JP131DW-L20 J-Pro Cable Support 

• J-Hook with Drop Wire and Rod Clip has a patented design, featuring
  complete horizontal and vertical 1” bend radius control, which prevents pinch
  points and degradation of cable performance. They are suitable for use in air
  handling spaces and are UL listed. For use with #12 wire, threaded rod up to
  3/8” (9.5mm) in diameter or 1/8” - 3/8” (3.2mm-9.5mm), 1.31” (33.3mm) max.
  bundle capacity. Made of Nylon 6.6, are black in color, and come in packages
  of 50.