411 WORKS 1" Steel Cups 1018 Steel

The 411 WORKS 1" Steel Cups are precision-machined fabrication components designed to provide clean mounting points for custom automotive and motorsport projects. Manufactured in-house in the USA on HAAS CNC machines, each cup is machined from high-quality North American 1018 steel. Available in Deep, Shallow, and Scallop configurations, these cups can be selected based on the mounting requirements of your project. Two bolt hole sizes are available to accommodate M6 / 1/4" or M8 / 5/16" hardware, sizes commonly used when mounting air coolers, fluid coolers, reservoirs, and other fabrication components. 1018 Steel Construction: Manufactured from high-quality North American 1018 steel for a durable, weldable fabrication component. Three Cup Configurations: Available in Deep, Shallow, and Scallop variations to accommodate different mounting and fabrication requirements. Two Bolt Hole Sizes: Choose between M6 / 1/4" or M8 / 5/16" bolt hole configurations. 0.90-Inch Actual Diameter: The 1" cup has a true outside diameter of 0.90" for accurate fabrication planning. Versatile Mounting Applications: Commonly used for mounting air and fluid coolers, reservoirs, and other components in custom fabrication projects. CNC-Machined Construction: Precision machined in-house using HAAS CNC equipment for consistent dimensions and quality. Made in the USA: Manufactured in-house by 411 WORKS using North American-sourced 1018 steel. Available Cup Options Deep Shallow Scallop Available Bolt Hole Options M6 / 1/4" M8 / 5/16" What's Included (1) 411 WORKS 1" Steel Cup in selected configuration and bolt hole size Vehicle Fitment Universal fabrication application Suitable for custom automotive and motorsport fabrication Commonly used for mounting compatible air coolers, fluid coolers, reservoirs, and other components Final compatibility depends on the component, hardware size, mounting location, and fabrication requirements Specifications Brand: 411 WORKS Product Type: Fabrication Cup Material: 1018 Steel Outside Diameter: 0.90" Cup Options: Deep / Shallow / Scallop Bolt Hole Options: M6 / 1/4" and M8 / 5/16" Manufacturing Process: CNC Machined CNC Equipment: HAAS Material Origin: North America Manufacturing Location: USA Fitment: Universal Spec Drawings M6 Deep Cup Spec Drawing M8 Deep Cup Spec Drawing M6 Shallow Cup Spec Drawing M8 Shallow Cup Spec Drawing Important Notes Sold individually. This is a universal fabrication component and is not vehicle specific. Select Deep, Shallow, or Scallop based on your application. Select either the M6 / 1/4" or M8 / 5/16" bolt hole option before ordering. The 1" product designation has an actual outside diameter of 0.90". M6 / 1/4" and M8 / 5/16" sizes are commonly used for mounting coolers and reservoirs but are not limited to those applications. Specification drawings were provided for the Deep and Shallow configurations. Verify dimensions for your selected configuration before fabrication. Verify hardware size, component dimensions, mounting location, and clearance before ordering. Welding or additional fabrication may be required depending on the application. Professional fabrication is recommended for structural 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 1" steel cups provide builders with a purpose-built mounting solution that can be incorporated into a variety of custom automotive and motorsport projects. With three cup configurations and two bolt hole options, the 411 WORKS 1" Steel Cups offer flexibility for mounting coolers, reservoirs, and other components while maintaining a clean fabricated installation.