Galvanized Steel Perforated Square Tube | Linear | Coremark Metals
Need to join 2 perforated square metal tubes at at 90 degree angle and limit rotation at that joint. Any ideas for how to connect the two pieces of tubing, aside from
Amazon.com: Stanley N341-305 Perforated Square Tube, 1-1/4' x 3' : Industrial & Scientific
Telescoping Square Tubing | Sonco
Perforated Square Tube for Making Telescoping Tube, Sign Post