411 Works 1" Steel Cups w/ Steel Bungs

411 Works 1" Steel Cups w/ Steel Bungs | Precision CNC Machined | Fabrication Components

Overview

The 411 Works 1" Steel Cups with Steel Bungs are precision-machined fabrication components designed for enthusiasts and fabricators who demand high-quality, reliable parts for custom projects. These steel cups and bungs serve as versatile mounting and attachment points, suitable for a variety of applications including suspension modifications, chassis bracing, and custom Subaru builds where strength and precision are paramount.

Manufactured in-house on HAAS CNC machines using premium 1018 steel sourced from North America, these components reflect 411 Works’ commitment to quality and durability. The cups come in three distinct profiles—Deep, Shallow, and Scallop—while the bungs are offered in four thread sizes (M6x1.0, M8x1.25, 1/4-20, and 5/16-18) to accommodate diverse fastening needs. This level of customization ensures a precise fit and seamless integration into your fabrication projects.

For Subaru enthusiasts, these steel cups and bungs provide a robust foundation for custom suspension linkages, roll cages, or chassis reinforcements. Their true size of 0.90" and consistent CNC machining guarantee repeatable fitment and strength, essential for maintaining vehicle integrity and performance under demanding conditions. Whether upgrading your WRX, STI, BRZ, or other Subaru platforms, these components offer the reliability and precision required for professional-grade builds.

Features & Specifications

This 411 Works 1" Steel Cups with Steel Bungs set is engineered for versatile fabrication use and features precision CNC machining from 1018 steel. Constructed from high-quality North American steel, it delivers strength and consistency for Subaru enthusiasts seeking durable and reliable mounting solutions.

• Brand: 411 Works
• Product: 1" Steel Cups w/ Steel Bungs
• Part Number: 411-SCSCS5165
• Fitment: Universal / Fabrication Use
• Material: 1018 Steel
• Finish: Raw Steel (Uncoated)
• Construction: CNC Machined
• Origin: Made in USA
• Cup Variations: Deep, Shallow, Scallop
• Bung Thread Options: M6x1.0, M8x1.25, 1/4-20, 5/16-18
• True Size: 0.90" diameter

Key Benefits

• Precision: CNC machining ensures tight tolerances and consistent dimensions for reliable fitment in custom Subaru fabrication projects.
• Durability: Made from high-quality 1018 steel, these cups and bungs provide excellent strength and wear resistance under stress.
• Versatility: Multiple cup profiles and thread sizes accommodate a wide range of mounting and fastening needs.
• Made in USA: Proudly manufactured domestically with North American steel for quality assurance and traceability.
• Subaru Compatibility: Ideal for custom suspension, chassis, and roll cage applications on WRX, STI, BRZ, and other Subaru models.
• Fabrication Ease: Designed to integrate seamlessly with other 411 Works components for streamlined build processes.

What's Included

• 1× 411 Works 1" Steel Cup (Deep, Shallow, or Scallop variation as selected)
• 1× 411 Works Steel Bung with selected thread size
• Installation instructions (included with purchase)

Installation & Compatibility

Installation of the 411 Works Steel Cups and Bungs requires basic fabrication skills and tools such as welding equipment and thread taps compatible with the selected bung thread size. These components are designed for universal fitment in custom applications and are not vehicle-specific, so verifying dimensions and compatibility with your Subaru project is essential before installation. Professional installation is recommended for critical suspension or chassis components to ensure safety and structural integrity.

• Professional Installation: Recommended for welding and precise alignment
• Modifications Required: None inherent, but custom fabrication and welding necessary
• Verify Compatibility: Confirm size and thread fitment for your specific application

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