Check out the full line HPH Catalog.  The HPH line of J-Hooks offer the best fit and finish in j hook supports for cable.  The HPH is UL listed, TIA compliant and approved for air handling spaces.  Available in 1″, 2″, 3″ & 4″ sizes and feature a built in latch.  Check out the wide variety of applications you can handle with the HPH.  From red iron bar joists, purlin flanges, I beams, concrete ceilings and more, you will find an HPH assembly for the job.  Now available in colors to separate out specific runs or purposes.