Wire Shelf Post Grow-Light Arm Clamp
A pinch clamp that bolts onto a 1 in (25.4 mm) wire-shelving post and holds a 1/2 in EMT conduit arm (17.9 mm OD) sticking straight out, so you can hang LED grow bars or shop lights from it with S-hooks or chain instead of zip ties. Two M5 bolts close a 4 mm pinch slot, so it grips posts from about 24.9 to 26.2 mm. A third M5 bolt goes through the 38 mm deep socket and a hole you drill in the EMT, which stops the arm from twisting or sliding out. It measures 84 x 36 x 36 mm.
garage wire-shelving grow-light emt-conduit