411 WORKS 1/2" Steel Cups with Aluminum Bungs

The 411 WORKS 1/2" Steel Cups with Aluminum Bungs are precision-machined fabrication components designed for builders who need clean, consistent mounting solutions for custom automotive and motorsport projects. Each component is machined in-house using HAAS CNC equipment with an emphasis on dimensional consistency, quality, and reliability. The 1/2" steel cups are available in Deep and Scallop configurations, while the aluminum bungs are offered with M6x1.0 or 1/4-20 threads. With multiple configurations available, builders can select the combination that best suits their fabrication project. CNC-Machined Construction: Precision machined in-house by 411 WORKS using HAAS CNC equipment for consistent dimensions and fitment. 1018 Steel Cups: Cups are manufactured from high-quality 1018 steel sourced from North America. Two Cup Styles: Choose between Deep and Scallop cup configurations depending on your fabrication requirements. Two Bung Thread Options: Aluminum bungs are available with M6x1.0 or 1/4-20 threads. True 0.55-Inch Cup Diameter: The 1/2" cups measure an actual 0.55" in diameter for accurate fabrication planning. Compact Bung Design: Bungs measure 0.55" in diameter and 0.38" tall. Made in the USA: Precision CNC machined in-house using North American-sourced materials. Available Cup Options Deep Cup Scallop Cup Available Bung Thread Options M6x1.0 1/4-20 What's Included 411 WORKS 1/2" Steel Cup in selected configuration 411 WORKS Aluminum Bung in selected thread configuration Vehicle Fitment Universal fabrication application Designed for custom automotive and motorsport fabrication Final compatibility depends on the intended component, mounting location, dimensions, and fabrication requirements Specifications Brand: 411 WORKS Product Type: Fabrication Cups & Bungs Cup Material: 1018 Steel Bung Material: Aluminum Cup Diameter: 0.55" Cup Height: 0.75" Bung Diameter: 0.55" Bung Height: 0.38" Cup Styles: Deep / Scallop Bung Threads: M6x1.0 / 1/4-20 Manufacturing Process: CNC Machined CNC Equipment: HAAS Manufacturing Location: USA Fitment: Universal Spec Drawings Deep Cup Spec Drawing: Scallop Cup Spec Drawing: Bung Spec Drawing: Important Notes This is a universal fabrication product and is not vehicle specific. Select the appropriate Deep or Scallop cup configuration before ordering. Select either M6x1.0 or 1/4-20 bung threads based on your application. The 1/2" designation refers to the product series. The cups measure an actual 0.55" in diameter. Cups measure 0.55" in diameter and 0.75" tall. Bungs measure 0.55" in diameter and 0.38" tall. Review the applicable specification drawing before fabrication. Verify all dimensions, thread requirements, clearances, and intended use before ordering. Welding, machining, or additional fabrication may be required depending on the application. Professional fabrication is recommended for structural, suspension, steering, or safety-critical applications. Why Choose 411 WORKS? 411 WORKS manufactures its fabrication components in-house using HAAS CNC equipment with an emphasis on precision, quality, and reliability. These cups and bungs provide builders with accurately machined components that can be incorporated into a variety of custom fabrication projects. With two steel cup configurations, two aluminum bung thread options, and clearly defined dimensions, the 411 WORKS 1/2" Cups and Bungs provide a versatile foundation for custom automotive and motorsport fabrication.