80/20 Inc. 40-4301 Inside Corner Bracket 40 Series

Product Description

The 80/20 INC. 40-4301 is a tall inside corner bracket designed for structural framing assemblies built with 40 Series aluminum extrusion profiles. Constructed from aluminum with a clear anodized finish, this bracket creates rigid 90-degree inside corner connections between extrusion members. It features a 2-degree drop-lock mechanism that simplifies alignment during assembly and locks components securely in place. Four mounting holes arranged in a two-holes-stacked configuration distribute load across the joint. Used with the 40 Series Bolt Kit 75-3422, this bracket is suited for machine frames, workstations, enclosures, and industrial structures where repeatable corner connections are required.

This bracket is intended for use in 40 Series modular framing systems. It is a standard component in industrial, commercial, and automation framing builds. Fabricators, millwrights, and systems integrators installing T-slot aluminum framing use this bracket to form inside corners without welding or complex machining. It is compatible with the 80/20 INC. Bolt Kit 75-3422 as specified by the manufacturer.

Key Features

• Tall inside corner bracket with 90-degree connection geometry
• 2-degree drop-lock design for simplified alignment and secure fit
• Four mounting holes in a two-holes-stacked arrangement
• Aluminum construction with clear anodized finish for corrosion resistance
• Designed for use with 40 Series extrusion and Bolt Kit 75-3422
• Enables tool-accessible inside corner joints without welding

Compatibility

Designed for use with 80/20 INC. 40 Series aluminum extrusion profiles. Requires Bolt Kit 75-3422 for proper installation as specified by the manufacturer.

Installation Notes

Installation is typically performed by fabricators or millwrights assembling T-slot aluminum framing systems. Power down any integrated equipment before modifying an existing frame structure. Use the specified 40 Series Bolt Kit 75-3422 to secure the bracket - do not substitute fasteners not rated for this series. Follow the framing system manufacturer guidelines for joint torque and assembly sequence.