80/20 Inc. 4399 Pivot Arm Tri-corner Series 15 Aluminum

Product Description

The 80/20 INC. 4399 is an aluminum pivot arm designed for use in Series 15 modular framing systems. It connects structural members at angled or pivoting joints, giving fabricators the ability to build frames with non-fixed orientations. The arm measures 6 inches in length, 1.49 inches in width, and 0.25 inches in thickness. It is finished with a gray anodized coating for corrosion resistance and long service life. Used with Bolt Kit 3320, the 4399 integrates directly into T-slot assemblies without welding or specialized tooling. Industrial fabricators, machine builders, and systems integrators are the primary installers.

The 4399 pivot arm fits into Series 15 T-slot framing applications, including workstation frames, machine guards, conveyor structures, and custom enclosures. The anodized aluminum construction keeps the component lightweight while maintaining structural integrity under mechanical loads. The pivot arm style allows angular positioning between members, making it well-suited for adjustable frame configurations where fixed-angle brackets are not appropriate. Bolt Kit 3320 must be used with this component to complete the connection at the joint.

Key Features

• Pivot arm style allows adjustable angular positioning between Series 15 frame members
• Anodized gray aluminum finish provides corrosion resistance and long-lasting connection
• Compatible with Bolt Kit 3320 for T-nut bolt assembly integration
• Larger clearance area design supports easier assembly in tight framing layouts
• Easily assembled without welding or specialty tooling
• Compact profile at 6 inches long and 0.25 inches thick minimizes added bulk at joint locations

Compatibility

Designed for use with 80/20 Series 15 T-slot framing systems and requires Bolt Kit 3320 for proper installation.

Installation Notes

Installation is typically performed by industrial fabricators or mechanical assemblers working with modular T-slot framing. Disengage or de-energize any moving or powered components connected to the frame before servicing joints. Use appropriate T-nut hardware and follow the assembly sequence recommended for Series 15 components. Do not overtighten fasteners beyond the torque guidance provided in the 80/20 assembly documentation for this series.