosening over time. The washer plays a role in distributing the load of the screw more evenly across the fastened surfaces, which can reduce the risk of damage to the materials being joined ¹.

Purpose and Function

The 3010595 Captive Washer Cap Screw serves a significant role in the operation of a truck. It is used to secure various components together, ensuring that they remain firmly in place under the dynamic conditions experienced during truck operation. Additionally, the captive washer within the screw provides a seal that helps to prevent leaks, which is particularly important in applications where fluids are present. This sealing capability contributes to the integrity and reliability of truck components, reducing the likelihood of failures that could lead to downtime or safety issues ².

Key Features

The 3010595 Captive Washer Cap Screw is characterized by several key features that enhance its performance and durability in heavy-duty applications. These include its material composition, which is typically a high-strength alloy designed to withstand the rigors of truck use, and its thread type, which is engineered to provide a secure grip on the fastened materials. The design of the captive washer is also critical, as it must be robust enough to maintain its sealing properties under varying conditions while moving smoothly with the screw ³.

Benefits

Using the 3010595 Captive Washer Cap Screw offers several advantages. The integrated washer provides improved sealing compared to traditional screws, which can help to prevent leaks and reduce the need for additional sealing materials. Additionally, the design of the screw helps to ensure that components remain securely fastened, which can reduce maintenance requirements and enhance the overall security of the fastened components. This can lead to increased uptime and reduced repair costs for truck operators.

Troubleshooting and Maintenance

Common issues associated with Captive Washer Cap Screws can include wear on the washer, which may compromise the seal, or corrosion, which can affect the screw’s ability to tighten or loosen. Regular inspection and replacement of worn or damaged screws can help to maintain the integrity of the fastening system. Additionally, applying an appropriate lubricant can facilitate easier tightening and loosening of the screw, which can prolong its service life and maintain its effectiveness in truck applications.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established itself as a trusted name in the commercial truck industry, known for its commitment to quality and innovation. The company’s expertise in engine and component design is reflected in its product offerings, which are engineered to meet the demanding requirements of heavy-duty applications.

Cummins Captive Washer Cap Screw 3010595 Compatibility

The Cummins Captive Washer Cap Screw part number 3010595 is a versatile component designed to fit a wide range of Cummins engines. This part is integral to securing various engine components, ensuring stability and reliability during operation. Below is a detailed breakdown of the engines with which this screw is compatible, grouped by engine series for clarity.

6 Series Engines

• 6B5.9
• 6C8.3

These engines, part of the 6 Series, are known for their robust performance in various applications. The 3010595 screw is used in securing components within these engines, ensuring tight and reliable connections.

G Series Engines

• G855
• G855 CM558
• GTA38 G CMEICS G116C
• GTA855 CM558 (CM2358) G101

The G Series engines, including the G855 and its variants, benefit from the 3010595 screw in maintaining structural integrity. This screw is particularly useful in securing components in the GTA series engines, which are known for their advanced technology and performance.

ISM and ISX Engines

• ISM CM570
• ISX CM570

These engines are part of the ISM and ISX series, designed for heavy-duty applications. The 3010595 screw is used in securing various components within these engines, ensuring that all parts remain tightly fastened and operational.

K Series Engines

• K19
• K38
• K50

The K Series engines, including the K19, K38, and K50, are known for their reliability and efficiency. The 3010595 screw is used in securing components within these engines, ensuring that all parts remain tightly fastened and operational.

KTA Series Engines

• KTA19GC
• KTA19GC CM558
• KTA38GC CM558

The KTA Series engines, such as the KTA19GC and KTA38GC, are designed for high-performance applications. The 3010595 screw is used in securing components within these engines, ensuring that all parts remain tightly fastened and operational.

L Series Engines

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

The L Series engines, including the L10 CELECT, L10 GAS, and L10 MECHANICAL, are known for their versatility and efficiency. The 3010595 screw is used in securing components within these engines, ensuring that all parts remain tightly fastened and operational.

M Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The M Series engines, including the M11 CELECT, M11 CELECT PLUS, and M11 MECHANICAL, are designed for a range of applications. The 3010595 screw is used in securing components within these engines, ensuring that all parts remain tightly fastened and operational.

N Series Engines

• N14 CELECT
• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

The N Series engines, including the N14 CELECT, N14 CELECT PLUS, N14 G, and N14 MECHANICAL, are known for their durability and performance. The 3010595 screw is used in securing components within these engines, ensuring that all parts remain tightly fastened and operational.

NH/NT 855

• NH/NT 855

The NH/NT 855 engine is part of the Cummins lineup, designed for heavy-duty applications. The 3010595 screw is used in securing components within this engine, ensuring that all parts remain tightly fastened and operational.

Role of Part 3010595 Captive Washer Cap Screw in Engine Systems

The 3010595 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. It ensures that parts remain firmly attached, thereby maintaining the integrity and efficiency of the engine system. Here’s how it interfaces with specific components:

• Aneroid and Breather Vent Mounting Tube: The screw secures the breather vent mounting tube to the aneroid, ensuring that ventilation systems function correctly without leaks.

• Bypass Mounting: It plays a role in attaching bypass components, which are essential for redirecting fluid flow when necessary, thus maintaining system pressure and performance.

• Camshaft Mounting: Secures the camshaft in place, which is vital for the precise timing of valve operations, directly influencing engine performance and efficiency.

• Cover and Cylinder Block: Fastens the cover to the cylinder block, ensuring that the engine’s internal components are protected and sealed properly.

• EBM: Cover: Used to attach the EBM cover, which is often part of the engine’s electronic control systems, ensuring reliable operation of electronic components.

• Exhaust Collector and Exhaust Outlet Connection Mounting: Ensures that the exhaust system is securely mounted, preventing leaks and ensuring efficient expulsion of exhaust gases.

• Filter 8 Check Valve: Secures the check valve in the fuel system, which is important for maintaining fuel pressure and preventing backflow.

• Float Tank and Fuel Tube: Attaches the fuel tube to the float tank, ensuring a secure connection that prevents fuel leaks and maintains consistent fuel delivery.

• Heat Exchanger Cooler: Fastens the heat exchanger cooler, which is critical for regulating engine temperature by dissipating heat effectively.

• Housing Thermostat and Mounting: Secures the thermostat housing, which controls the flow of coolant to the engine, ensuring optimal operating temperature.

• Lubricating Oil Pump and Oil Control Valve: Ensures these components are firmly mounted, which is essential for consistent oil circulation and pressure within the engine.

• Oil Gauge Tube & Dipstick: Attaches the oil gauge tube and dipstick, allowing for accurate measurement of oil levels and ensuring the engine is properly lubricated.

• Manifold, Exhaust Water Cooled, and Manifold Wet: Secures these manifolds, which are crucial for managing the flow of exhaust gases and coolant, respectively.

• Short Block Assembly: Plays a role in assembling the short block, which includes the cylinder block, crankshaft, pistons, and other core components.

• Shut-off Valve Mounting Tubes: Ensures that shut-off valves are securely mounted, which is important for controlling fluid flow in various engine systems.

• Water Drain Tube and Water Inlet Mounting Heat Exchanger Tube: Secures tubes related to the cooling system, ensuring efficient drainage and inlet of coolant to maintain engine temperature.

Conclusion

The Cummins 3010595 Captive Washer Cap Screw is a critical component in the maintenance and operation of commercial trucks. Its design, featuring an integrated washer, ensures secure fastening and sealing of various engine components, contributing to the reliability and performance of the vehicle. Regular maintenance and proper use of this part can lead to increased uptime and reduced repair costs, making it a valuable asset for truck operators.