411 Works 1.5" Flat Weld Bungs | Precision CNC Machined | Fabrication Accessory
Overview
The 411 Works 1.5" Flat Weld Bungs are precision-machined components designed for custom fabrication and welding applications. Ideal for Subaru enthusiasts and fabricators looking to add threaded ports for sensors, fittings, or other hardware, these bungs provide a reliable and consistent base for weld-on installations. Whether you're modifying exhaust systems, oil lines, or other custom setups, these bungs offer a versatile solution for integrating threaded connections with ease.
Manufactured in-house on HAAS CNC machines using high-quality 1018 steel sourced from North America, these flat weld bungs reflect 411 Works’ commitment to quality and precision. The design incorporates a lightweight construction by removing excess material from the backside, reducing weight without compromising strength. The consistent 1/8" sidewall thickness ensures a clean and strong weld, facilitating a professional finish and reliable joint integrity.
For Subaru owners who frequently engage in performance upgrades or custom builds, these flat weld bungs provide a dependable foundation for sensor ports or fluid fittings. Their precise thread options—M10 x 1.5 and 3/8-16—cover common sensor and fitting sizes used in Subaru platforms, making them a practical choice for WRX, STI, BRZ, and other models. The American-made quality and thoughtful engineering mean you can trust these bungs to perform well in demanding environments.
Features & Specifications
This 411 Works 1.5" Flat Weld Bung is engineered for custom fabrication and welding applications, featuring precision CNC machining from 1018 steel. Constructed for strength and lightweight performance, it delivers a reliable weld base for Subaru enthusiasts seeking durable and accurate threaded ports.
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Brand: 411 Works
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Product: 1.5" Flat Weld Bungs
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Part Number: 411-FWB38
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Fitment: Universal / N/A
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Material: 1018 Steel
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Finish: Raw steel (uncoated)
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Construction: CNC machined on HAAS machines
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Origin: Made in USA
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Thread Options: M10 x 1.5 and 3/8-16
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Wall Thickness: 1/8" consistent sidewall for welding
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Weight Reduction: Material removed from backside for lighter weight
Key Benefits
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Precision Fitment: CNC machining ensures consistent thread quality and dimensional accuracy for reliable sensor or fitting installation.
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Welding Ease: Uniform 1/8" sidewall thickness provides a clean, strong weld surface, simplifying fabrication work.
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Lightweight Design: Reduced material on the backside lowers weight without sacrificing structural integrity, beneficial for performance builds.
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Material Quality: Made from durable 1018 steel sourced in North America, ensuring strength and corrosion resistance when properly finished.
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Versatility: Available in two common thread sizes, compatible with a wide range of sensors and fittings used in Subaru performance and maintenance applications.
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Made in USA: Supports domestic manufacturing standards and quality control for peace of mind.
What's Included
- 1× 411 Works 1.5" Flat Weld Bung (thread size as selected)
Installation & Compatibility
Installation of the 411 Works Flat Weld Bungs requires welding skills and equipment, making professional installation recommended for best results. The consistent sidewall thickness facilitates welding, but proper technique and safety precautions are essential. These bungs are universal and designed to be welded onto custom fabrication projects, so verify thread size compatibility with your sensors or fittings before installation. No modifications are required beyond welding, but ensure your application suits the 1.5" bung size and thread pitch.
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Professional Installation: Recommended
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Modifications Required: None beyond welding
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Verify Compatibility: Confirm thread size and application fitment before purchase
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