The 4 Way Corner Connector for 1" square metal tubing creates strong flat four-way joints for modular frames and grid structures — no welding required. A reliable choice for electricians, HVAC technicians, contractors, and manufacturers building equipment platforms, support grids, and modular panel frames on site. Rostek can supply the steel tubing cut to your exact specifications — receive your connectors and pre-cut steel together and build immediately on site. Custom B2B kits available for contractors, manufacturers, and farm operations.

• Fits 1" square metal tubing - 
• Buy 4 or more and save 20% -
• B2B and bulk orders welcome -
• Custom kits available — connectors + pre-cut steel delivered together -
• Steel cut-to-size — call 888-249-8065 -
• No welding required — assembles with included set screws -
• Ideal for equipment platforms, support grids, modular panel frames, and flat structural builds