If you are using hammer on flange clips to mount to I beams or bar joists, we have them on hand.  The most common is the 1/8/-1/4″ size, meaning it is designed to hammer on to a 1/8″ to 1/4″ size horizontal flange.  Typical applications are suspending signs, fixtures, lighting, cable runs and speakers.  Really anything you want to suspend with grid wire, jack chain or cable.   We put together a conversion chart for our part #HOK24 below.  If you are using hammer on flange clips from Caddy, B-Line, Garvin or Minerallac, you will see the direct conversion on the chart below.  You can find the HOK24 Hammer On Flange Clip at ConstructionFastening.Net.