E00791 Pivotable Stainless Steel Pivotable Connector for 1/2" Bar w/ Set Screws for Square Tube. External diameter 7/8". This INOX Stainless Steel Connector has a pivotable connector and features a 0.01" hole
Durable 316 Stainless Steel Tube Connector For Boats - Folding Swivel Coupling For Easy Installation And Secure Connection - Temu
10 Sets 1 Inch 90 Degree Structural Pipe Connector 3 Way Metal Joint Chain Link Fence Clamp, Stainless Steel 201 Corner Fitting End Rails Clamps, Thickness 1.8mm - Amazon.com
Tube connector for Ø 38.1 mm tubes, 90 ° | VKF Renzel
3-Way Tube Connector-3-Way Stainless Steel Angle Pipe Joint Pipe Joint Side Outlet Elbow 1 Inch - Amazon.com