Morris 28883 Wedge Clamp for 2/0-4/0 Cable (5-Pack) - Heavy Duty Electrical Connectors for Power Distribution & Utility Applications

This is exactly the professional standard for hanging the corresponding cable sizes (specified in item description.) I added a WiFi PoE outdoor Access Point on a tall pole, strung back to the second story (that's 2 of these things.) I was surprised, and satisfied, to see when I was up there this is exactly the same design as my telephone line and 120VAC lines were strung with - 30yrs ago! You can't beat a perfect design! (Note to other DIY installers, after you anchor and lock the stainless loop, it seems to be standard to press the loop into a keyhole shape with your hand to remove the tension.)