411 Works 1" Weld Bungs

411 Works 1" Weld Bungs | Precision CNC Machined | Fabrication Accessory

Overview

The 411 Works 1" Weld Bungs are precision-machined components designed for custom fabrication and modification projects. These bungs serve as reliable threaded inserts that can be welded onto various surfaces, providing secure mounting points for sensors, fittings, or other hardware. Ideal for Subaru enthusiasts and fabricators who demand exact fitment and durability, these bungs offer versatility across multiple applications including exhaust, intake, and fluid systems.

Manufactured in-house on HAAS CNC machines using premium North American materials, 411 Works emphasizes quality and consistency in every piece. Available in both 6061 aluminum and 1018 steel, these bungs are engineered to meet the rigorous demands of performance builds and custom installations. The availability of four different thread sizes ensures compatibility with a wide range of fasteners and sensors, making them a practical choice for Subaru owners who value precision and reliability.

For Subaru enthusiasts undertaking custom fabrication or repairs, the 411 Works 1" Weld Bungs provide a dependable foundation for mounting critical components. Their true 0.90" size and robust construction guarantee a secure fit and long-lasting performance, enhancing the overall quality of your build. Whether you’re upgrading your WRX, STI, BRZ, or other Subaru platform, these bungs integrate seamlessly with other high-quality parts for a professional finish.

Features & Specifications

This 411 Works 1" Weld Bung is engineered for versatile fabrication use and features precision CNC machining from North American 1018 steel or 6061 aluminum. Constructed with a true 0.90" size, it delivers reliable, durable mounting points for Subaru enthusiasts seeking quality and adaptability in custom builds.

• Brand: 411 Works
• Product: 1" Weld Bungs
• Part Number: 411-SWB5165
• Fitment: Universal / N/A
• Material: 1018 Steel or 6061 Aluminum
• Finish: Raw (uncoated)
• Construction: Precision CNC Machined
• Origin: Made in USA
• Thread Options: M6x1.0, M8x1.25, 1/4-20, 5/16-18
• Bung Size: True 0.90" diameter

Key Benefits

• Quality: Precision CNC machining ensures consistent dimensions and reliable thread engagement for secure fittings.
• Durability: Made from high-grade 1018 steel or 6061 aluminum, these bungs withstand harsh environments and welding processes.
• Fitment Flexibility: Multiple thread sizes accommodate a wide variety of sensors and fittings common in Subaru performance and maintenance applications.
• Made in USA: Manufactured domestically with North American materials, supporting quality control and supply chain reliability.
• Fabrication Versatility: Ideal for custom exhaust, intake, or fluid system modifications on WRX, STI, BRZ, and other Subaru models.

What's Included

• 1× 411 Works 1" Weld Bung (thread size as selected)

Installation & Compatibility

Installation of the 411 Works 1" Weld Bungs requires welding skills and appropriate equipment, making professional installation recommended for best results. These bungs are designed as universal fabrication components and do not require vehicle-specific modifications. Ensure the thread size matches your application before installation. No tuning or additional modifications are necessary beyond proper welding and fitment checks.

• Professional Installation: Recommended
• Modifications Required: None beyond welding
• Verify Compatibility: Confirm thread size and application fitment prior to purchase

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